Use dep for dependency management and commit vendor

Summary:
Our current lack of dependency management is leading to issues with
Debian packaging and risks inconsistent builds. Let's use `dep`, the
"official experiment" for go dependency management, and commit the
vendor directory which is small enough following a `dep prune`.

Fixes T180530
Depends on D881

Test Plan:
Run `make` or `go build -v` and examine output to ensure use of `vendor/`
packages.

Reviewers: thcipriani, Joe, #release-engineering-team

Reviewed By: thcipriani, #release-engineering-team

Tags: #release-engineering-team

Maniphest Tasks: T180530

Differential Revision: https://phabricator.wikimedia.org/D882

140 files changed, 46838 insertions, 1 deletions

diff --git a/Gopkg.lock b/Gopkg.lock
new file mode 100644
index 0000000..8a4aeee
--- /dev/null
+++ b/Gopkg.lock
@@ -0,0 +1,57 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/davecgh/go-spew"
+  packages = ["spew"]
+  revision = "346938d642f2ec3594ed81d874461961cd0faa76"
+  version = "v1.1.0"
+
+[[projects]]
+  name = "github.com/docker/distribution"
+  packages = ["digest","reference"]
+  revision = "48294d928ced5dd9b378f7fd7c6f5da3ff3f2c89"
+  version = "v2.6.2"
+
+[[projects]]
+  name = "github.com/go-playground/locales"
+  packages = [".","currency"]
+  revision = "e4cbcb5d0652150d40ad0646651076b6bd2be4f6"
+  version = "v0.11.2"
+
+[[projects]]
+  name = "github.com/go-playground/universal-translator"
+  packages = ["."]
+  revision = "b32fa301c9fe55953584134cb6853a13c87ec0a1"
+  version = "v0.16.0"
+
+[[projects]]
+  name = "github.com/pmezard/go-difflib"
+  packages = ["difflib"]
+  revision = "792786c7400a136282c1664665ae0a8db921c6c2"
+  version = "v1.0.0"
+
+[[projects]]
+  name = "github.com/stretchr/testify"
+  packages = ["assert"]
+  revision = "69483b4bd14f5845b5a1e55bca19e954e827f1d0"
+  version = "v1.1.4"
+
+[[projects]]
+  name = "gopkg.in/go-playground/validator.v9"
+  packages = ["."]
+  revision = "61caf9d3038e1af346dbf5c2e16f6678e1548364"
+  version = "v9.9.0"
+
+[[projects]]
+  branch = "v2"
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "eb3733d160e74a9c7e442f435eb3bea458e1d19f"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "a207dfcd5255a9f7ed6e08d3982f8f3075d29d45b7d0bb7ad31709e04755a649"
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
new file mode 100644
index 0000000..467ae19
--- /dev/null
+++ b/Gopkg.toml
@@ -0,0 +1,18 @@
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+
+[[constraint]]
+  name = "github.com/docker/distribution"
+  version = "2.6.2"
+
+[[constraint]]
+  name = "github.com/stretchr/testify"
+  version = "1.1.4"
+
+[[constraint]]
+  name = "gopkg.in/go-playground/validator.v9"
+  version = "9.9.0"
+
+[[constraint]]
+  branch = "v2"
+  name = "gopkg.in/yaml.v2"
diff --git a/Makefile b/Makefile
index 116e2b9..84d62f7 100644
--- a/Makefile
+++ b/Makefile
@@ -16,9 +16,9 @@ clean:
 bin/blubber:
 	mkdir -p $(dir $(BUILD_DIR))
 	ln -s $(CURDIR) $(BUILD_DIR)
-	cd $(BUILD_DIR) && go get ./...
 	cd $(BUILD_DIR) && go build -v -i -ldflags "$(GO_LDFLAGS)"
 	mkdir -p $(CURDIR)/bin && mv $(BUILD_DIR)/blubber $(BINARY)
+	rm -rf $(CURDIR)/.build
 
 
 .PHONY: all clean
diff --git a/vendor/github.com/davecgh/go-spew/.gitignore b/vendor/github.com/davecgh/go-spew/.gitignore
new file mode 100644
index 0000000..0026861
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/.gitignore
@@ -0,0 +1,22 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
diff --git a/vendor/github.com/davecgh/go-spew/.travis.yml b/vendor/github.com/davecgh/go-spew/.travis.yml
new file mode 100644
index 0000000..984e073
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/.travis.yml
@@ -0,0 +1,14 @@
+language: go
+go:
+    - 1.5.4
+    - 1.6.3
+    - 1.7
+install:
+    - go get -v golang.org/x/tools/cmd/cover
+script:
+    - go test -v -tags=safe ./spew
+    - go test -v -tags=testcgo ./spew -covermode=count -coverprofile=profile.cov
+after_success:
+    - go get -v github.com/mattn/goveralls
+    - export PATH=$PATH:$HOME/gopath/bin
+    - goveralls -coverprofile=profile.cov -service=travis-ci
diff --git a/vendor/github.com/davecgh/go-spew/LICENSE b/vendor/github.com/davecgh/go-spew/LICENSE
new file mode 100644
index 0000000..c836416
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/LICENSE
@@ -0,0 +1,15 @@
+ISC License
+
+Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/vendor/github.com/davecgh/go-spew/README.md b/vendor/github.com/davecgh/go-spew/README.md
new file mode 100644
index 0000000..2624304
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/README.md
@@ -0,0 +1,205 @@
+go-spew
+=======
+
+[![Build Status](https://img.shields.io/travis/davecgh/go-spew.svg)]
+(https://travis-ci.org/davecgh/go-spew) [![ISC License]
+(http://img.shields.io/badge/license-ISC-blue.svg)](http://copyfree.org) [![Coverage Status]
+(https://img.shields.io/coveralls/davecgh/go-spew.svg)]
+(https://coveralls.io/r/davecgh/go-spew?branch=master)
+
+
+Go-spew implements a deep pretty printer for Go data structures to aid in
+debugging.  A comprehensive suite of tests with 100% test coverage is provided
+to ensure proper functionality.  See `test_coverage.txt` for the gocov coverage
+report.  Go-spew is licensed under the liberal ISC license, so it may be used in
+open source or commercial projects.
+
+If you're interested in reading about how this package came to life and some
+of the challenges involved in providing a deep pretty printer, there is a blog
+post about it
+[here](https://web.archive.org/web/20160304013555/https://blog.cyphertite.com/go-spew-a-journey-into-dumping-go-data-structures/).
+
+## Documentation
+
+[![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg)]
+(http://godoc.org/github.com/davecgh/go-spew/spew)
+
+Full `go doc` style documentation for the project can be viewed online without
+installing this package by using the excellent GoDoc site here:
+http://godoc.org/github.com/davecgh/go-spew/spew
+
+You can also view the documentation locally once the package is installed with
+the `godoc` tool by running `godoc -http=":6060"` and pointing your browser to
+http://localhost:6060/pkg/github.com/davecgh/go-spew/spew
+
+## Installation
+
+```bash
+$ go get -u github.com/davecgh/go-spew/spew
+```
+
+## Quick Start
+
+Add this import line to the file you're working in:
+
+```Go
+import "github.com/davecgh/go-spew/spew"
+```
+
+To dump a variable with full newlines, indentation, type, and pointer
+information use Dump, Fdump, or Sdump:
+
+```Go
+spew.Dump(myVar1, myVar2, ...)
+spew.Fdump(someWriter, myVar1, myVar2, ...)
+str := spew.Sdump(myVar1, myVar2, ...)
+```
+
+Alternatively, if you would prefer to use format strings with a compacted inline
+printing style, use the convenience wrappers Printf, Fprintf, etc with %v (most
+compact), %+v (adds pointer addresses), %#v (adds types), or %#+v (adds types
+and pointer addresses): 
+
+```Go
+spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
+spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
+spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
+spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
+```
+
+## Debugging a Web Application Example
+
+Here is an example of how you can use `spew.Sdump()` to help debug a web application. Please be sure to wrap your output using the `html.EscapeString()` function for safety reasons. You should also only use this debugging technique in a development environment, never in production.
+
+```Go
+package main
+
+import (
+    "fmt"
+    "html"
+    "net/http"
+
+    "github.com/davecgh/go-spew/spew"
+)
+
+func handler(w http.ResponseWriter, r *http.Request) {
+    w.Header().Set("Content-Type", "text/html")
+    fmt.Fprintf(w, "Hi there, %s!", r.URL.Path[1:])
+    fmt.Fprintf(w, "<!--\n" + html.EscapeString(spew.Sdump(w)) + "\n-->")
+}
+
+func main() {
+    http.HandleFunc("/", handler)
+    http.ListenAndServe(":8080", nil)
+}
+```
+
+## Sample Dump Output
+
+```
+(main.Foo) {
+ unexportedField: (*main.Bar)(0xf84002e210)({
+  flag: (main.Flag) flagTwo,
+  data: (uintptr) <nil>
+ }),
+ ExportedField: (map[interface {}]interface {}) {
+  (string) "one": (bool) true
+ }
+}
+([]uint8) {
+ 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20  |............... |
+ 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30  |!"#$%&'()*+,-./0|
+ 00000020  31 32                                             |12|
+}
+```
+
+## Sample Formatter Output
+
+Double pointer to a uint8:
+```
+	  %v: <**>5
+	 %+v: <**>(0xf8400420d0->0xf8400420c8)5
+	 %#v: (**uint8)5
+	%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
+```
+
+Pointer to circular struct with a uint8 field and a pointer to itself:
+```
+	  %v: <*>{1 <*><shown>}
+	 %+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
+	 %#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
+	%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
+```
+
+## Configuration Options
+
+Configuration of spew is handled by fields in the ConfigState type. For
+convenience, all of the top-level functions use a global state available via the
+spew.Config global.
+
+It is also possible to create a ConfigState instance that provides methods
+equivalent to the top-level functions. This allows concurrent configuration
+options. See the ConfigState documentation for more details.
+
+```
+* Indent
+	String to use for each indentation level for Dump functions.
+	It is a single space by default.  A popular alternative is "\t".
+
+* MaxDepth
+	Maximum number of levels to descend into nested data structures.
+	There is no limit by default.
+
+* DisableMethods
+	Disables invocation of error and Stringer interface methods.
+	Method invocation is enabled by default.
+
+* DisablePointerMethods
+	Disables invocation of error and Stringer interface methods on types
+	which only accept pointer receivers from non-pointer variables.  This option
+	relies on access to the unsafe package, so it will not have any effect when
+	running in environments without access to the unsafe package such as Google
+	App Engine or with the "safe" build tag specified.
+	Pointer method invocation is enabled by default.
+
+* DisablePointerAddresses
+	DisablePointerAddresses specifies whether to disable the printing of
+	pointer addresses. This is useful when diffing data structures in tests.
+
+* DisableCapacities
+	DisableCapacities specifies whether to disable the printing of capacities
+	for arrays, slices, maps and channels. This is useful when diffing data
+	structures in tests.
+
+* ContinueOnMethod
+	Enables recursion into types after invoking error and Stringer interface
+	methods. Recursion after method invocation is disabled by default.
+
+* SortKeys
+	Specifies map keys should be sorted before being printed. Use
+	this to have a more deterministic, diffable output.  Note that
+	only native types (bool, int, uint, floats, uintptr and string)
+	and types which implement error or Stringer interfaces are supported,
+	with other types sorted according to the reflect.Value.String() output
+	which guarantees display stability.  Natural map order is used by
+	default.
+
+* SpewKeys
+	SpewKeys specifies that, as a last resort attempt, map keys should be
+	spewed to strings and sorted by those strings.  This is only considered
+	if SortKeys is true.
+
+```
+
+## Unsafe Package Dependency
+
+This package relies on the unsafe package to perform some of the more advanced
+features, however it also supports a "limited" mode which allows it to work in
+environments where the unsafe package is not available.  By default, it will
+operate in this mode on Google App Engine and when compiled with GopherJS.  The
+"safe" build tag may also be specified to force the package to build without
+using the unsafe package.
+
+## License
+
+Go-spew is licensed under the [copyfree](http://copyfree.org) ISC License.
diff --git a/vendor/github.com/davecgh/go-spew/cov_report.sh b/vendor/github.com/davecgh/go-spew/cov_report.sh
new file mode 100644
index 0000000..9579497
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/cov_report.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+# This script uses gocov to generate a test coverage report.
+# The gocov tool my be obtained with the following command:
+#   go get github.com/axw/gocov/gocov
+#
+# It will be installed to $GOPATH/bin, so ensure that location is in your $PATH.
+
+# Check for gocov.
+if ! type gocov >/dev/null 2>&1; then
+	echo >&2 "This script requires the gocov tool."
+	echo >&2 "You may obtain it with the following command:"
+	echo >&2 "go get github.com/axw/gocov/gocov"
+	exit 1
+fi
+
+# Only run the cgo tests if gcc is installed.
+if type gcc >/dev/null 2>&1; then
+	(cd spew && gocov test -tags testcgo | gocov report)
+else
+	(cd spew && gocov test | gocov report)
+fi
diff --git a/vendor/github.com/davecgh/go-spew/spew/bypass.go b/vendor/github.com/davecgh/go-spew/spew/bypass.go
new file mode 100644
index 0000000..8a4a658
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/bypass.go
@@ -0,0 +1,152 @@
+// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
+//
+// Permission to use, copy, modify, and distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+// NOTE: Due to the following build constraints, this file will only be compiled
+// when the code is not running on Google App Engine, compiled by GopherJS, and
+// "-tags safe" is not added to the go build command line.  The "disableunsafe"
+// tag is deprecated and thus should not be used.
+// +build !js,!appengine,!safe,!disableunsafe
+
+package spew
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+const (
+	// UnsafeDisabled is a build-time constant which specifies whether or
+	// not access to the unsafe package is available.
+	UnsafeDisabled = false
+
+	// ptrSize is the size of a pointer on the current arch.
+	ptrSize = unsafe.Sizeof((*byte)(nil))
+)
+
+var (
+	// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
+	// internal reflect.Value fields.  These values are valid before golang
+	// commit ecccf07e7f9d which changed the format.  The are also valid
+	// after commit 82f48826c6c7 which changed the format again to mirror
+	// the original format.  Code in the init function updates these offsets
+	// as necessary.
+	offsetPtr    = uintptr(ptrSize)
+	offsetScalar = uintptr(0)
+	offsetFlag   = uintptr(ptrSize * 2)
+
+	// flagKindWidth and flagKindShift indicate various bits that the
+	// reflect package uses internally to track kind information.
+	//
+	// flagRO indicates whether or not the value field of a reflect.Value is
+	// read-only.
+	//
+	// flagIndir indicates whether the value field of a reflect.Value is
+	// the actual data or a pointer to the data.
+	//
+	// These values are valid before golang commit 90a7c3c86944 which
+	// changed their positions.  Code in the init function updates these
+	// flags as necessary.
+	flagKindWidth = uintptr(5)
+	flagKindShift = uintptr(flagKindWidth - 1)
+	flagRO        = uintptr(1 << 0)
+	flagIndir     = uintptr(1 << 1)
+)
+
+func init() {
+	// Older versions of reflect.Value stored small integers directly in the
+	// ptr field (which is named val in the older versions).  Versions
+	// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
+	// scalar for this purpose which unfortunately came before the flag
+	// field, so the offset of the flag field is different for those
+	// versions.
+	//
+	// This code constructs a new reflect.Value from a known small integer
+	// and checks if the size of the reflect.Value struct indicates it has
+	// the scalar field. When it does, the offsets are updated accordingly.
+	vv := reflect.ValueOf(0xf00)
+	if unsafe.Sizeof(vv) == (ptrSize * 4) {
+		offsetScalar = ptrSize * 2
+		offsetFlag = ptrSize * 3
+	}
+
+	// Commit 90a7c3c86944 changed the flag positions such that the low
+	// order bits are the kind.  This code extracts the kind from the flags
+	// field and ensures it's the correct type.  When it's not, the flag
+	// order has been changed to the newer format, so the flags are updated
+	// accordingly.
+	upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
+	upfv := *(*uintptr)(upf)
+	flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
+	if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
+		flagKindShift = 0
+		flagRO = 1 << 5
+		flagIndir = 1 << 6
+
+		// Commit adf9b30e5594 modified the flags to separate the
+		// flagRO flag into two bits which specifies whether or not the
+		// field is embedded.  This causes flagIndir to move over a bit
+		// and means that flagRO is the combination of either of the
+		// original flagRO bit and the new bit.
+		//
+		// This code detects the change by extracting what used to be
+		// the indirect bit to ensure it's set.  When it's not, the flag
+		// order has been changed to the newer format, so the flags are
+		// updated accordingly.
+		if upfv&flagIndir == 0 {
+			flagRO = 3 << 5
+			flagIndir = 1 << 7
+		}
+	}
+}
+
+// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
+// the typical safety restrictions preventing access to unaddressable and
+// unexported data.  It works by digging the raw pointer to the underlying
+// value out of the protected value and generating a new unprotected (unsafe)
+// reflect.Value to it.
+//
+// This allows us to check for implementations of the Stringer and error
+// interfaces to be used for pretty printing ordinarily unaddressable and
+// inaccessible values such as unexported struct fields.
+func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
+	indirects := 1
+	vt := v.Type()
+	upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
+	rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
+	if rvf&flagIndir != 0 {
+		vt = reflect.PtrTo(v.Type())
+		indirects++
+	} else if offsetScalar != 0 {
+		// The value is in the scalar field when it's not one of the
+		// reference types.
+		switch vt.Kind() {
+		case reflect.Uintptr:
+		case reflect.Chan:
+		case reflect.Func:
+		case reflect.Map:
+		case reflect.Ptr:
+		case reflect.UnsafePointer:
+		default:
+			upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
+				offsetScalar)
+		}
+	}
+
+	pv := reflect.NewAt(vt, upv)
+	rv = pv
+	for i := 0; i < indirects; i++ {
+		rv = rv.Elem()
+	}
+	return rv
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go b/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go
new file mode 100644
index 0000000..1fe3cf3
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go
@@ -0,0 +1,38 @@
+// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
+//
+// Permission to use, copy, modify, and distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+// NOTE: Due to the following build constraints, this file will only be compiled
+// when the code is running on Google App Engine, compiled by GopherJS, or
+// "-tags safe" is added to the go build command line.  The "disableunsafe"
+// tag is deprecated and thus should not be used.
+// +build js appengine safe disableunsafe
+
+package spew
+
+import "reflect"
+
+const (
+	// UnsafeDisabled is a build-time constant which specifies whether or
+	// not access to the unsafe package is available.
+	UnsafeDisabled = true
+)
+
+// unsafeReflectValue typically converts the passed reflect.Value into a one
+// that bypasses the typical safety restrictions preventing access to
+// unaddressable and unexported data.  However, doing this relies on access to
+// the unsafe package.  This is a stub version which simply returns the passed
+// reflect.Value when the unsafe package is not available.
+func unsafeReflectValue(v reflect.Value) reflect.Value {
+	return v
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/common.go b/vendor/github.com/davecgh/go-spew/spew/common.go
new file mode 100644
index 0000000..7c519ff
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/common.go
@@ -0,0 +1,341 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package spew
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"reflect"
+	"sort"
+	"strconv"
+)
+
+// Some constants in the form of bytes to avoid string overhead.  This mirrors
+// the technique used in the fmt package.
+var (
+	panicBytes            = []byte("(PANIC=")
+	plusBytes             = []byte("+")
+	iBytes                = []byte("i")
+	trueBytes             = []byte("true")
+	falseBytes            = []byte("false")
+	interfaceBytes        = []byte("(interface {})")
+	commaNewlineBytes     = []byte(",\n")
+	newlineBytes          = []byte("\n")
+	openBraceBytes        = []byte("{")
+	openBraceNewlineBytes = []byte("{\n")
+	closeBraceBytes       = []byte("}")
+	asteriskBytes         = []byte("*")
+	colonBytes            = []byte(":")
+	colonSpaceBytes       = []byte(": ")
+	openParenBytes        = []byte("(")
+	closeParenBytes       = []byte(")")
+	spaceBytes            = []byte(" ")
+	pointerChainBytes     = []byte("->")
+	nilAngleBytes         = []byte("<nil>")
+	maxNewlineBytes       = []byte("<max depth reached>\n")
+	maxShortBytes         = []byte("<max>")
+	circularBytes         = []byte("<already shown>")
+	circularShortBytes    = []byte("<shown>")
+	invalidAngleBytes     = []byte("<invalid>")
+	openBracketBytes      = []byte("[")
+	closeBracketBytes     = []byte("]")
+	percentBytes          = []byte("%")
+	precisionBytes        = []byte(".")
+	openAngleBytes        = []byte("<")
+	closeAngleBytes       = []byte(">")
+	openMapBytes          = []byte("map[")
+	closeMapBytes         = []byte("]")
+	lenEqualsBytes        = []byte("len=")
+	capEqualsBytes        = []byte("cap=")
+)
+
+// hexDigits is used to map a decimal value to a hex digit.
+var hexDigits = "0123456789abcdef"
+
+// catchPanic handles any panics that might occur during the handleMethods
+// calls.
+func catchPanic(w io.Writer, v reflect.Value) {
+	if err := recover(); err != nil {
+		w.Write(panicBytes)
+		fmt.Fprintf(w, "%v", err)
+		w.Write(closeParenBytes)
+	}
+}
+
+// handleMethods attempts to call the Error and String methods on the underlying
+// type the passed reflect.Value represents and outputes the result to Writer w.
+//
+// It handles panics in any called methods by catching and displaying the error
+// as the formatted value.
+func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
+	// We need an interface to check if the type implements the error or
+	// Stringer interface.  However, the reflect package won't give us an
+	// interface on certain things like unexported struct fields in order
+	// to enforce visibility rules.  We use unsafe, when it's available,
+	// to bypass these restrictions since this package does not mutate the
+	// values.
+	if !v.CanInterface() {
+		if UnsafeDisabled {
+			return false
+		}
+
+		v = unsafeReflectValue(v)
+	}
+
+	// Choose whether or not to do error and Stringer interface lookups against
+	// the base type or a pointer to the base type depending on settings.
+	// Technically calling one of these methods with a pointer receiver can
+	// mutate the value, however, types which choose to satisify an error or
+	// Stringer interface with a pointer receiver should not be mutating their
+	// state inside these interface methods.
+	if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
+		v = unsafeReflectValue(v)
+	}
+	if v.CanAddr() {
+		v = v.Addr()
+	}
+
+	// Is it an error or Stringer?
+	switch iface := v.Interface().(type) {
+	case error:
+		defer catchPanic(w, v)
+		if cs.ContinueOnMethod {
+			w.Write(openParenBytes)
+			w.Write([]byte(iface.Error()))
+			w.Write(closeParenBytes)
+			w.Write(spaceBytes)
+			return false
+		}
+
+		w.Write([]byte(iface.Error()))
+		return true
+
+	case fmt.Stringer:
+		defer catchPanic(w, v)
+		if cs.ContinueOnMethod {
+			w.Write(openParenBytes)
+			w.Write([]byte(iface.String()))
+			w.Write(closeParenBytes)
+			w.Write(spaceBytes)
+			return false
+		}
+		w.Write([]byte(iface.String()))
+		return true
+	}
+	return false
+}
+
+// printBool outputs a boolean value as true or false to Writer w.
+func printBool(w io.Writer, val bool) {
+	if val {
+		w.Write(trueBytes)
+	} else {
+		w.Write(falseBytes)
+	}
+}
+
+// printInt outputs a signed integer value to Writer w.
+func printInt(w io.Writer, val int64, base int) {
+	w.Write([]byte(strconv.FormatInt(val, base)))
+}
+
+// printUint outputs an unsigned integer value to Writer w.
+func printUint(w io.Writer, val uint64, base int) {
+	w.Write([]byte(strconv.FormatUint(val, base)))
+}
+
+// printFloat outputs a floating point value using the specified precision,
+// which is expected to be 32 or 64bit, to Writer w.
+func printFloat(w io.Writer, val float64, precision int) {
+	w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
+}
+
+// printComplex outputs a complex value using the specified float precision
+// for the real and imaginary parts to Writer w.
+func printComplex(w io.Writer, c complex128, floatPrecision int) {
+	r := real(c)
+	w.Write(openParenBytes)
+	w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
+	i := imag(c)
+	if i >= 0 {
+		w.Write(plusBytes)
+	}
+	w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
+	w.Write(iBytes)
+	w.Write(closeParenBytes)
+}
+
+// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
+// prefix to Writer w.
+func printHexPtr(w io.Writer, p uintptr) {
+	// Null pointer.
+	num := uint64(p)
+	if num == 0 {
+		w.Write(nilAngleBytes)
+		return
+	}
+
+	// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
+	buf := make([]byte, 18)
+
+	// It's simpler to construct the hex string right to left.
+	base := uint64(16)
+	i := len(buf) - 1
+	for num >= base {
+		buf[i] = hexDigits[num%base]
+		num /= base
+		i--
+	}
+	buf[i] = hexDigits[num]
+
+	// Add '0x' prefix.
+	i--
+	buf[i] = 'x'
+	i--
+	buf[i] = '0'
+
+	// Strip unused leading bytes.
+	buf = buf[i:]
+	w.Write(buf)
+}
+
+// valuesSorter implements sort.Interface to allow a slice of reflect.Value
+// elements to be sorted.
+type valuesSorter struct {
+	values  []reflect.Value
+	strings []string // either nil or same len and values
+	cs      *ConfigState
+}
+
+// newValuesSorter initializes a valuesSorter instance, which holds a set of
+// surrogate keys on which the data should be sorted.  It uses flags in
+// ConfigState to decide if and how to populate those surrogate keys.
+func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
+	vs := &valuesSorter{values: values, cs: cs}
+	if canSortSimply(vs.values[0].Kind()) {
+		return vs
+	}
+	if !cs.DisableMethods {
+		vs.strings = make([]string, len(values))
+		for i := range vs.values {
+			b := bytes.Buffer{}
+			if !handleMethods(cs, &b, vs.values[i]) {
+				vs.strings = nil
+				break
+			}
+			vs.strings[i] = b.String()
+		}
+	}
+	if vs.strings == nil && cs.SpewKeys {
+		vs.strings = make([]string, len(values))
+		for i := range vs.values {
+			vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
+		}
+	}
+	return vs
+}
+
+// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
+// directly, or whether it should be considered for sorting by surrogate keys
+// (if the ConfigState allows it).
+func canSortSimply(kind reflect.Kind) bool {
+	// This switch parallels valueSortLess, except for the default case.
+	switch kind {
+	case reflect.Bool:
+		return true
+	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
+		return true
+	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
+		return true
+	case reflect.Float32, reflect.Float64:
+		return true
+	case reflect.String:
+		return true
+	case reflect.Uintptr:
+		return true
+	case reflect.Array:
+		return true
+	}
+	return false
+}
+
+// Len returns the number of values in the slice.  It is part of the
+// sort.Interface implementation.
+func (s *valuesSorter) Len() int {
+	return len(s.values)
+}
+
+// Swap swaps the values at the passed indices.  It is part of the
+// sort.Interface implementation.
+func (s *valuesSorter) Swap(i, j int) {
+	s.values[i], s.values[j] = s.values[j], s.values[i]
+	if s.strings != nil {
+		s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
+	}
+}
+
+// valueSortLess returns whether the first value should sort before the second
+// value.  It is used by valueSorter.Less as part of the sort.Interface
+// implementation.
+func valueSortLess(a, b reflect.Value) bool {
+	switch a.Kind() {
+	case reflect.Bool:
+		return !a.Bool() && b.Bool()
+	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
+		return a.Int() < b.Int()
+	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
+		return a.Uint() < b.Uint()
+	case reflect.Float32, reflect.Float64:
+		return a.Float() < b.Float()
+	case reflect.String:
+		return a.String() < b.String()
+	case reflect.Uintptr:
+		return a.Uint() < b.Uint()
+	case reflect.Array:
+		// Compare the contents of both arrays.
+		l := a.Len()
+		for i := 0; i < l; i++ {
+			av := a.Index(i)
+			bv := b.Index(i)
+			if av.Interface() == bv.Interface() {
+				continue
+			}
+			return valueSortLess(av, bv)
+		}
+	}
+	return a.String() < b.String()
+}
+
+// Less returns whether the value at index i should sort before the
+// value at index j.  It is part of the sort.Interface implementation.
+func (s *valuesSorter) Less(i, j int) bool {
+	if s.strings == nil {
+		return valueSortLess(s.values[i], s.values[j])
+	}
+	return s.strings[i] < s.strings[j]
+}
+
+// sortValues is a sort function that handles both native types and any type that
+// can be converted to error or Stringer.  Other inputs are sorted according to
+// their Value.String() value to ensure display stability.
+func sortValues(values []reflect.Value, cs *ConfigState) {
+	if len(values) == 0 {
+		return
+	}
+	sort.Sort(newValuesSorter(values, cs))
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/common_test.go b/vendor/github.com/davecgh/go-spew/spew/common_test.go
new file mode 100644
index 0000000..0f5ce47
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/common_test.go
@@ -0,0 +1,298 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package spew_test
+
+import (
+	"fmt"
+	"reflect"
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+)
+
+// custom type to test Stinger interface on non-pointer receiver.
+type stringer string
+
+// String implements the Stringer interface for testing invocation of custom
+// stringers on types with non-pointer receivers.
+func (s stringer) String() string {
+	return "stringer " + string(s)
+}
+
+// custom type to test Stinger interface on pointer receiver.
+type pstringer string
+
+// String implements the Stringer interface for testing invocation of custom
+// stringers on types with only pointer receivers.
+func (s *pstringer) String() string {
+	return "stringer " + string(*s)
+}
+
+// xref1 and xref2 are cross referencing structs for testing circular reference
+// detection.
+type xref1 struct {
+	ps2 *xref2
+}
+type xref2 struct {
+	ps1 *xref1
+}
+
+// indirCir1, indirCir2, and indirCir3 are used to generate an indirect circular
+// reference for testing detection.
+type indirCir1 struct {
+	ps2 *indirCir2
+}
+type indirCir2 struct {
+	ps3 *indirCir3
+}
+type indirCir3 struct {
+	ps1 *indirCir1
+}
+
+// embed is used to test embedded structures.
+type embed struct {
+	a string
+}
+
+// embedwrap is used to test embedded structures.
+type embedwrap struct {
+	*embed
+	e *embed
+}
+
+// panicer is used to intentionally cause a panic for testing spew properly
+// handles them
+type panicer int
+
+func (p panicer) String() string {
+	panic("test panic")
+}
+
+// customError is used to test custom error interface invocation.
+type customError int
+
+func (e customError) Error() string {
+	return fmt.Sprintf("error: %d", int(e))
+}
+
+// stringizeWants converts a slice of wanted test output into a format suitable
+// for a test error message.
+func stringizeWants(wants []string) string {
+	s := ""
+	for i, want := range wants {
+		if i > 0 {
+			s += fmt.Sprintf("want%d: %s", i+1, want)
+		} else {
+			s += "want: " + want
+		}
+	}
+	return s
+}
+
+// testFailed returns whether or not a test failed by checking if the result
+// of the test is in the slice of wanted strings.
+func testFailed(result string, wants []string) bool {
+	for _, want := range wants {
+		if result == want {
+			return false
+		}
+	}
+	return true
+}
+
+type sortableStruct struct {
+	x int
+}
+
+func (ss sortableStruct) String() string {
+	return fmt.Sprintf("ss.%d", ss.x)
+}
+
+type unsortableStruct struct {
+	x int
+}
+
+type sortTestCase struct {
+	input    []reflect.Value
+	expected []reflect.Value
+}
+
+func helpTestSortValues(tests []sortTestCase, cs *spew.ConfigState, t *testing.T) {
+	getInterfaces := func(values []reflect.Value) []interface{} {
+		interfaces := []interface{}{}
+		for _, v := range values {
+			interfaces = append(interfaces, v.Interface())
+		}
+		return interfaces
+	}
+
+	for _, test := range tests {
+		spew.SortValues(test.input, cs)
+		// reflect.DeepEqual cannot really make sense of reflect.Value,
+		// probably because of all the pointer tricks. For instance,
+		// v(2.0) != v(2.0) on a 32-bits system. Turn them into interface{}
+		// instead.
+		input := getInterfaces(test.input)
+		expected := getInterfaces(test.expected)
+		if !reflect.DeepEqual(input, expected) {
+			t.Errorf("Sort mismatch:\n %v != %v", input, expected)
+		}
+	}
+}
+
+// TestSortValues ensures the sort functionality for relect.Value based sorting
+// works as intended.
+func TestSortValues(t *testing.T) {
+	v := reflect.ValueOf
+
+	a := v("a")
+	b := v("b")
+	c := v("c")
+	embedA := v(embed{"a"})
+	embedB := v(embed{"b"})
+	embedC := v(embed{"c"})
+	tests := []sortTestCase{
+		// No values.
+		{
+			[]reflect.Value{},
+			[]reflect.Value{},
+		},
+		// Bools.
+		{
+			[]reflect.Value{v(false), v(true), v(false)},
+			[]reflect.Value{v(false), v(false), v(true)},
+		},
+		// Ints.
+		{
+			[]reflect.Value{v(2), v(1), v(3)},
+			[]reflect.Value{v(1), v(2), v(3)},
+		},
+		// Uints.
+		{
+			[]reflect.Value{v(uint8(2)), v(uint8(1)), v(uint8(3))},
+			[]reflect.Value{v(uint8(1)), v(uint8(2)), v(uint8(3))},
+		},
+		// Floats.
+		{
+			[]reflect.Value{v(2.0), v(1.0), v(3.0)},
+			[]reflect.Value{v(1.0), v(2.0), v(3.0)},
+		},
+		// Strings.
+		{
+			[]reflect.Value{b, a, c},
+			[]reflect.Value{a, b, c},
+		},
+		// Array
+		{
+			[]reflect.Value{v([3]int{3, 2, 1}), v([3]int{1, 3, 2}), v([3]int{1, 2, 3})},
+			[]reflect.Value{v([3]int{1, 2, 3}), v([3]int{1, 3, 2}), v([3]int{3, 2, 1})},
+		},
+		// Uintptrs.
+		{
+			[]reflect.Value{v(uintptr(2)), v(uintptr(1)), v(uintptr(3))},
+			[]reflect.Value{v(uintptr(1)), v(uintptr(2)), v(uintptr(3))},
+		},
+		// SortableStructs.
+		{
+			// Note: not sorted - DisableMethods is set.
+			[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
+			[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
+		},
+		// UnsortableStructs.
+		{
+			// Note: not sorted - SpewKeys is false.
+			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
+			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
+		},
+		// Invalid.
+		{
+			[]reflect.Value{embedB, embedA, embedC},
+			[]reflect.Value{embedB, embedA, embedC},
+		},
+	}
+	cs := spew.ConfigState{DisableMethods: true, SpewKeys: false}
+	helpTestSortValues(tests, &cs, t)
+}
+
+// TestSortValuesWithMethods ensures the sort functionality for relect.Value
+// based sorting works as intended when using string methods.
+func TestSortValuesWithMethods(t *testing.T) {
+	v := reflect.ValueOf
+
+	a := v("a")
+	b := v("b")
+	c := v("c")
+	tests := []sortTestCase{
+		// Ints.
+		{
+			[]reflect.Value{v(2), v(1), v(3)},
+			[]reflect.Value{v(1), v(2), v(3)},
+		},
+		// Strings.
+		{
+			[]reflect.Value{b, a, c},
+			[]reflect.Value{a, b, c},
+		},
+		// SortableStructs.
+		{
+			[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
+			[]reflect.Value{v(sortableStruct{1}), v(sortableStruct{2}), v(sortableStruct{3})},
+		},
+		// UnsortableStructs.
+		{
+			// Note: not sorted - SpewKeys is false.
+			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
+			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
+		},
+	}
+	cs := spew.ConfigState{DisableMethods: false, SpewKeys: false}
+	helpTestSortValues(tests, &cs, t)
+}
+
+// TestSortValuesWithSpew ensures the sort functionality for relect.Value
+// based sorting works as intended when using spew to stringify keys.
+func TestSortValuesWithSpew(t *testing.T) {
+	v := reflect.ValueOf
+
+	a := v("a")
+	b := v("b")
+	c := v("c")
+	tests := []sortTestCase{
+		// Ints.
+		{
+			[]reflect.Value{v(2), v(1), v(3)},
+			[]reflect.Value{v(1), v(2), v(3)},
+		},
+		// Strings.
+		{
+			[]reflect.Value{b, a, c},
+			[]reflect.Value{a, b, c},
+		},
+		// SortableStructs.
+		{
+			[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
+			[]reflect.Value{v(sortableStruct{1}), v(sortableStruct{2}), v(sortableStruct{3})},
+		},
+		// UnsortableStructs.
+		{
+			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
+			[]reflect.Value{v(unsortableStruct{1}), v(unsortableStruct{2}), v(unsortableStruct{3})},
+		},
+	}
+	cs := spew.ConfigState{DisableMethods: true, SpewKeys: true}
+	helpTestSortValues(tests, &cs, t)
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/config.go b/vendor/github.com/davecgh/go-spew/spew/config.go
new file mode 100644
index 0000000..2e3d22f
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/config.go
@@ -0,0 +1,306 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package spew
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+)
+
+// ConfigState houses the configuration options used by spew to format and
+// display values.  There is a global instance, Config, that is used to control
+// all top-level Formatter and Dump functionality.  Each ConfigState instance
+// provides methods equivalent to the top-level functions.
+//
+// The zero value for ConfigState provides no indentation.  You would typically
+// want to set it to a space or a tab.
+//
+// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
+// with default settings.  See the documentation of NewDefaultConfig for default
+// values.
+type ConfigState struct {
+	// Indent specifies the string to use for each indentation level.  The
+	// global config instance that all top-level functions use set this to a
+	// single space by default.  If you would like more indentation, you might
+	// set this to a tab with "\t" or perhaps two spaces with "  ".
+	Indent string
+
+	// MaxDepth controls the maximum number of levels to descend into nested
+	// data structures.  The default, 0, means there is no limit.
+	//
+	// NOTE: Circular data structures are properly detected, so it is not
+	// necessary to set this value unless you specifically want to limit deeply
+	// nested data structures.
+	MaxDepth int
+
+	// DisableMethods specifies whether or not error and Stringer interfaces are
+	// invoked for types that implement them.
+	DisableMethods bool
+
+	// DisablePointerMethods specifies whether or not to check for and invoke
+	// error and Stringer interfaces on types which only accept a pointer
+	// receiver when the current type is not a pointer.
+	//
+	// NOTE: This might be an unsafe action since calling one of these methods
+	// with a pointer receiver could technically mutate the value, however,
+	// in practice, types which choose to satisify an error or Stringer
+	// interface with a pointer receiver should not be mutating their state
+	// inside these interface methods.  As a result, this option relies on
+	// access to the unsafe package, so it will not have any effect when
+	// running in environments without access to the unsafe package such as
+	// Google App Engine or with the "safe" build tag specified.
+	DisablePointerMethods bool
+
+	// DisablePointerAddresses specifies whether to disable the printing of
+	// pointer addresses. This is useful when diffing data structures in tests.
+	DisablePointerAddresses bool
+
+	// DisableCapacities specifies whether to disable the printing of capacities
+	// for arrays, slices, maps and channels. This is useful when diffing
+	// data structures in tests.
+	DisableCapacities bool
+
+	// ContinueOnMethod specifies whether or not recursion should continue once
+	// a custom error or Stringer interface is invoked.  The default, false,
+	// means it will print the results of invoking the custom error or Stringer
+	// interface and return immediately instead of continuing to recurse into
+	// the internals of the data type.
+	//
+	// NOTE: This flag does not have any effect if method invocation is disabled
+	// via the DisableMethods or DisablePointerMethods options.
+	ContinueOnMethod bool
+
+	// SortKeys specifies map keys should be sorted before being printed. Use
+	// this to have a more deterministic, diffable output.  Note that only
+	// native types (bool, int, uint, floats, uintptr and string) and types
+	// that support the error or Stringer interfaces (if methods are
+	// enabled) are supported, with other types sorted according to the
+	// reflect.Value.String() output which guarantees display stability.
+	SortKeys bool
+
+	// SpewKeys specifies that, as a last resort attempt, map keys should
+	// be spewed to strings and sorted by those strings.  This is only
+	// considered if SortKeys is true.
+	SpewKeys bool
+}
+
+// Config is the active configuration of the top-level functions.
+// The configuration can be changed by modifying the contents of spew.Config.
+var Config = ConfigState{Indent: " "}
+
+// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
+// passed with a Formatter interface returned by c.NewFormatter.  It returns
+// the formatted string as a value that satisfies error.  See NewFormatter
+// for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
+	return fmt.Errorf(format, c.convertArgs(a)...)
+}
+
+// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
+// passed with a Formatter interface returned by c.NewFormatter.  It returns
+// the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
+	return fmt.Fprint(w, c.convertArgs(a)...)
+}
+
+// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
+// passed with a Formatter interface returned by c.NewFormatter.  It returns
+// the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
+	return fmt.Fprintf(w, format, c.convertArgs(a)...)
+}
+
+// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
+// passed with a Formatter interface returned by c.NewFormatter.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
+	return fmt.Fprintln(w, c.convertArgs(a)...)
+}
+
+// Print is a wrapper for fmt.Print that treats each argument as if it were
+// passed with a Formatter interface returned by c.NewFormatter.  It returns
+// the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
+	return fmt.Print(c.convertArgs(a)...)
+}
+
+// Printf is a wrapper for fmt.Printf that treats each argument as if it were
+// passed with a Formatter interface returned by c.NewFormatter.  It returns
+// the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
+	return fmt.Printf(format, c.convertArgs(a)...)
+}
+
+// Println is a wrapper for fmt.Println that treats each argument as if it were
+// passed with a Formatter interface returned by c.NewFormatter.  It returns
+// the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
+	return fmt.Println(c.convertArgs(a)...)
+}
+
+// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
+// passed with a Formatter interface returned by c.NewFormatter.  It returns
+// the resulting string.  See NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Sprint(a ...interface{}) string {
+	return fmt.Sprint(c.convertArgs(a)...)
+}
+
+// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
+// passed with a Formatter interface returned by c.NewFormatter.  It returns
+// the resulting string.  See NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
+	return fmt.Sprintf(format, c.convertArgs(a)...)
+}
+
+// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
+// were passed with a Formatter interface returned by c.NewFormatter.  It
+// returns the resulting string.  See NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
+func (c *ConfigState) Sprintln(a ...interface{}) string {
+	return fmt.Sprintln(c.convertArgs(a)...)
+}
+
+/*
+NewFormatter returns a custom formatter that satisfies the fmt.Formatter
+interface.  As a result, it integrates cleanly with standard fmt package
+printing functions.  The formatter is useful for inline printing of smaller data
+types similar to the standard %v format specifier.
+
+The custom formatter only responds to the %v (most compact), %+v (adds pointer
+addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
+combinations.  Any other verbs such as %x and %q will be sent to the the
+standard fmt package for formatting.  In addition, the custom formatter ignores
+the width and precision arguments (however they will still work on the format
+specifiers not handled by the custom formatter).
+
+Typically this function shouldn't be called directly.  It is much easier to make
+use of the custom formatter by calling one of the convenience functions such as
+c.Printf, c.Println, or c.Printf.
+*/
+func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
+	return newFormatter(c, v)
+}
+
+// Fdump formats and displays the passed arguments to io.Writer w.  It formats
+// exactly the same as Dump.
+func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
+	fdump(c, w, a...)
+}
+
+/*
+Dump displays the passed parameters to standard out with newlines, customizable
+indentation, and additional debug information such as complete types and all
+pointer addresses used to indirect to the final value.  It provides the
+following features over the built-in printing facilities provided by the fmt
+package:
+
+	* Pointers are dereferenced and followed
+	* Circular data structures are detected and handled properly
+	* Custom Stringer/error interfaces are optionally invoked, including
+	  on unexported types
+	* Custom types which only implement the Stringer/error interfaces via
+	  a pointer receiver are optionally invoked when passing non-pointer
+	  variables
+	* Byte arrays and slices are dumped like the hexdump -C command which
+	  includes offsets, byte values in hex, and ASCII output
+
+The configuration options are controlled by modifying the public members
+of c.  See ConfigState for options documentation.
+
+See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
+get the formatted result as a string.
+*/
+func (c *ConfigState) Dump(a ...interface{}) {
+	fdump(c, os.Stdout, a...)
+}
+
+// Sdump returns a string with the passed arguments formatted exactly the same
+// as Dump.
+func (c *ConfigState) Sdump(a ...interface{}) string {
+	var buf bytes.Buffer
+	fdump(c, &buf, a...)
+	return buf.String()
+}
+
+// convertArgs accepts a slice of arguments and returns a slice of the same
+// length with each argument converted to a spew Formatter interface using
+// the ConfigState associated with s.
+func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
+	formatters = make([]interface{}, len(args))
+	for index, arg := range args {
+		formatters[index] = newFormatter(c, arg)
+	}
+	return formatters
+}
+
+// NewDefaultConfig returns a ConfigState with the following default settings.
+//
+// 	Indent: " "
+// 	MaxDepth: 0
+// 	DisableMethods: false
+// 	DisablePointerMethods: false
+// 	ContinueOnMethod: false
+// 	SortKeys: false
+func NewDefaultConfig() *ConfigState {
+	return &ConfigState{Indent: " "}
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/doc.go b/vendor/github.com/davecgh/go-spew/spew/doc.go
new file mode 100644
index 0000000..aacaac6
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/doc.go
@@ -0,0 +1,211 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+Package spew implements a deep pretty printer for Go data structures to aid in
+debugging.
+
+A quick overview of the additional features spew provides over the built-in
+printing facilities for Go data types are as follows:
+
+	* Pointers are dereferenced and followed
+	* Circular data structures are detected and handled properly
+	* Custom Stringer/error interfaces are optionally invoked, including
+	  on unexported types
+	* Custom types which only implement the Stringer/error interfaces via
+	  a pointer receiver are optionally invoked when passing non-pointer
+	  variables
+	* Byte arrays and slices are dumped like the hexdump -C command which
+	  includes offsets, byte values in hex, and ASCII output (only when using
+	  Dump style)
+
+There are two different approaches spew allows for dumping Go data structures:
+
+	* Dump style which prints with newlines, customizable indentation,
+	  and additional debug information such as types and all pointer addresses
+	  used to indirect to the final value
+	* A custom Formatter interface that integrates cleanly with the standard fmt
+	  package and replaces %v, %+v, %#v, and %#+v to provide inline printing
+	  similar to the default %v while providing the additional functionality
+	  outlined above and passing unsupported format verbs such as %x and %q
+	  along to fmt
+
+Quick Start
+
+This section demonstrates how to quickly get started with spew.  See the
+sections below for further details on formatting and configuration options.
+
+To dump a variable with full newlines, indentation, type, and pointer
+information use Dump, Fdump, or Sdump:
+	spew.Dump(myVar1, myVar2, ...)
+	spew.Fdump(someWriter, myVar1, myVar2, ...)
+	str := spew.Sdump(myVar1, myVar2, ...)
+
+Alternatively, if you would prefer to use format strings with a compacted inline
+printing style, use the convenience wrappers Printf, Fprintf, etc with
+%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
+%#+v (adds types and pointer addresses):
+	spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
+	spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
+	spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
+	spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
+
+Configuration Options
+
+Configuration of spew is handled by fields in the ConfigState type.  For
+convenience, all of the top-level functions use a global state available
+via the spew.Config global.
+
+It is also possible to create a ConfigState instance that provides methods
+equivalent to the top-level functions.  This allows concurrent configuration
+options.  See the ConfigState documentation for more details.
+
+The following configuration options are available:
+	* Indent
+		String to use for each indentation level for Dump functions.
+		It is a single space by default.  A popular alternative is "\t".
+
+	* MaxDepth
+		Maximum number of levels to descend into nested data structures.
+		There is no limit by default.
+
+	* DisableMethods
+		Disables invocation of error and Stringer interface methods.
+		Method invocation is enabled by default.
+
+	* DisablePointerMethods
+		Disables invocation of error and Stringer interface methods on types
+		which only accept pointer receivers from non-pointer variables.
+		Pointer method invocation is enabled by default.
+
+	* DisablePointerAddresses
+		DisablePointerAddresses specifies whether to disable the printing of
+		pointer addresses. This is useful when diffing data structures in tests.
+
+	* DisableCapacities
+		DisableCapacities specifies whether to disable the printing of
+		capacities for arrays, slices, maps and channels. This is useful when
+		diffing data structures in tests.
+
+	* ContinueOnMethod
+		Enables recursion into types after invoking error and Stringer interface
+		methods. Recursion after method invocation is disabled by default.
+
+	* SortKeys
+		Specifies map keys should be sorted before being printed. Use
+		this to have a more deterministic, diffable output.  Note that
+		only native types (bool, int, uint, floats, uintptr and string)
+		and types which implement error or Stringer interfaces are
+		supported with other types sorted according to the
+		reflect.Value.String() output which guarantees display
+		stability.  Natural map order is used by default.
+
+	* SpewKeys
+		Specifies that, as a last resort attempt, map keys should be
+		spewed to strings and sorted by those strings.  This is only
+		considered if SortKeys is true.
+
+Dump Usage
+
+Simply call spew.Dump with a list of variables you want to dump:
+
+	spew.Dump(myVar1, myVar2, ...)
+
+You may also call spew.Fdump if you would prefer to output to an arbitrary
+io.Writer.  For example, to dump to standard error:
+
+	spew.Fdump(os.Stderr, myVar1, myVar2, ...)
+
+A third option is to call spew.Sdump to get the formatted output as a string:
+
+	str := spew.Sdump(myVar1, myVar2, ...)
+
+Sample Dump Output
+
+See the Dump example for details on the setup of the types and variables being
+shown here.
+
+	(main.Foo) {
+	 unexportedField: (*main.Bar)(0xf84002e210)({
+	  flag: (main.Flag) flagTwo,
+	  data: (uintptr) <nil>
+	 }),
+	 ExportedField: (map[interface {}]interface {}) (len=1) {
+	  (string) (len=3) "one": (bool) true
+	 }
+	}
+
+Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
+command as shown.
+	([]uint8) (len=32 cap=32) {
+	 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20  |............... |
+	 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30  |!"#$%&'()*+,-./0|
+	 00000020  31 32                                             |12|
+	}
+
+Custom Formatter
+
+Spew provides a custom formatter that implements the fmt.Formatter interface
+so that it integrates cleanly with standard fmt package printing functions. The
+formatter is useful for inline printing of smaller data types similar to the
+standard %v format specifier.
+
+The custom formatter only responds to the %v (most compact), %+v (adds pointer
+addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
+combinations.  Any other verbs such as %x and %q will be sent to the the
+standard fmt package for formatting.  In addition, the custom formatter ignores
+the width and precision arguments (however they will still work on the format
+specifiers not handled by the custom formatter).
+
+Custom Formatter Usage
+
+The simplest way to make use of the spew custom formatter is to call one of the
+convenience functions such as spew.Printf, spew.Println, or spew.Printf.  The
+functions have syntax you are most likely already familiar with:
+
+	spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
+	spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
+	spew.Println(myVar, myVar2)
+	spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
+	spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
+
+See the Index for the full list convenience functions.
+
+Sample Formatter Output
+
+Double pointer to a uint8:
+	  %v: <**>5
+	 %+v: <**>(0xf8400420d0->0xf8400420c8)5
+	 %#v: (**uint8)5
+	%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
+
+Pointer to circular struct with a uint8 field and a pointer to itself:
+	  %v: <*>{1 <*><shown>}
+	 %+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
+	 %#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
+	%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
+
+See the Printf example for details on the setup of variables being shown
+here.
+
+Errors
+
+Since it is possible for custom Stringer/error interfaces to panic, spew
+detects them and handles them internally by printing the panic information
+inline with the output.  Since spew is intended to provide deep pretty printing
+capabilities on structures, it intentionally does not return any errors.
+*/
+package spew
diff --git a/vendor/github.com/davecgh/go-spew/spew/dump.go b/vendor/github.com/davecgh/go-spew/spew/dump.go
new file mode 100644
index 0000000..df1d582
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/dump.go
@@ -0,0 +1,509 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package spew
+
+import (
+	"bytes"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"os"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+var (
+	// uint8Type is a reflect.Type representing a uint8.  It is used to
+	// convert cgo types to uint8 slices for hexdumping.
+	uint8Type = reflect.TypeOf(uint8(0))
+
+	// cCharRE is a regular expression that matches a cgo char.
+	// It is used to detect character arrays to hexdump them.
+	cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
+
+	// cUnsignedCharRE is a regular expression that matches a cgo unsigned
+	// char.  It is used to detect unsigned character arrays to hexdump
+	// them.
+	cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
+
+	// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
+	// It is used to detect uint8_t arrays to hexdump them.
+	cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
+)
+
+// dumpState contains information about the state of a dump operation.
+type dumpState struct {
+	w                io.Writer
+	depth            int
+	pointers         map[uintptr]int
+	ignoreNextType   bool
+	ignoreNextIndent bool
+	cs               *ConfigState
+}
+
+// indent performs indentation according to the depth level and cs.Indent
+// option.
+func (d *dumpState) indent() {
+	if d.ignoreNextIndent {
+		d.ignoreNextIndent = false
+		return
+	}
+	d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
+}
+
+// unpackValue returns values inside of non-nil interfaces when possible.
+// This is useful for data types like structs, arrays, slices, and maps which
+// can contain varying types packed inside an interface.
+func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
+	if v.Kind() == reflect.Interface && !v.IsNil() {
+		v = v.Elem()
+	}
+	return v
+}
+
+// dumpPtr handles formatting of pointers by indirecting them as necessary.
+func (d *dumpState) dumpPtr(v reflect.Value) {
+	// Remove pointers at or below the current depth from map used to detect
+	// circular refs.
+	for k, depth := range d.pointers {
+		if depth >= d.depth {
+			delete(d.pointers, k)
+		}
+	}
+
+	// Keep list of all dereferenced pointers to show later.
+	pointerChain := make([]uintptr, 0)
+
+	// Figure out how many levels of indirection there are by dereferencing
+	// pointers and unpacking interfaces down the chain while detecting circular
+	// references.
+	nilFound := false
+	cycleFound := false
+	indirects := 0
+	ve := v
+	for ve.Kind() == reflect.Ptr {
+		if ve.IsNil() {
+			nilFound = true
+			break
+		}
+		indirects++
+		addr := ve.Pointer()
+		pointerChain = append(pointerChain, addr)
+		if pd, ok := d.pointers[addr]; ok && pd < d.depth {
+			cycleFound = true
+			indirects--
+			break
+		}
+		d.pointers[addr] = d.depth
+
+		ve = ve.Elem()
+		if ve.Kind() == reflect.Interface {
+			if ve.IsNil() {
+				nilFound = true
+				break
+			}
+			ve = ve.Elem()
+		}
+	}
+
+	// Display type information.
+	d.w.Write(openParenBytes)
+	d.w.Write(bytes.Repeat(asteriskBytes, indirects))
+	d.w.Write([]byte(ve.Type().String()))
+	d.w.Write(closeParenBytes)
+
+	// Display pointer information.
+	if !d.cs.DisablePointerAddresses && len(pointerChain) > 0 {
+		d.w.Write(openParenBytes)
+		for i, addr := range pointerChain {
+			if i > 0 {
+				d.w.Write(pointerChainBytes)
+			}
+			printHexPtr(d.w, addr)
+		}
+		d.w.Write(closeParenBytes)
+	}
+
+	// Display dereferenced value.
+	d.w.Write(openParenBytes)
+	switch {
+	case nilFound == true:
+		d.w.Write(nilAngleBytes)
+
+	case cycleFound == true:
+		d.w.Write(circularBytes)
+
+	default:
+		d.ignoreNextType = true
+		d.dump(ve)
+	}
+	d.w.Write(closeParenBytes)
+}
+
+// dumpSlice handles formatting of arrays and slices.  Byte (uint8 under
+// reflection) arrays and slices are dumped in hexdump -C fashion.
+func (d *dumpState) dumpSlice(v reflect.Value) {
+	// Determine whether this type should be hex dumped or not.  Also,
+	// for types which should be hexdumped, try to use the underlying data
+	// first, then fall back to trying to convert them to a uint8 slice.
+	var buf []uint8
+	doConvert := false
+	doHexDump := false
+	numEntries := v.Len()
+	if numEntries > 0 {
+		vt := v.Index(0).Type()
+		vts := vt.String()
+		switch {
+		// C types that need to be converted.
+		case cCharRE.MatchString(vts):
+			fallthrough
+		case cUnsignedCharRE.MatchString(vts):
+			fallthrough
+		case cUint8tCharRE.MatchString(vts):
+			doConvert = true
+
+		// Try to use existing uint8 slices and fall back to converting
+		// and copying if that fails.
+		case vt.Kind() == reflect.Uint8:
+			// We need an addressable interface to convert the type
+			// to a byte slice.  However, the reflect package won't
+			// give us an interface on certain things like
+			// unexported struct fields in order to enforce
+			// visibility rules.  We use unsafe, when available, to
+			// bypass these restrictions since this package does not
+			// mutate the values.
+			vs := v
+			if !vs.CanInterface() || !vs.CanAddr() {
+				vs = unsafeReflectValue(vs)
+			}
+			if !UnsafeDisabled {
+				vs = vs.Slice(0, numEntries)
+
+				// Use the existing uint8 slice if it can be
+				// type asserted.
+				iface := vs.Interface()
+				if slice, ok := iface.([]uint8); ok {
+					buf = slice
+					doHexDump = true
+					break
+				}
+			}
+
+			// The underlying data needs to be converted if it can't
+			// be type asserted to a uint8 slice.
+			doConvert = true
+		}
+
+		// Copy and convert the underlying type if needed.
+		if doConvert && vt.ConvertibleTo(uint8Type) {
+			// Convert and copy each element into a uint8 byte
+			// slice.
+			buf = make([]uint8, numEntries)
+			for i := 0; i < numEntries; i++ {
+				vv := v.Index(i)
+				buf[i] = uint8(vv.Convert(uint8Type).Uint())
+			}
+			doHexDump = true
+		}
+	}
+
+	// Hexdump the entire slice as needed.
+	if doHexDump {
+		indent := strings.Repeat(d.cs.Indent, d.depth)
+		str := indent + hex.Dump(buf)
+		str = strings.Replace(str, "\n", "\n"+indent, -1)
+		str = strings.TrimRight(str, d.cs.Indent)
+		d.w.Write([]byte(str))
+		return
+	}
+
+	// Recursively call dump for each item.
+	for i := 0; i < numEntries; i++ {
+		d.dump(d.unpackValue(v.Index(i)))
+		if i < (numEntries - 1) {
+			d.w.Write(commaNewlineBytes)
+		} else {
+			d.w.Write(newlineBytes)
+		}
+	}
+}
+
+// dump is the main workhorse for dumping a value.  It uses the passed reflect
+// value to figure out what kind of object we are dealing with and formats it
+// appropriately.  It is a recursive function, however circular data structures
+// are detected and handled properly.
+func (d *dumpState) dump(v reflect.Value) {
+	// Handle invalid reflect values immediately.
+	kind := v.Kind()
+	if kind == reflect.Invalid {
+		d.w.Write(invalidAngleBytes)
+		return
+	}
+
+	// Handle pointers specially.
+	if kind == reflect.Ptr {
+		d.indent()
+		d.dumpPtr(v)
+		return
+	}
+
+	// Print type information unless already handled elsewhere.
+	if !d.ignoreNextType {
+		d.indent()
+		d.w.Write(openParenBytes)
+		d.w.Write([]byte(v.Type().String()))
+		d.w.Write(closeParenBytes)
+		d.w.Write(spaceBytes)
+	}
+	d.ignoreNextType = false
+
+	// Display length and capacity if the built-in len and cap functions
+	// work with the value's kind and the len/cap itself is non-zero.
+	valueLen, valueCap := 0, 0
+	switch v.Kind() {
+	case reflect.Array, reflect.Slice, reflect.Chan:
+		valueLen, valueCap = v.Len(), v.Cap()
+	case reflect.Map, reflect.String:
+		valueLen = v.Len()
+	}
+	if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 {
+		d.w.Write(openParenBytes)
+		if valueLen != 0 {
+			d.w.Write(lenEqualsBytes)
+			printInt(d.w, int64(valueLen), 10)
+		}
+		if !d.cs.DisableCapacities && valueCap != 0 {
+			if valueLen != 0 {
+				d.w.Write(spaceBytes)
+			}
+			d.w.Write(capEqualsBytes)
+			printInt(d.w, int64(valueCap), 10)
+		}
+		d.w.Write(closeParenBytes)
+		d.w.Write(spaceBytes)
+	}
+
+	// Call Stringer/error interfaces if they exist and the handle methods flag
+	// is enabled
+	if !d.cs.DisableMethods {
+		if (kind != reflect.Invalid) && (kind != reflect.Interface) {
+			if handled := handleMethods(d.cs, d.w, v); handled {
+				return
+			}
+		}
+	}
+
+	switch kind {
+	case reflect.Invalid:
+		// Do nothing.  We should never get here since invalid has already
+		// been handled above.
+
+	case reflect.Bool:
+		printBool(d.w, v.Bool())
+
+	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
+		printInt(d.w, v.Int(), 10)
+
+	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
+		printUint(d.w, v.Uint(), 10)
+
+	case reflect.Float32:
+		printFloat(d.w, v.Float(), 32)
+
+	case reflect.Float64:
+		printFloat(d.w, v.Float(), 64)
+
+	case reflect.Complex64:
+		printComplex(d.w, v.Complex(), 32)
+
+	case reflect.Complex128:
+		printComplex(d.w, v.Complex(), 64)
+
+	case reflect.Slice:
+		if v.IsNil() {
+			d.w.Write(nilAngleBytes)
+			break
+		}
+		fallthrough
+
+	case reflect.Array:
+		d.w.Write(openBraceNewlineBytes)
+		d.depth++
+		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
+			d.indent()
+			d.w.Write(maxNewlineBytes)
+		} else {
+			d.dumpSlice(v)
+		}
+		d.depth--
+		d.indent()
+		d.w.Write(closeBraceBytes)
+
+	case reflect.String:
+		d.w.Write([]byte(strconv.Quote(v.String())))
+
+	case reflect.Interface:
+		// The only time we should get here is for nil interfaces due to
+		// unpackValue calls.
+		if v.IsNil() {
+			d.w.Write(nilAngleBytes)
+		}
+
+	case reflect.Ptr:
+		// Do nothing.  We should never get here since pointers have already
+		// been handled above.
+
+	case reflect.Map:
+		// nil maps should be indicated as different than empty maps
+		if v.IsNil() {
+			d.w.Write(nilAngleBytes)
+			break
+		}
+
+		d.w.Write(openBraceNewlineBytes)
+		d.depth++
+		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
+			d.indent()
+			d.w.Write(maxNewlineBytes)
+		} else {
+			numEntries := v.Len()
+			keys := v.MapKeys()
+			if d.cs.SortKeys {
+				sortValues(keys, d.cs)
+			}
+			for i, key := range keys {
+				d.dump(d.unpackValue(key))
+				d.w.Write(colonSpaceBytes)
+				d.ignoreNextIndent = true
+				d.dump(d.unpackValue(v.MapIndex(key)))
+				if i < (numEntries - 1) {
+					d.w.Write(commaNewlineBytes)
+				} else {
+					d.w.Write(newlineBytes)
+				}
+			}
+		}
+		d.depth--
+		d.indent()
+		d.w.Write(closeBraceBytes)
+
+	case reflect.Struct:
+		d.w.Write(openBraceNewlineBytes)
+		d.depth++
+		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
+			d.indent()
+			d.w.Write(maxNewlineBytes)
+		} else {
+			vt := v.Type()
+			numFields := v.NumField()
+			for i := 0; i < numFields; i++ {
+				d.indent()
+				vtf := vt.Field(i)
+				d.w.Write([]byte(vtf.Name))
+				d.w.Write(colonSpaceBytes)
+				d.ignoreNextIndent = true
+				d.dump(d.unpackValue(v.Field(i)))
+				if i < (numFields - 1) {
+					d.w.Write(commaNewlineBytes)
+				} else {
+					d.w.Write(newlineBytes)
+				}
+			}
+		}
+		d.depth--
+		d.indent()
+		d.w.Write(closeBraceBytes)
+
+	case reflect.Uintptr:
+		printHexPtr(d.w, uintptr(v.Uint()))
+
+	case reflect.UnsafePointer, reflect.Chan, reflect.Func:
+		printHexPtr(d.w, v.Pointer())
+
+	// There were not any other types at the time this code was written, but
+	// fall back to letting the default fmt package handle it in case any new
+	// types are added.
+	default:
+		if v.CanInterface() {
+			fmt.Fprintf(d.w, "%v", v.Interface())
+		} else {
+			fmt.Fprintf(d.w, "%v", v.String())
+		}
+	}
+}
+
+// fdump is a helper function to consolidate the logic from the various public
+// methods which take varying writers and config states.
+func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
+	for _, arg := range a {
+		if arg == nil {
+			w.Write(interfaceBytes)
+			w.Write(spaceBytes)
+			w.Write(nilAngleBytes)
+			w.Write(newlineBytes)
+			continue
+		}
+
+		d := dumpState{w: w, cs: cs}
+		d.pointers = make(map[uintptr]int)
+		d.dump(reflect.ValueOf(arg))
+		d.w.Write(newlineBytes)
+	}
+}
+
+// Fdump formats and displays the passed arguments to io.Writer w.  It formats
+// exactly the same as Dump.
+func Fdump(w io.Writer, a ...interface{}) {
+	fdump(&Config, w, a...)
+}
+
+// Sdump returns a string with the passed arguments formatted exactly the same
+// as Dump.
+func Sdump(a ...interface{}) string {
+	var buf bytes.Buffer
+	fdump(&Config, &buf, a...)
+	return buf.String()
+}
+
+/*
+Dump displays the passed parameters to standard out with newlines, customizable
+indentation, and additional debug information such as complete types and all
+pointer addresses used to indirect to the final value.  It provides the
+following features over the built-in printing facilities provided by the fmt
+package:
+
+	* Pointers are dereferenced and followed
+	* Circular data structures are detected and handled properly
+	* Custom Stringer/error interfaces are optionally invoked, including
+	  on unexported types
+	* Custom types which only implement the Stringer/error interfaces via
+	  a pointer receiver are optionally invoked when passing non-pointer
+	  variables
+	* Byte arrays and slices are dumped like the hexdump -C command which
+	  includes offsets, byte values in hex, and ASCII output
+
+The configuration options are controlled by an exported package global,
+spew.Config.  See ConfigState for options documentation.
+
+See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
+get the formatted result as a string.
+*/
+func Dump(a ...interface{}) {
+	fdump(&Config, os.Stdout, a...)
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/dump_test.go b/vendor/github.com/davecgh/go-spew/spew/dump_test.go
new file mode 100644
index 0000000..5aad9c7
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/dump_test.go
@@ -0,0 +1,1042 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+Test Summary:
+NOTE: For each test, a nil pointer, a single pointer and double pointer to the
+base test element are also tested to ensure proper indirection across all types.
+
+- Max int8, int16, int32, int64, int
+- Max uint8, uint16, uint32, uint64, uint
+- Boolean true and false
+- Standard complex64 and complex128
+- Array containing standard ints
+- Array containing type with custom formatter on pointer receiver only
+- Array containing interfaces
+- Array containing bytes
+- Slice containing standard float32 values
+- Slice containing type with custom formatter on pointer receiver only
+- Slice containing interfaces
+- Slice containing bytes
+- Nil slice
+- Standard string
+- Nil interface
+- Sub-interface
+- Map with string keys and int vals
+- Map with custom formatter type on pointer receiver only keys and vals
+- Map with interface keys and values
+- Map with nil interface value
+- Struct with primitives
+- Struct that contains another struct
+- Struct that contains custom type with Stringer pointer interface via both
+  exported and unexported fields
+- Struct that contains embedded struct and field to same struct
+- Uintptr to 0 (null pointer)
+- Uintptr address of real variable
+- Unsafe.Pointer to 0 (null pointer)
+- Unsafe.Pointer to address of real variable
+- Nil channel
+- Standard int channel
+- Function with no params and no returns
+- Function with param and no returns
+- Function with multiple params and multiple returns
+- Struct that is circular through self referencing
+- Structs that are circular through cross referencing
+- Structs that are indirectly circular
+- Type that panics in its Stringer interface
+*/
+
+package spew_test
+
+import (
+	"bytes"
+	"fmt"
+	"testing"
+	"unsafe"
+
+	"github.com/davecgh/go-spew/spew"
+)
+
+// dumpTest is used to describe a test to be performed against the Dump method.
+type dumpTest struct {
+	in    interface{}
+	wants []string
+}
+
+// dumpTests houses all of the tests to be performed against the Dump method.
+var dumpTests = make([]dumpTest, 0)
+
+// addDumpTest is a helper method to append the passed input and desired result
+// to dumpTests
+func addDumpTest(in interface{}, wants ...string) {
+	test := dumpTest{in, wants}
+	dumpTests = append(dumpTests, test)
+}
+
+func addIntDumpTests() {
+	// Max int8.
+	v := int8(127)
+	nv := (*int8)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "int8"
+	vs := "127"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Max int16.
+	v2 := int16(32767)
+	nv2 := (*int16)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "int16"
+	v2s := "32767"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
+
+	// Max int32.
+	v3 := int32(2147483647)
+	nv3 := (*int32)(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "int32"
+	v3s := "2147483647"
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
+	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
+	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
+	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
+
+	// Max int64.
+	v4 := int64(9223372036854775807)
+	nv4 := (*int64)(nil)
+	pv4 := &v4
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "int64"
+	v4s := "9223372036854775807"
+	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
+	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
+	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
+	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
+
+	// Max int.
+	v5 := int(2147483647)
+	nv5 := (*int)(nil)
+	pv5 := &v5
+	v5Addr := fmt.Sprintf("%p", pv5)
+	pv5Addr := fmt.Sprintf("%p", &pv5)
+	v5t := "int"
+	v5s := "2147483647"
+	addDumpTest(v5, "("+v5t+") "+v5s+"\n")
+	addDumpTest(pv5, "(*"+v5t+")("+v5Addr+")("+v5s+")\n")
+	addDumpTest(&pv5, "(**"+v5t+")("+pv5Addr+"->"+v5Addr+")("+v5s+")\n")
+	addDumpTest(nv5, "(*"+v5t+")(<nil>)\n")
+}
+
+func addUintDumpTests() {
+	// Max uint8.
+	v := uint8(255)
+	nv := (*uint8)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "uint8"
+	vs := "255"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Max uint16.
+	v2 := uint16(65535)
+	nv2 := (*uint16)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "uint16"
+	v2s := "65535"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
+
+	// Max uint32.
+	v3 := uint32(4294967295)
+	nv3 := (*uint32)(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "uint32"
+	v3s := "4294967295"
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
+	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
+	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
+	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
+
+	// Max uint64.
+	v4 := uint64(18446744073709551615)
+	nv4 := (*uint64)(nil)
+	pv4 := &v4
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "uint64"
+	v4s := "18446744073709551615"
+	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
+	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
+	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
+	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
+
+	// Max uint.
+	v5 := uint(4294967295)
+	nv5 := (*uint)(nil)
+	pv5 := &v5
+	v5Addr := fmt.Sprintf("%p", pv5)
+	pv5Addr := fmt.Sprintf("%p", &pv5)
+	v5t := "uint"
+	v5s := "4294967295"
+	addDumpTest(v5, "("+v5t+") "+v5s+"\n")
+	addDumpTest(pv5, "(*"+v5t+")("+v5Addr+")("+v5s+")\n")
+	addDumpTest(&pv5, "(**"+v5t+")("+pv5Addr+"->"+v5Addr+")("+v5s+")\n")
+	addDumpTest(nv5, "(*"+v5t+")(<nil>)\n")
+}
+
+func addBoolDumpTests() {
+	// Boolean true.
+	v := bool(true)
+	nv := (*bool)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "bool"
+	vs := "true"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Boolean false.
+	v2 := bool(false)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "bool"
+	v2s := "false"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+}
+
+func addFloatDumpTests() {
+	// Standard float32.
+	v := float32(3.1415)
+	nv := (*float32)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "float32"
+	vs := "3.1415"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Standard float64.
+	v2 := float64(3.1415926)
+	nv2 := (*float64)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "float64"
+	v2s := "3.1415926"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
+}
+
+func addComplexDumpTests() {
+	// Standard complex64.
+	v := complex(float32(6), -2)
+	nv := (*complex64)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "complex64"
+	vs := "(6-2i)"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Standard complex128.
+	v2 := complex(float64(-6), 2)
+	nv2 := (*complex128)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "complex128"
+	v2s := "(-6+2i)"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
+}
+
+func addArrayDumpTests() {
+	// Array containing standard ints.
+	v := [3]int{1, 2, 3}
+	vLen := fmt.Sprintf("%d", len(v))
+	vCap := fmt.Sprintf("%d", cap(v))
+	nv := (*[3]int)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "int"
+	vs := "(len=" + vLen + " cap=" + vCap + ") {\n (" + vt + ") 1,\n (" +
+		vt + ") 2,\n (" + vt + ") 3\n}"
+	addDumpTest(v, "([3]"+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*[3]"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**[3]"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*[3]"+vt+")(<nil>)\n")
+
+	// Array containing type with custom formatter on pointer receiver only.
+	v2i0 := pstringer("1")
+	v2i1 := pstringer("2")
+	v2i2 := pstringer("3")
+	v2 := [3]pstringer{v2i0, v2i1, v2i2}
+	v2i0Len := fmt.Sprintf("%d", len(v2i0))
+	v2i1Len := fmt.Sprintf("%d", len(v2i1))
+	v2i2Len := fmt.Sprintf("%d", len(v2i2))
+	v2Len := fmt.Sprintf("%d", len(v2))
+	v2Cap := fmt.Sprintf("%d", cap(v2))
+	nv2 := (*[3]pstringer)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "spew_test.pstringer"
+	v2sp := "(len=" + v2Len + " cap=" + v2Cap + ") {\n (" + v2t +
+		") (len=" + v2i0Len + ") stringer 1,\n (" + v2t +
+		") (len=" + v2i1Len + ") stringer 2,\n (" + v2t +
+		") (len=" + v2i2Len + ") " + "stringer 3\n}"
+	v2s := v2sp
+	if spew.UnsafeDisabled {
+		v2s = "(len=" + v2Len + " cap=" + v2Cap + ") {\n (" + v2t +
+			") (len=" + v2i0Len + ") \"1\",\n (" + v2t + ") (len=" +
+			v2i1Len + ") \"2\",\n (" + v2t + ") (len=" + v2i2Len +
+			") " + "\"3\"\n}"
+	}
+	addDumpTest(v2, "([3]"+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*[3]"+v2t+")("+v2Addr+")("+v2sp+")\n")
+	addDumpTest(&pv2, "(**[3]"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2sp+")\n")
+	addDumpTest(nv2, "(*[3]"+v2t+")(<nil>)\n")
+
+	// Array containing interfaces.
+	v3i0 := "one"
+	v3 := [3]interface{}{v3i0, int(2), uint(3)}
+	v3i0Len := fmt.Sprintf("%d", len(v3i0))
+	v3Len := fmt.Sprintf("%d", len(v3))
+	v3Cap := fmt.Sprintf("%d", cap(v3))
+	nv3 := (*[3]interface{})(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "[3]interface {}"
+	v3t2 := "string"
+	v3t3 := "int"
+	v3t4 := "uint"
+	v3s := "(len=" + v3Len + " cap=" + v3Cap + ") {\n (" + v3t2 + ") " +
+		"(len=" + v3i0Len + ") \"one\",\n (" + v3t3 + ") 2,\n (" +
+		v3t4 + ") 3\n}"
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
+	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
+	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
+	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
+
+	// Array containing bytes.
+	v4 := [34]byte{
+		0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+		0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
+		0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+		0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
+		0x31, 0x32,
+	}
+	v4Len := fmt.Sprintf("%d", len(v4))
+	v4Cap := fmt.Sprintf("%d", cap(v4))
+	nv4 := (*[34]byte)(nil)
+	pv4 := &v4
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "[34]uint8"
+	v4s := "(len=" + v4Len + " cap=" + v4Cap + ") " +
+		"{\n 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20" +
+		"  |............... |\n" +
+		" 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30" +
+		"  |!\"#$%&'()*+,-./0|\n" +
+		" 00000020  31 32                                           " +
+		"  |12|\n}"
+	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
+	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
+	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
+	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
+}
+
+func addSliceDumpTests() {
+	// Slice containing standard float32 values.
+	v := []float32{3.14, 6.28, 12.56}
+	vLen := fmt.Sprintf("%d", len(v))
+	vCap := fmt.Sprintf("%d", cap(v))
+	nv := (*[]float32)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "float32"
+	vs := "(len=" + vLen + " cap=" + vCap + ") {\n (" + vt + ") 3.14,\n (" +
+		vt + ") 6.28,\n (" + vt + ") 12.56\n}"
+	addDumpTest(v, "([]"+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*[]"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**[]"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*[]"+vt+")(<nil>)\n")
+
+	// Slice containing type with custom formatter on pointer receiver only.
+	v2i0 := pstringer("1")
+	v2i1 := pstringer("2")
+	v2i2 := pstringer("3")
+	v2 := []pstringer{v2i0, v2i1, v2i2}
+	v2i0Len := fmt.Sprintf("%d", len(v2i0))
+	v2i1Len := fmt.Sprintf("%d", len(v2i1))
+	v2i2Len := fmt.Sprintf("%d", len(v2i2))
+	v2Len := fmt.Sprintf("%d", len(v2))
+	v2Cap := fmt.Sprintf("%d", cap(v2))
+	nv2 := (*[]pstringer)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "spew_test.pstringer"
+	v2s := "(len=" + v2Len + " cap=" + v2Cap + ") {\n (" + v2t + ") (len=" +
+		v2i0Len + ") stringer 1,\n (" + v2t + ") (len=" + v2i1Len +
+		") stringer 2,\n (" + v2t + ") (len=" + v2i2Len + ") " +
+		"stringer 3\n}"
+	addDumpTest(v2, "([]"+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*[]"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**[]"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv2, "(*[]"+v2t+")(<nil>)\n")
+
+	// Slice containing interfaces.
+	v3i0 := "one"
+	v3 := []interface{}{v3i0, int(2), uint(3), nil}
+	v3i0Len := fmt.Sprintf("%d", len(v3i0))
+	v3Len := fmt.Sprintf("%d", len(v3))
+	v3Cap := fmt.Sprintf("%d", cap(v3))
+	nv3 := (*[]interface{})(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "[]interface {}"
+	v3t2 := "string"
+	v3t3 := "int"
+	v3t4 := "uint"
+	v3t5 := "interface {}"
+	v3s := "(len=" + v3Len + " cap=" + v3Cap + ") {\n (" + v3t2 + ") " +
+		"(len=" + v3i0Len + ") \"one\",\n (" + v3t3 + ") 2,\n (" +
+		v3t4 + ") 3,\n (" + v3t5 + ") <nil>\n}"
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
+	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
+	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
+	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
+
+	// Slice containing bytes.
+	v4 := []byte{
+		0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+		0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
+		0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+		0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
+		0x31, 0x32,
+	}
+	v4Len := fmt.Sprintf("%d", len(v4))
+	v4Cap := fmt.Sprintf("%d", cap(v4))
+	nv4 := (*[]byte)(nil)
+	pv4 := &v4
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "[]uint8"
+	v4s := "(len=" + v4Len + " cap=" + v4Cap + ") " +
+		"{\n 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20" +
+		"  |............... |\n" +
+		" 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30" +
+		"  |!\"#$%&'()*+,-./0|\n" +
+		" 00000020  31 32                                           " +
+		"  |12|\n}"
+	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
+	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
+	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
+	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
+
+	// Nil slice.
+	v5 := []int(nil)
+	nv5 := (*[]int)(nil)
+	pv5 := &v5
+	v5Addr := fmt.Sprintf("%p", pv5)
+	pv5Addr := fmt.Sprintf("%p", &pv5)
+	v5t := "[]int"
+	v5s := "<nil>"
+	addDumpTest(v5, "("+v5t+") "+v5s+"\n")
+	addDumpTest(pv5, "(*"+v5t+")("+v5Addr+")("+v5s+")\n")
+	addDumpTest(&pv5, "(**"+v5t+")("+pv5Addr+"->"+v5Addr+")("+v5s+")\n")
+	addDumpTest(nv5, "(*"+v5t+")(<nil>)\n")
+}
+
+func addStringDumpTests() {
+	// Standard string.
+	v := "test"
+	vLen := fmt.Sprintf("%d", len(v))
+	nv := (*string)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "string"
+	vs := "(len=" + vLen + ") \"test\""
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+}
+
+func addInterfaceDumpTests() {
+	// Nil interface.
+	var v interface{}
+	nv := (*interface{})(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "interface {}"
+	vs := "<nil>"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Sub-interface.
+	v2 := interface{}(uint16(65535))
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "uint16"
+	v2s := "65535"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+}
+
+func addMapDumpTests() {
+	// Map with string keys and int vals.
+	k := "one"
+	kk := "two"
+	m := map[string]int{k: 1, kk: 2}
+	klen := fmt.Sprintf("%d", len(k)) // not kLen to shut golint up
+	kkLen := fmt.Sprintf("%d", len(kk))
+	mLen := fmt.Sprintf("%d", len(m))
+	nilMap := map[string]int(nil)
+	nm := (*map[string]int)(nil)
+	pm := &m
+	mAddr := fmt.Sprintf("%p", pm)
+	pmAddr := fmt.Sprintf("%p", &pm)
+	mt := "map[string]int"
+	mt1 := "string"
+	mt2 := "int"
+	ms := "(len=" + mLen + ") {\n (" + mt1 + ") (len=" + klen + ") " +
+		"\"one\": (" + mt2 + ") 1,\n (" + mt1 + ") (len=" + kkLen +
+		") \"two\": (" + mt2 + ") 2\n}"
+	ms2 := "(len=" + mLen + ") {\n (" + mt1 + ") (len=" + kkLen + ") " +
+		"\"two\": (" + mt2 + ") 2,\n (" + mt1 + ") (len=" + klen +
+		") \"one\": (" + mt2 + ") 1\n}"
+	addDumpTest(m, "("+mt+") "+ms+"\n", "("+mt+") "+ms2+"\n")
+	addDumpTest(pm, "(*"+mt+")("+mAddr+")("+ms+")\n",
+		"(*"+mt+")("+mAddr+")("+ms2+")\n")
+	addDumpTest(&pm, "(**"+mt+")("+pmAddr+"->"+mAddr+")("+ms+")\n",
+		"(**"+mt+")("+pmAddr+"->"+mAddr+")("+ms2+")\n")
+	addDumpTest(nm, "(*"+mt+")(<nil>)\n")
+	addDumpTest(nilMap, "("+mt+") <nil>\n")
+
+	// Map with custom formatter type on pointer receiver only keys and vals.
+	k2 := pstringer("one")
+	v2 := pstringer("1")
+	m2 := map[pstringer]pstringer{k2: v2}
+	k2Len := fmt.Sprintf("%d", len(k2))
+	v2Len := fmt.Sprintf("%d", len(v2))
+	m2Len := fmt.Sprintf("%d", len(m2))
+	nilMap2 := map[pstringer]pstringer(nil)
+	nm2 := (*map[pstringer]pstringer)(nil)
+	pm2 := &m2
+	m2Addr := fmt.Sprintf("%p", pm2)
+	pm2Addr := fmt.Sprintf("%p", &pm2)
+	m2t := "map[spew_test.pstringer]spew_test.pstringer"
+	m2t1 := "spew_test.pstringer"
+	m2t2 := "spew_test.pstringer"
+	m2s := "(len=" + m2Len + ") {\n (" + m2t1 + ") (len=" + k2Len + ") " +
+		"stringer one: (" + m2t2 + ") (len=" + v2Len + ") stringer 1\n}"
+	if spew.UnsafeDisabled {
+		m2s = "(len=" + m2Len + ") {\n (" + m2t1 + ") (len=" + k2Len +
+			") " + "\"one\": (" + m2t2 + ") (len=" + v2Len +
+			") \"1\"\n}"
+	}
+	addDumpTest(m2, "("+m2t+") "+m2s+"\n")
+	addDumpTest(pm2, "(*"+m2t+")("+m2Addr+")("+m2s+")\n")
+	addDumpTest(&pm2, "(**"+m2t+")("+pm2Addr+"->"+m2Addr+")("+m2s+")\n")
+	addDumpTest(nm2, "(*"+m2t+")(<nil>)\n")
+	addDumpTest(nilMap2, "("+m2t+") <nil>\n")
+
+	// Map with interface keys and values.
+	k3 := "one"
+	k3Len := fmt.Sprintf("%d", len(k3))
+	m3 := map[interface{}]interface{}{k3: 1}
+	m3Len := fmt.Sprintf("%d", len(m3))
+	nilMap3 := map[interface{}]interface{}(nil)
+	nm3 := (*map[interface{}]interface{})(nil)
+	pm3 := &m3
+	m3Addr := fmt.Sprintf("%p", pm3)
+	pm3Addr := fmt.Sprintf("%p", &pm3)
+	m3t := "map[interface {}]interface {}"
+	m3t1 := "string"
+	m3t2 := "int"
+	m3s := "(len=" + m3Len + ") {\n (" + m3t1 + ") (len=" + k3Len + ") " +
+		"\"one\": (" + m3t2 + ") 1\n}"
+	addDumpTest(m3, "("+m3t+") "+m3s+"\n")
+	addDumpTest(pm3, "(*"+m3t+")("+m3Addr+")("+m3s+")\n")
+	addDumpTest(&pm3, "(**"+m3t+")("+pm3Addr+"->"+m3Addr+")("+m3s+")\n")
+	addDumpTest(nm3, "(*"+m3t+")(<nil>)\n")
+	addDumpTest(nilMap3, "("+m3t+") <nil>\n")
+
+	// Map with nil interface value.
+	k4 := "nil"
+	k4Len := fmt.Sprintf("%d", len(k4))
+	m4 := map[string]interface{}{k4: nil}
+	m4Len := fmt.Sprintf("%d", len(m4))
+	nilMap4 := map[string]interface{}(nil)
+	nm4 := (*map[string]interface{})(nil)
+	pm4 := &m4
+	m4Addr := fmt.Sprintf("%p", pm4)
+	pm4Addr := fmt.Sprintf("%p", &pm4)
+	m4t := "map[string]interface {}"
+	m4t1 := "string"
+	m4t2 := "interface {}"
+	m4s := "(len=" + m4Len + ") {\n (" + m4t1 + ") (len=" + k4Len + ")" +
+		" \"nil\": (" + m4t2 + ") <nil>\n}"
+	addDumpTest(m4, "("+m4t+") "+m4s+"\n")
+	addDumpTest(pm4, "(*"+m4t+")("+m4Addr+")("+m4s+")\n")
+	addDumpTest(&pm4, "(**"+m4t+")("+pm4Addr+"->"+m4Addr+")("+m4s+")\n")
+	addDumpTest(nm4, "(*"+m4t+")(<nil>)\n")
+	addDumpTest(nilMap4, "("+m4t+") <nil>\n")
+}
+
+func addStructDumpTests() {
+	// Struct with primitives.
+	type s1 struct {
+		a int8
+		b uint8
+	}
+	v := s1{127, 255}
+	nv := (*s1)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "spew_test.s1"
+	vt2 := "int8"
+	vt3 := "uint8"
+	vs := "{\n a: (" + vt2 + ") 127,\n b: (" + vt3 + ") 255\n}"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Struct that contains another struct.
+	type s2 struct {
+		s1 s1
+		b  bool
+	}
+	v2 := s2{s1{127, 255}, true}
+	nv2 := (*s2)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "spew_test.s2"
+	v2t2 := "spew_test.s1"
+	v2t3 := "int8"
+	v2t4 := "uint8"
+	v2t5 := "bool"
+	v2s := "{\n s1: (" + v2t2 + ") {\n  a: (" + v2t3 + ") 127,\n  b: (" +
+		v2t4 + ") 255\n },\n b: (" + v2t5 + ") true\n}"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
+
+	// Struct that contains custom type with Stringer pointer interface via both
+	// exported and unexported fields.
+	type s3 struct {
+		s pstringer
+		S pstringer
+	}
+	v3 := s3{"test", "test2"}
+	nv3 := (*s3)(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "spew_test.s3"
+	v3t2 := "spew_test.pstringer"
+	v3s := "{\n s: (" + v3t2 + ") (len=4) stringer test,\n S: (" + v3t2 +
+		") (len=5) stringer test2\n}"
+	v3sp := v3s
+	if spew.UnsafeDisabled {
+		v3s = "{\n s: (" + v3t2 + ") (len=4) \"test\",\n S: (" +
+			v3t2 + ") (len=5) \"test2\"\n}"
+		v3sp = "{\n s: (" + v3t2 + ") (len=4) \"test\",\n S: (" +
+			v3t2 + ") (len=5) stringer test2\n}"
+	}
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
+	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3sp+")\n")
+	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3sp+")\n")
+	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
+
+	// Struct that contains embedded struct and field to same struct.
+	e := embed{"embedstr"}
+	eLen := fmt.Sprintf("%d", len("embedstr"))
+	v4 := embedwrap{embed: &e, e: &e}
+	nv4 := (*embedwrap)(nil)
+	pv4 := &v4
+	eAddr := fmt.Sprintf("%p", &e)
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "spew_test.embedwrap"
+	v4t2 := "spew_test.embed"
+	v4t3 := "string"
+	v4s := "{\n embed: (*" + v4t2 + ")(" + eAddr + ")({\n  a: (" + v4t3 +
+		") (len=" + eLen + ") \"embedstr\"\n }),\n e: (*" + v4t2 +
+		")(" + eAddr + ")({\n  a: (" + v4t3 + ") (len=" + eLen + ")" +
+		" \"embedstr\"\n })\n}"
+	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
+	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
+	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
+	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
+}
+
+func addUintptrDumpTests() {
+	// Null pointer.
+	v := uintptr(0)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "uintptr"
+	vs := "<nil>"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+
+	// Address of real variable.
+	i := 1
+	v2 := uintptr(unsafe.Pointer(&i))
+	nv2 := (*uintptr)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "uintptr"
+	v2s := fmt.Sprintf("%p", &i)
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
+}
+
+func addUnsafePointerDumpTests() {
+	// Null pointer.
+	v := unsafe.Pointer(uintptr(0))
+	nv := (*unsafe.Pointer)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "unsafe.Pointer"
+	vs := "<nil>"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Address of real variable.
+	i := 1
+	v2 := unsafe.Pointer(&i)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "unsafe.Pointer"
+	v2s := fmt.Sprintf("%p", &i)
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+}
+
+func addChanDumpTests() {
+	// Nil channel.
+	var v chan int
+	pv := &v
+	nv := (*chan int)(nil)
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "chan int"
+	vs := "<nil>"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Real channel.
+	v2 := make(chan int)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "chan int"
+	v2s := fmt.Sprintf("%p", v2)
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+}
+
+func addFuncDumpTests() {
+	// Function with no params and no returns.
+	v := addIntDumpTests
+	nv := (*func())(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "func()"
+	vs := fmt.Sprintf("%p", v)
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+
+	// Function with param and no returns.
+	v2 := TestDump
+	nv2 := (*func(*testing.T))(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "func(*testing.T)"
+	v2s := fmt.Sprintf("%p", v2)
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
+	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
+
+	// Function with multiple params and multiple returns.
+	var v3 = func(i int, s string) (b bool, err error) {
+		return true, nil
+	}
+	nv3 := (*func(int, string) (bool, error))(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "func(int, string) (bool, error)"
+	v3s := fmt.Sprintf("%p", v3)
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
+	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
+	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
+	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
+}
+
+func addCircularDumpTests() {
+	// Struct that is circular through self referencing.
+	type circular struct {
+		c *circular
+	}
+	v := circular{nil}
+	v.c = &v
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "spew_test.circular"
+	vs := "{\n c: (*" + vt + ")(" + vAddr + ")({\n  c: (*" + vt + ")(" +
+		vAddr + ")(<already shown>)\n })\n}"
+	vs2 := "{\n c: (*" + vt + ")(" + vAddr + ")(<already shown>)\n}"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs2+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs2+")\n")
+
+	// Structs that are circular through cross referencing.
+	v2 := xref1{nil}
+	ts2 := xref2{&v2}
+	v2.ps2 = &ts2
+	pv2 := &v2
+	ts2Addr := fmt.Sprintf("%p", &ts2)
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "spew_test.xref1"
+	v2t2 := "spew_test.xref2"
+	v2s := "{\n ps2: (*" + v2t2 + ")(" + ts2Addr + ")({\n  ps1: (*" + v2t +
+		")(" + v2Addr + ")({\n   ps2: (*" + v2t2 + ")(" + ts2Addr +
+		")(<already shown>)\n  })\n })\n}"
+	v2s2 := "{\n ps2: (*" + v2t2 + ")(" + ts2Addr + ")({\n  ps1: (*" + v2t +
+		")(" + v2Addr + ")(<already shown>)\n })\n}"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s2+")\n")
+	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s2+")\n")
+
+	// Structs that are indirectly circular.
+	v3 := indirCir1{nil}
+	tic2 := indirCir2{nil}
+	tic3 := indirCir3{&v3}
+	tic2.ps3 = &tic3
+	v3.ps2 = &tic2
+	pv3 := &v3
+	tic2Addr := fmt.Sprintf("%p", &tic2)
+	tic3Addr := fmt.Sprintf("%p", &tic3)
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "spew_test.indirCir1"
+	v3t2 := "spew_test.indirCir2"
+	v3t3 := "spew_test.indirCir3"
+	v3s := "{\n ps2: (*" + v3t2 + ")(" + tic2Addr + ")({\n  ps3: (*" + v3t3 +
+		")(" + tic3Addr + ")({\n   ps1: (*" + v3t + ")(" + v3Addr +
+		")({\n    ps2: (*" + v3t2 + ")(" + tic2Addr +
+		")(<already shown>)\n   })\n  })\n })\n}"
+	v3s2 := "{\n ps2: (*" + v3t2 + ")(" + tic2Addr + ")({\n  ps3: (*" + v3t3 +
+		")(" + tic3Addr + ")({\n   ps1: (*" + v3t + ")(" + v3Addr +
+		")(<already shown>)\n  })\n })\n}"
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
+	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s2+")\n")
+	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s2+")\n")
+}
+
+func addPanicDumpTests() {
+	// Type that panics in its Stringer interface.
+	v := panicer(127)
+	nv := (*panicer)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "spew_test.panicer"
+	vs := "(PANIC=test panic)127"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+}
+
+func addErrorDumpTests() {
+	// Type that has a custom Error interface.
+	v := customError(127)
+	nv := (*customError)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "spew_test.customError"
+	vs := "error: 127"
+	addDumpTest(v, "("+vt+") "+vs+"\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
+	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
+}
+
+// TestDump executes all of the tests described by dumpTests.
+func TestDump(t *testing.T) {
+	// Setup tests.
+	addIntDumpTests()
+	addUintDumpTests()
+	addBoolDumpTests()
+	addFloatDumpTests()
+	addComplexDumpTests()
+	addArrayDumpTests()
+	addSliceDumpTests()
+	addStringDumpTests()
+	addInterfaceDumpTests()
+	addMapDumpTests()
+	addStructDumpTests()
+	addUintptrDumpTests()
+	addUnsafePointerDumpTests()
+	addChanDumpTests()
+	addFuncDumpTests()
+	addCircularDumpTests()
+	addPanicDumpTests()
+	addErrorDumpTests()
+	addCgoDumpTests()
+
+	t.Logf("Running %d tests", len(dumpTests))
+	for i, test := range dumpTests {
+		buf := new(bytes.Buffer)
+		spew.Fdump(buf, test.in)
+		s := buf.String()
+		if testFailed(s, test.wants) {
+			t.Errorf("Dump #%d\n got: %s %s", i, s, stringizeWants(test.wants))
+			continue
+		}
+	}
+}
+
+func TestDumpSortedKeys(t *testing.T) {
+	cfg := spew.ConfigState{SortKeys: true}
+	s := cfg.Sdump(map[int]string{1: "1", 3: "3", 2: "2"})
+	expected := "(map[int]string) (len=3) {\n(int) 1: (string) (len=1) " +
+		"\"1\",\n(int) 2: (string) (len=1) \"2\",\n(int) 3: (string) " +
+		"(len=1) \"3\"\n" +
+		"}\n"
+	if s != expected {
+		t.Errorf("Sorted keys mismatch:\n  %v %v", s, expected)
+	}
+
+	s = cfg.Sdump(map[stringer]int{"1": 1, "3": 3, "2": 2})
+	expected = "(map[spew_test.stringer]int) (len=3) {\n" +
+		"(spew_test.stringer) (len=1) stringer 1: (int) 1,\n" +
+		"(spew_test.stringer) (len=1) stringer 2: (int) 2,\n" +
+		"(spew_test.stringer) (len=1) stringer 3: (int) 3\n" +
+		"}\n"
+	if s != expected {
+		t.Errorf("Sorted keys mismatch:\n  %v %v", s, expected)
+	}
+
+	s = cfg.Sdump(map[pstringer]int{pstringer("1"): 1, pstringer("3"): 3, pstringer("2"): 2})
+	expected = "(map[spew_test.pstringer]int) (len=3) {\n" +
+		"(spew_test.pstringer) (len=1) stringer 1: (int) 1,\n" +
+		"(spew_test.pstringer) (len=1) stringer 2: (int) 2,\n" +
+		"(spew_test.pstringer) (len=1) stringer 3: (int) 3\n" +
+		"}\n"
+	if spew.UnsafeDisabled {
+		expected = "(map[spew_test.pstringer]int) (len=3) {\n" +
+			"(spew_test.pstringer) (len=1) \"1\": (int) 1,\n" +
+			"(spew_test.pstringer) (len=1) \"2\": (int) 2,\n" +
+			"(spew_test.pstringer) (len=1) \"3\": (int) 3\n" +
+			"}\n"
+	}
+	if s != expected {
+		t.Errorf("Sorted keys mismatch:\n  %v %v", s, expected)
+	}
+
+	s = cfg.Sdump(map[customError]int{customError(1): 1, customError(3): 3, customError(2): 2})
+	expected = "(map[spew_test.customError]int) (len=3) {\n" +
+		"(spew_test.customError) error: 1: (int) 1,\n" +
+		"(spew_test.customError) error: 2: (int) 2,\n" +
+		"(spew_test.customError) error: 3: (int) 3\n" +
+		"}\n"
+	if s != expected {
+		t.Errorf("Sorted keys mismatch:\n  %v %v", s, expected)
+	}
+
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/dumpcgo_test.go b/vendor/github.com/davecgh/go-spew/spew/dumpcgo_test.go
new file mode 100644
index 0000000..6ab1808
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/dumpcgo_test.go
@@ -0,0 +1,99 @@
+// Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+//
+// Permission to use, copy, modify, and distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+// NOTE: Due to the following build constraints, this file will only be compiled
+// when both cgo is supported and "-tags testcgo" is added to the go test
+// command line.  This means the cgo tests are only added (and hence run) when
+// specifially requested.  This configuration is used because spew itself
+// does not require cgo to run even though it does handle certain cgo types
+// specially.  Rather than forcing all clients to require cgo and an external
+// C compiler just to run the tests, this scheme makes them optional.
+// +build cgo,testcgo
+
+package spew_test
+
+import (
+	"fmt"
+
+	"github.com/davecgh/go-spew/spew/testdata"
+)
+
+func addCgoDumpTests() {
+	// C char pointer.
+	v := testdata.GetCgoCharPointer()
+	nv := testdata.GetCgoNullCharPointer()
+	pv := &v
+	vcAddr := fmt.Sprintf("%p", v)
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "*testdata._Ctype_char"
+	vs := "116"
+	addDumpTest(v, "("+vt+")("+vcAddr+")("+vs+")\n")
+	addDumpTest(pv, "(*"+vt+")("+vAddr+"->"+vcAddr+")("+vs+")\n")
+	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+"->"+vcAddr+")("+vs+")\n")
+	addDumpTest(nv, "("+vt+")(<nil>)\n")
+
+	// C char array.
+	v2, v2l, v2c := testdata.GetCgoCharArray()
+	v2Len := fmt.Sprintf("%d", v2l)
+	v2Cap := fmt.Sprintf("%d", v2c)
+	v2t := "[6]testdata._Ctype_char"
+	v2s := "(len=" + v2Len + " cap=" + v2Cap + ") " +
+		"{\n 00000000  74 65 73 74 32 00                               " +
+		"  |test2.|\n}"
+	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
+
+	// C unsigned char array.
+	v3, v3l, v3c := testdata.GetCgoUnsignedCharArray()
+	v3Len := fmt.Sprintf("%d", v3l)
+	v3Cap := fmt.Sprintf("%d", v3c)
+	v3t := "[6]testdata._Ctype_unsignedchar"
+	v3t2 := "[6]testdata._Ctype_uchar"
+	v3s := "(len=" + v3Len + " cap=" + v3Cap + ") " +
+		"{\n 00000000  74 65 73 74 33 00                               " +
+		"  |test3.|\n}"
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n", "("+v3t2+") "+v3s+"\n")
+
+	// C signed char array.
+	v4, v4l, v4c := testdata.GetCgoSignedCharArray()
+	v4Len := fmt.Sprintf("%d", v4l)
+	v4Cap := fmt.Sprintf("%d", v4c)
+	v4t := "[6]testdata._Ctype_schar"
+	v4t2 := "testdata._Ctype_schar"
+	v4s := "(len=" + v4Len + " cap=" + v4Cap + ") " +
+		"{\n (" + v4t2 + ") 116,\n (" + v4t2 + ") 101,\n (" + v4t2 +
+		") 115,\n (" + v4t2 + ") 116,\n (" + v4t2 + ") 52,\n (" + v4t2 +
+		") 0\n}"
+	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
+
+	// C uint8_t array.
+	v5, v5l, v5c := testdata.GetCgoUint8tArray()
+	v5Len := fmt.Sprintf("%d", v5l)
+	v5Cap := fmt.Sprintf("%d", v5c)
+	v5t := "[6]testdata._Ctype_uint8_t"
+	v5s := "(len=" + v5Len + " cap=" + v5Cap + ") " +
+		"{\n 00000000  74 65 73 74 35 00                               " +
+		"  |test5.|\n}"
+	addDumpTest(v5, "("+v5t+") "+v5s+"\n")
+
+	// C typedefed unsigned char array.
+	v6, v6l, v6c := testdata.GetCgoTypdefedUnsignedCharArray()
+	v6Len := fmt.Sprintf("%d", v6l)
+	v6Cap := fmt.Sprintf("%d", v6c)
+	v6t := "[6]testdata._Ctype_custom_uchar_t"
+	v6s := "(len=" + v6Len + " cap=" + v6Cap + ") " +
+		"{\n 00000000  74 65 73 74 36 00                               " +
+		"  |test6.|\n}"
+	addDumpTest(v6, "("+v6t+") "+v6s+"\n")
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/dumpnocgo_test.go b/vendor/github.com/davecgh/go-spew/spew/dumpnocgo_test.go
new file mode 100644
index 0000000..52a0971
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/dumpnocgo_test.go
@@ -0,0 +1,26 @@
+// Copyright (c) 2013 Dave Collins <dave@davec.name>
+//
+// Permission to use, copy, modify, and distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+// NOTE: Due to the following build constraints, this file will only be compiled
+// when either cgo is not supported or "-tags testcgo" is not added to the go
+// test command line.  This file intentionally does not setup any cgo tests in
+// this scenario.
+// +build !cgo !testcgo
+
+package spew_test
+
+func addCgoDumpTests() {
+	// Don't add any tests for cgo since this file is only compiled when
+	// there should not be any cgo tests.
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/example_test.go b/vendor/github.com/davecgh/go-spew/spew/example_test.go
new file mode 100644
index 0000000..c6ec8c6
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/example_test.go
@@ -0,0 +1,226 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package spew_test
+
+import (
+	"fmt"
+
+	"github.com/davecgh/go-spew/spew"
+)
+
+type Flag int
+
+const (
+	flagOne Flag = iota
+	flagTwo
+)
+
+var flagStrings = map[Flag]string{
+	flagOne: "flagOne",
+	flagTwo: "flagTwo",
+}
+
+func (f Flag) String() string {
+	if s, ok := flagStrings[f]; ok {
+		return s
+	}
+	return fmt.Sprintf("Unknown flag (%d)", int(f))
+}
+
+type Bar struct {
+	data uintptr
+}
+
+type Foo struct {
+	unexportedField Bar
+	ExportedField   map[interface{}]interface{}
+}
+
+// This example demonstrates how to use Dump to dump variables to stdout.
+func ExampleDump() {
+	// The following package level declarations are assumed for this example:
+	/*
+		type Flag int
+
+		const (
+			flagOne Flag = iota
+			flagTwo
+		)
+
+		var flagStrings = map[Flag]string{
+			flagOne: "flagOne",
+			flagTwo: "flagTwo",
+		}
+
+		func (f Flag) String() string {
+			if s, ok := flagStrings[f]; ok {
+				return s
+			}
+			return fmt.Sprintf("Unknown flag (%d)", int(f))
+		}
+
+		type Bar struct {
+			data uintptr
+		}
+
+		type Foo struct {
+			unexportedField Bar
+			ExportedField   map[interface{}]interface{}
+		}
+	*/
+
+	// Setup some sample data structures for the example.
+	bar := Bar{uintptr(0)}
+	s1 := Foo{bar, map[interface{}]interface{}{"one": true}}
+	f := Flag(5)
+	b := []byte{
+		0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+		0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
+		0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+		0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
+		0x31, 0x32,
+	}
+
+	// Dump!
+	spew.Dump(s1, f, b)
+
+	// Output:
+	// (spew_test.Foo) {
+	//  unexportedField: (spew_test.Bar) {
+	//   data: (uintptr) <nil>
+	//  },
+	//  ExportedField: (map[interface {}]interface {}) (len=1) {
+	//   (string) (len=3) "one": (bool) true
+	//  }
+	// }
+	// (spew_test.Flag) Unknown flag (5)
+	// ([]uint8) (len=34 cap=34) {
+	//  00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20  |............... |
+	//  00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30  |!"#$%&'()*+,-./0|
+	//  00000020  31 32                                             |12|
+	// }
+	//
+}
+
+// This example demonstrates how to use Printf to display a variable with a
+// format string and inline formatting.
+func ExamplePrintf() {
+	// Create a double pointer to a uint 8.
+	ui8 := uint8(5)
+	pui8 := &ui8
+	ppui8 := &pui8
+
+	// Create a circular data type.
+	type circular struct {
+		ui8 uint8
+		c   *circular
+	}
+	c := circular{ui8: 1}
+	c.c = &c
+
+	// Print!
+	spew.Printf("ppui8: %v\n", ppui8)
+	spew.Printf("circular: %v\n", c)
+
+	// Output:
+	// ppui8: <**>5
+	// circular: {1 <*>{1 <*><shown>}}
+}
+
+// This example demonstrates how to use a ConfigState.
+func ExampleConfigState() {
+	// Modify the indent level of the ConfigState only.  The global
+	// configuration is not modified.
+	scs := spew.ConfigState{Indent: "\t"}
+
+	// Output using the ConfigState instance.
+	v := map[string]int{"one": 1}
+	scs.Printf("v: %v\n", v)
+	scs.Dump(v)
+
+	// Output:
+	// v: map[one:1]
+	// (map[string]int) (len=1) {
+	// 	(string) (len=3) "one": (int) 1
+	// }
+}
+
+// This example demonstrates how to use ConfigState.Dump to dump variables to
+// stdout
+func ExampleConfigState_Dump() {
+	// See the top-level Dump example for details on the types used in this
+	// example.
+
+	// Create two ConfigState instances with different indentation.
+	scs := spew.ConfigState{Indent: "\t"}
+	scs2 := spew.ConfigState{Indent: " "}
+
+	// Setup some sample data structures for the example.
+	bar := Bar{uintptr(0)}
+	s1 := Foo{bar, map[interface{}]interface{}{"one": true}}
+
+	// Dump using the ConfigState instances.
+	scs.Dump(s1)
+	scs2.Dump(s1)
+
+	// Output:
+	// (spew_test.Foo) {
+	// 	unexportedField: (spew_test.Bar) {
+	// 		data: (uintptr) <nil>
+	// 	},
+	// 	ExportedField: (map[interface {}]interface {}) (len=1) {
+	//		(string) (len=3) "one": (bool) true
+	// 	}
+	// }
+	// (spew_test.Foo) {
+	//  unexportedField: (spew_test.Bar) {
+	//   data: (uintptr) <nil>
+	//  },
+	//  ExportedField: (map[interface {}]interface {}) (len=1) {
+	//   (string) (len=3) "one": (bool) true
+	//  }
+	// }
+	//
+}
+
+// This example demonstrates how to use ConfigState.Printf to display a variable
+// with a format string and inline formatting.
+func ExampleConfigState_Printf() {
+	// See the top-level Dump example for details on the types used in this
+	// example.
+
+	// Create two ConfigState instances and modify the method handling of the
+	// first ConfigState only.
+	scs := spew.NewDefaultConfig()
+	scs2 := spew.NewDefaultConfig()
+	scs.DisableMethods = true
+
+	// Alternatively
+	// scs := spew.ConfigState{Indent: " ", DisableMethods: true}
+	// scs2 := spew.ConfigState{Indent: " "}
+
+	// This is of type Flag which implements a Stringer and has raw value 1.
+	f := flagTwo
+
+	// Dump using the ConfigState instances.
+	scs.Printf("f: %v\n", f)
+	scs2.Printf("f: %v\n", f)
+
+	// Output:
+	// f: 1
+	// f: flagTwo
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/format.go b/vendor/github.com/davecgh/go-spew/spew/format.go
new file mode 100644
index 0000000..c49875b
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/format.go
@@ -0,0 +1,419 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package spew
+
+import (
+	"bytes"
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+)
+
+// supportedFlags is a list of all the character flags supported by fmt package.
+const supportedFlags = "0-+# "
+
+// formatState implements the fmt.Formatter interface and contains information
+// about the state of a formatting operation.  The NewFormatter function can
+// be used to get a new Formatter which can be used directly as arguments
+// in standard fmt package printing calls.
+type formatState struct {
+	value          interface{}
+	fs             fmt.State
+	depth          int
+	pointers       map[uintptr]int
+	ignoreNextType bool
+	cs             *ConfigState
+}
+
+// buildDefaultFormat recreates the original format string without precision
+// and width information to pass in to fmt.Sprintf in the case of an
+// unrecognized type.  Unless new types are added to the language, this
+// function won't ever be called.
+func (f *formatState) buildDefaultFormat() (format string) {
+	buf := bytes.NewBuffer(percentBytes)
+
+	for _, flag := range supportedFlags {
+		if f.fs.Flag(int(flag)) {
+			buf.WriteRune(flag)
+		}
+	}
+
+	buf.WriteRune('v')
+
+	format = buf.String()
+	return format
+}
+
+// constructOrigFormat recreates the original format string including precision
+// and width information to pass along to the standard fmt package.  This allows
+// automatic deferral of all format strings this package doesn't support.
+func (f *formatState) constructOrigFormat(verb rune) (format string) {
+	buf := bytes.NewBuffer(percentBytes)
+
+	for _, flag := range supportedFlags {
+		if f.fs.Flag(int(flag)) {
+			buf.WriteRune(flag)
+		}
+	}
+
+	if width, ok := f.fs.Width(); ok {
+		buf.WriteString(strconv.Itoa(width))
+	}
+
+	if precision, ok := f.fs.Precision(); ok {
+		buf.Write(precisionBytes)
+		buf.WriteString(strconv.Itoa(precision))
+	}
+
+	buf.WriteRune(verb)
+
+	format = buf.String()
+	return format
+}
+
+// unpackValue returns values inside of non-nil interfaces when possible and
+// ensures that types for values which have been unpacked from an interface
+// are displayed when the show types flag is also set.
+// This is useful for data types like structs, arrays, slices, and maps which
+// can contain varying types packed inside an interface.
+func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
+	if v.Kind() == reflect.Interface {
+		f.ignoreNextType = false
+		if !v.IsNil() {
+			v = v.Elem()
+		}
+	}
+	return v
+}
+
+// formatPtr handles formatting of pointers by indirecting them as necessary.
+func (f *formatState) formatPtr(v reflect.Value) {
+	// Display nil if top level pointer is nil.
+	showTypes := f.fs.Flag('#')
+	if v.IsNil() && (!showTypes || f.ignoreNextType) {
+		f.fs.Write(nilAngleBytes)
+		return
+	}
+
+	// Remove pointers at or below the current depth from map used to detect
+	// circular refs.
+	for k, depth := range f.pointers {
+		if depth >= f.depth {
+			delete(f.pointers, k)
+		}
+	}
+
+	// Keep list of all dereferenced pointers to possibly show later.
+	pointerChain := make([]uintptr, 0)
+
+	// Figure out how many levels of indirection there are by derferencing
+	// pointers and unpacking interfaces down the chain while detecting circular
+	// references.
+	nilFound := false
+	cycleFound := false
+	indirects := 0
+	ve := v
+	for ve.Kind() == reflect.Ptr {
+		if ve.IsNil() {
+			nilFound = true
+			break
+		}
+		indirects++
+		addr := ve.Pointer()
+		pointerChain = append(pointerChain, addr)
+		if pd, ok := f.pointers[addr]; ok && pd < f.depth {
+			cycleFound = true
+			indirects--
+			break
+		}
+		f.pointers[addr] = f.depth
+
+		ve = ve.Elem()
+		if ve.Kind() == reflect.Interface {
+			if ve.IsNil() {
+				nilFound = true
+				break
+			}
+			ve = ve.Elem()
+		}
+	}
+
+	// Display type or indirection level depending on flags.
+	if showTypes && !f.ignoreNextType {
+		f.fs.Write(openParenBytes)
+		f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
+		f.fs.Write([]byte(ve.Type().String()))
+		f.fs.Write(closeParenBytes)
+	} else {
+		if nilFound || cycleFound {
+			indirects += strings.Count(ve.Type().String(), "*")
+		}
+		f.fs.Write(openAngleBytes)
+		f.fs.Write([]byte(strings.Repeat("*", indirects)))
+		f.fs.Write(closeAngleBytes)
+	}
+
+	// Display pointer information depending on flags.
+	if f.fs.Flag('+') && (len(pointerChain) > 0) {
+		f.fs.Write(openParenBytes)
+		for i, addr := range pointerChain {
+			if i > 0 {
+				f.fs.Write(pointerChainBytes)
+			}
+			printHexPtr(f.fs, addr)
+		}
+		f.fs.Write(closeParenBytes)
+	}
+
+	// Display dereferenced value.
+	switch {
+	case nilFound == true:
+		f.fs.Write(nilAngleBytes)
+
+	case cycleFound == true:
+		f.fs.Write(circularShortBytes)
+
+	default:
+		f.ignoreNextType = true
+		f.format(ve)
+	}
+}
+
+// format is the main workhorse for providing the Formatter interface.  It
+// uses the passed reflect value to figure out what kind of object we are
+// dealing with and formats it appropriately.  It is a recursive function,
+// however circular data structures are detected and handled properly.
+func (f *formatState) format(v reflect.Value) {
+	// Handle invalid reflect values immediately.
+	kind := v.Kind()
+	if kind == reflect.Invalid {
+		f.fs.Write(invalidAngleBytes)
+		return
+	}
+
+	// Handle pointers specially.
+	if kind == reflect.Ptr {
+		f.formatPtr(v)
+		return
+	}
+
+	// Print type information unless already handled elsewhere.
+	if !f.ignoreNextType && f.fs.Flag('#') {
+		f.fs.Write(openParenBytes)
+		f.fs.Write([]byte(v.Type().String()))
+		f.fs.Write(closeParenBytes)
+	}
+	f.ignoreNextType = false
+
+	// Call Stringer/error interfaces if they exist and the handle methods
+	// flag is enabled.
+	if !f.cs.DisableMethods {
+		if (kind != reflect.Invalid) && (kind != reflect.Interface) {
+			if handled := handleMethods(f.cs, f.fs, v); handled {
+				return
+			}
+		}
+	}
+
+	switch kind {
+	case reflect.Invalid:
+		// Do nothing.  We should never get here since invalid has already
+		// been handled above.
+
+	case reflect.Bool:
+		printBool(f.fs, v.Bool())
+
+	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
+		printInt(f.fs, v.Int(), 10)
+
+	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
+		printUint(f.fs, v.Uint(), 10)
+
+	case reflect.Float32:
+		printFloat(f.fs, v.Float(), 32)
+
+	case reflect.Float64:
+		printFloat(f.fs, v.Float(), 64)
+
+	case reflect.Complex64:
+		printComplex(f.fs, v.Complex(), 32)
+
+	case reflect.Complex128:
+		printComplex(f.fs, v.Complex(), 64)
+
+	case reflect.Slice:
+		if v.IsNil() {
+			f.fs.Write(nilAngleBytes)
+			break
+		}
+		fallthrough
+
+	case reflect.Array:
+		f.fs.Write(openBracketBytes)
+		f.depth++
+		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
+			f.fs.Write(maxShortBytes)
+		} else {
+			numEntries := v.Len()
+			for i := 0; i < numEntries; i++ {
+				if i > 0 {
+					f.fs.Write(spaceBytes)
+				}
+				f.ignoreNextType = true
+				f.format(f.unpackValue(v.Index(i)))
+			}
+		}
+		f.depth--
+		f.fs.Write(closeBracketBytes)
+
+	case reflect.String:
+		f.fs.Write([]byte(v.String()))
+
+	case reflect.Interface:
+		// The only time we should get here is for nil interfaces due to
+		// unpackValue calls.
+		if v.IsNil() {
+			f.fs.Write(nilAngleBytes)
+		}
+
+	case reflect.Ptr:
+		// Do nothing.  We should never get here since pointers have already
+		// been handled above.
+
+	case reflect.Map:
+		// nil maps should be indicated as different than empty maps
+		if v.IsNil() {
+			f.fs.Write(nilAngleBytes)
+			break
+		}
+
+		f.fs.Write(openMapBytes)
+		f.depth++
+		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
+			f.fs.Write(maxShortBytes)
+		} else {
+			keys := v.MapKeys()
+			if f.cs.SortKeys {
+				sortValues(keys, f.cs)
+			}
+			for i, key := range keys {
+				if i > 0 {
+					f.fs.Write(spaceBytes)
+				}
+				f.ignoreNextType = true
+				f.format(f.unpackValue(key))
+				f.fs.Write(colonBytes)
+				f.ignoreNextType = true
+				f.format(f.unpackValue(v.MapIndex(key)))
+			}
+		}
+		f.depth--
+		f.fs.Write(closeMapBytes)
+
+	case reflect.Struct:
+		numFields := v.NumField()
+		f.fs.Write(openBraceBytes)
+		f.depth++
+		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
+			f.fs.Write(maxShortBytes)
+		} else {
+			vt := v.Type()
+			for i := 0; i < numFields; i++ {
+				if i > 0 {
+					f.fs.Write(spaceBytes)
+				}
+				vtf := vt.Field(i)
+				if f.fs.Flag('+') || f.fs.Flag('#') {
+					f.fs.Write([]byte(vtf.Name))
+					f.fs.Write(colonBytes)
+				}
+				f.format(f.unpackValue(v.Field(i)))
+			}
+		}
+		f.depth--
+		f.fs.Write(closeBraceBytes)
+
+	case reflect.Uintptr:
+		printHexPtr(f.fs, uintptr(v.Uint()))
+
+	case reflect.UnsafePointer, reflect.Chan, reflect.Func:
+		printHexPtr(f.fs, v.Pointer())
+
+	// There were not any other types at the time this code was written, but
+	// fall back to letting the default fmt package handle it if any get added.
+	default:
+		format := f.buildDefaultFormat()
+		if v.CanInterface() {
+			fmt.Fprintf(f.fs, format, v.Interface())
+		} else {
+			fmt.Fprintf(f.fs, format, v.String())
+		}
+	}
+}
+
+// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
+// details.
+func (f *formatState) Format(fs fmt.State, verb rune) {
+	f.fs = fs
+
+	// Use standard formatting for verbs that are not v.
+	if verb != 'v' {
+		format := f.constructOrigFormat(verb)
+		fmt.Fprintf(fs, format, f.value)
+		return
+	}
+
+	if f.value == nil {
+		if fs.Flag('#') {
+			fs.Write(interfaceBytes)
+		}
+		fs.Write(nilAngleBytes)
+		return
+	}
+
+	f.format(reflect.ValueOf(f.value))
+}
+
+// newFormatter is a helper function to consolidate the logic from the various
+// public methods which take varying config states.
+func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
+	fs := &formatState{value: v, cs: cs}
+	fs.pointers = make(map[uintptr]int)
+	return fs
+}
+
+/*
+NewFormatter returns a custom formatter that satisfies the fmt.Formatter
+interface.  As a result, it integrates cleanly with standard fmt package
+printing functions.  The formatter is useful for inline printing of smaller data
+types similar to the standard %v format specifier.
+
+The custom formatter only responds to the %v (most compact), %+v (adds pointer
+addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
+combinations.  Any other verbs such as %x and %q will be sent to the the
+standard fmt package for formatting.  In addition, the custom formatter ignores
+the width and precision arguments (however they will still work on the format
+specifiers not handled by the custom formatter).
+
+Typically this function shouldn't be called directly.  It is much easier to make
+use of the custom formatter by calling one of the convenience functions such as
+Printf, Println, or Fprintf.
+*/
+func NewFormatter(v interface{}) fmt.Formatter {
+	return newFormatter(&Config, v)
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/format_test.go b/vendor/github.com/davecgh/go-spew/spew/format_test.go
new file mode 100644
index 0000000..f9b93ab
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/format_test.go
@@ -0,0 +1,1558 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+Test Summary:
+NOTE: For each test, a nil pointer, a single pointer and double pointer to the
+base test element are also tested to ensure proper indirection across all types.
+
+- Max int8, int16, int32, int64, int
+- Max uint8, uint16, uint32, uint64, uint
+- Boolean true and false
+- Standard complex64 and complex128
+- Array containing standard ints
+- Array containing type with custom formatter on pointer receiver only
+- Array containing interfaces
+- Slice containing standard float32 values
+- Slice containing type with custom formatter on pointer receiver only
+- Slice containing interfaces
+- Nil slice
+- Standard string
+- Nil interface
+- Sub-interface
+- Map with string keys and int vals
+- Map with custom formatter type on pointer receiver only keys and vals
+- Map with interface keys and values
+- Map with nil interface value
+- Struct with primitives
+- Struct that contains another struct
+- Struct that contains custom type with Stringer pointer interface via both
+  exported and unexported fields
+- Struct that contains embedded struct and field to same struct
+- Uintptr to 0 (null pointer)
+- Uintptr address of real variable
+- Unsafe.Pointer to 0 (null pointer)
+- Unsafe.Pointer to address of real variable
+- Nil channel
+- Standard int channel
+- Function with no params and no returns
+- Function with param and no returns
+- Function with multiple params and multiple returns
+- Struct that is circular through self referencing
+- Structs that are circular through cross referencing
+- Structs that are indirectly circular
+- Type that panics in its Stringer interface
+- Type that has a custom Error interface
+- %x passthrough with uint
+- %#x passthrough with uint
+- %f passthrough with precision
+- %f passthrough with width and precision
+- %d passthrough with width
+- %q passthrough with string
+*/
+
+package spew_test
+
+import (
+	"bytes"
+	"fmt"
+	"testing"
+	"unsafe"
+
+	"github.com/davecgh/go-spew/spew"
+)
+
+// formatterTest is used to describe a test to be performed against NewFormatter.
+type formatterTest struct {
+	format string
+	in     interface{}
+	wants  []string
+}
+
+// formatterTests houses all of the tests to be performed against NewFormatter.
+var formatterTests = make([]formatterTest, 0)
+
+// addFormatterTest is a helper method to append the passed input and desired
+// result to formatterTests.
+func addFormatterTest(format string, in interface{}, wants ...string) {
+	test := formatterTest{format, in, wants}
+	formatterTests = append(formatterTests, test)
+}
+
+func addIntFormatterTests() {
+	// Max int8.
+	v := int8(127)
+	nv := (*int8)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "int8"
+	vs := "127"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Max int16.
+	v2 := int16(32767)
+	nv2 := (*int16)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "int16"
+	v2s := "32767"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+
+	// Max int32.
+	v3 := int32(2147483647)
+	nv3 := (*int32)(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "int32"
+	v3s := "2147483647"
+	addFormatterTest("%v", v3, v3s)
+	addFormatterTest("%v", pv3, "<*>"+v3s)
+	addFormatterTest("%v", &pv3, "<**>"+v3s)
+	addFormatterTest("%v", nv3, "<nil>")
+	addFormatterTest("%+v", v3, v3s)
+	addFormatterTest("%+v", pv3, "<*>("+v3Addr+")"+v3s)
+	addFormatterTest("%+v", &pv3, "<**>("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%#v", v3, "("+v3t+")"+v3s)
+	addFormatterTest("%#v", pv3, "(*"+v3t+")"+v3s)
+	addFormatterTest("%#v", &pv3, "(**"+v3t+")"+v3s)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+	addFormatterTest("%#+v", v3, "("+v3t+")"+v3s)
+	addFormatterTest("%#+v", pv3, "(*"+v3t+")("+v3Addr+")"+v3s)
+	addFormatterTest("%#+v", &pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+
+	// Max int64.
+	v4 := int64(9223372036854775807)
+	nv4 := (*int64)(nil)
+	pv4 := &v4
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "int64"
+	v4s := "9223372036854775807"
+	addFormatterTest("%v", v4, v4s)
+	addFormatterTest("%v", pv4, "<*>"+v4s)
+	addFormatterTest("%v", &pv4, "<**>"+v4s)
+	addFormatterTest("%v", nv4, "<nil>")
+	addFormatterTest("%+v", v4, v4s)
+	addFormatterTest("%+v", pv4, "<*>("+v4Addr+")"+v4s)
+	addFormatterTest("%+v", &pv4, "<**>("+pv4Addr+"->"+v4Addr+")"+v4s)
+	addFormatterTest("%+v", nv4, "<nil>")
+	addFormatterTest("%#v", v4, "("+v4t+")"+v4s)
+	addFormatterTest("%#v", pv4, "(*"+v4t+")"+v4s)
+	addFormatterTest("%#v", &pv4, "(**"+v4t+")"+v4s)
+	addFormatterTest("%#v", nv4, "(*"+v4t+")"+"<nil>")
+	addFormatterTest("%#+v", v4, "("+v4t+")"+v4s)
+	addFormatterTest("%#+v", pv4, "(*"+v4t+")("+v4Addr+")"+v4s)
+	addFormatterTest("%#+v", &pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")"+v4s)
+	addFormatterTest("%#+v", nv4, "(*"+v4t+")"+"<nil>")
+
+	// Max int.
+	v5 := int(2147483647)
+	nv5 := (*int)(nil)
+	pv5 := &v5
+	v5Addr := fmt.Sprintf("%p", pv5)
+	pv5Addr := fmt.Sprintf("%p", &pv5)
+	v5t := "int"
+	v5s := "2147483647"
+	addFormatterTest("%v", v5, v5s)
+	addFormatterTest("%v", pv5, "<*>"+v5s)
+	addFormatterTest("%v", &pv5, "<**>"+v5s)
+	addFormatterTest("%v", nv5, "<nil>")
+	addFormatterTest("%+v", v5, v5s)
+	addFormatterTest("%+v", pv5, "<*>("+v5Addr+")"+v5s)
+	addFormatterTest("%+v", &pv5, "<**>("+pv5Addr+"->"+v5Addr+")"+v5s)
+	addFormatterTest("%+v", nv5, "<nil>")
+	addFormatterTest("%#v", v5, "("+v5t+")"+v5s)
+	addFormatterTest("%#v", pv5, "(*"+v5t+")"+v5s)
+	addFormatterTest("%#v", &pv5, "(**"+v5t+")"+v5s)
+	addFormatterTest("%#v", nv5, "(*"+v5t+")"+"<nil>")
+	addFormatterTest("%#+v", v5, "("+v5t+")"+v5s)
+	addFormatterTest("%#+v", pv5, "(*"+v5t+")("+v5Addr+")"+v5s)
+	addFormatterTest("%#+v", &pv5, "(**"+v5t+")("+pv5Addr+"->"+v5Addr+")"+v5s)
+	addFormatterTest("%#+v", nv5, "(*"+v5t+")"+"<nil>")
+}
+
+func addUintFormatterTests() {
+	// Max uint8.
+	v := uint8(255)
+	nv := (*uint8)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "uint8"
+	vs := "255"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Max uint16.
+	v2 := uint16(65535)
+	nv2 := (*uint16)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "uint16"
+	v2s := "65535"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+
+	// Max uint32.
+	v3 := uint32(4294967295)
+	nv3 := (*uint32)(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "uint32"
+	v3s := "4294967295"
+	addFormatterTest("%v", v3, v3s)
+	addFormatterTest("%v", pv3, "<*>"+v3s)
+	addFormatterTest("%v", &pv3, "<**>"+v3s)
+	addFormatterTest("%v", nv3, "<nil>")
+	addFormatterTest("%+v", v3, v3s)
+	addFormatterTest("%+v", pv3, "<*>("+v3Addr+")"+v3s)
+	addFormatterTest("%+v", &pv3, "<**>("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%#v", v3, "("+v3t+")"+v3s)
+	addFormatterTest("%#v", pv3, "(*"+v3t+")"+v3s)
+	addFormatterTest("%#v", &pv3, "(**"+v3t+")"+v3s)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+	addFormatterTest("%#+v", v3, "("+v3t+")"+v3s)
+	addFormatterTest("%#+v", pv3, "(*"+v3t+")("+v3Addr+")"+v3s)
+	addFormatterTest("%#+v", &pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+
+	// Max uint64.
+	v4 := uint64(18446744073709551615)
+	nv4 := (*uint64)(nil)
+	pv4 := &v4
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "uint64"
+	v4s := "18446744073709551615"
+	addFormatterTest("%v", v4, v4s)
+	addFormatterTest("%v", pv4, "<*>"+v4s)
+	addFormatterTest("%v", &pv4, "<**>"+v4s)
+	addFormatterTest("%v", nv4, "<nil>")
+	addFormatterTest("%+v", v4, v4s)
+	addFormatterTest("%+v", pv4, "<*>("+v4Addr+")"+v4s)
+	addFormatterTest("%+v", &pv4, "<**>("+pv4Addr+"->"+v4Addr+")"+v4s)
+	addFormatterTest("%+v", nv4, "<nil>")
+	addFormatterTest("%#v", v4, "("+v4t+")"+v4s)
+	addFormatterTest("%#v", pv4, "(*"+v4t+")"+v4s)
+	addFormatterTest("%#v", &pv4, "(**"+v4t+")"+v4s)
+	addFormatterTest("%#v", nv4, "(*"+v4t+")"+"<nil>")
+	addFormatterTest("%#+v", v4, "("+v4t+")"+v4s)
+	addFormatterTest("%#+v", pv4, "(*"+v4t+")("+v4Addr+")"+v4s)
+	addFormatterTest("%#+v", &pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")"+v4s)
+	addFormatterTest("%#+v", nv4, "(*"+v4t+")"+"<nil>")
+
+	// Max uint.
+	v5 := uint(4294967295)
+	nv5 := (*uint)(nil)
+	pv5 := &v5
+	v5Addr := fmt.Sprintf("%p", pv5)
+	pv5Addr := fmt.Sprintf("%p", &pv5)
+	v5t := "uint"
+	v5s := "4294967295"
+	addFormatterTest("%v", v5, v5s)
+	addFormatterTest("%v", pv5, "<*>"+v5s)
+	addFormatterTest("%v", &pv5, "<**>"+v5s)
+	addFormatterTest("%v", nv5, "<nil>")
+	addFormatterTest("%+v", v5, v5s)
+	addFormatterTest("%+v", pv5, "<*>("+v5Addr+")"+v5s)
+	addFormatterTest("%+v", &pv5, "<**>("+pv5Addr+"->"+v5Addr+")"+v5s)
+	addFormatterTest("%+v", nv5, "<nil>")
+	addFormatterTest("%#v", v5, "("+v5t+")"+v5s)
+	addFormatterTest("%#v", pv5, "(*"+v5t+")"+v5s)
+	addFormatterTest("%#v", &pv5, "(**"+v5t+")"+v5s)
+	addFormatterTest("%#v", nv5, "(*"+v5t+")"+"<nil>")
+	addFormatterTest("%#+v", v5, "("+v5t+")"+v5s)
+	addFormatterTest("%#+v", pv5, "(*"+v5t+")("+v5Addr+")"+v5s)
+	addFormatterTest("%#+v", &pv5, "(**"+v5t+")("+pv5Addr+"->"+v5Addr+")"+v5s)
+	addFormatterTest("%#v", nv5, "(*"+v5t+")"+"<nil>")
+}
+
+func addBoolFormatterTests() {
+	// Boolean true.
+	v := bool(true)
+	nv := (*bool)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "bool"
+	vs := "true"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Boolean false.
+	v2 := bool(false)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "bool"
+	v2s := "false"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+}
+
+func addFloatFormatterTests() {
+	// Standard float32.
+	v := float32(3.1415)
+	nv := (*float32)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "float32"
+	vs := "3.1415"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Standard float64.
+	v2 := float64(3.1415926)
+	nv2 := (*float64)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "float64"
+	v2s := "3.1415926"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+}
+
+func addComplexFormatterTests() {
+	// Standard complex64.
+	v := complex(float32(6), -2)
+	nv := (*complex64)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "complex64"
+	vs := "(6-2i)"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Standard complex128.
+	v2 := complex(float64(-6), 2)
+	nv2 := (*complex128)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "complex128"
+	v2s := "(-6+2i)"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+}
+
+func addArrayFormatterTests() {
+	// Array containing standard ints.
+	v := [3]int{1, 2, 3}
+	nv := (*[3]int)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "[3]int"
+	vs := "[1 2 3]"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Array containing type with custom formatter on pointer receiver only.
+	v2 := [3]pstringer{"1", "2", "3"}
+	nv2 := (*[3]pstringer)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "[3]spew_test.pstringer"
+	v2sp := "[stringer 1 stringer 2 stringer 3]"
+	v2s := v2sp
+	if spew.UnsafeDisabled {
+		v2s = "[1 2 3]"
+	}
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2sp)
+	addFormatterTest("%v", &pv2, "<**>"+v2sp)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2sp)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2sp)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2sp)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2sp)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2sp)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2sp)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+
+	// Array containing interfaces.
+	v3 := [3]interface{}{"one", int(2), uint(3)}
+	nv3 := (*[3]interface{})(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "[3]interface {}"
+	v3t2 := "string"
+	v3t3 := "int"
+	v3t4 := "uint"
+	v3s := "[one 2 3]"
+	v3s2 := "[(" + v3t2 + ")one (" + v3t3 + ")2 (" + v3t4 + ")3]"
+	addFormatterTest("%v", v3, v3s)
+	addFormatterTest("%v", pv3, "<*>"+v3s)
+	addFormatterTest("%v", &pv3, "<**>"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%+v", v3, v3s)
+	addFormatterTest("%+v", pv3, "<*>("+v3Addr+")"+v3s)
+	addFormatterTest("%+v", &pv3, "<**>("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%#v", v3, "("+v3t+")"+v3s2)
+	addFormatterTest("%#v", pv3, "(*"+v3t+")"+v3s2)
+	addFormatterTest("%#v", &pv3, "(**"+v3t+")"+v3s2)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+	addFormatterTest("%#+v", v3, "("+v3t+")"+v3s2)
+	addFormatterTest("%#+v", pv3, "(*"+v3t+")("+v3Addr+")"+v3s2)
+	addFormatterTest("%#+v", &pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")"+v3s2)
+	addFormatterTest("%#+v", nv3, "(*"+v3t+")"+"<nil>")
+}
+
+func addSliceFormatterTests() {
+	// Slice containing standard float32 values.
+	v := []float32{3.14, 6.28, 12.56}
+	nv := (*[]float32)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "[]float32"
+	vs := "[3.14 6.28 12.56]"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Slice containing type with custom formatter on pointer receiver only.
+	v2 := []pstringer{"1", "2", "3"}
+	nv2 := (*[]pstringer)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "[]spew_test.pstringer"
+	v2s := "[stringer 1 stringer 2 stringer 3]"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+
+	// Slice containing interfaces.
+	v3 := []interface{}{"one", int(2), uint(3), nil}
+	nv3 := (*[]interface{})(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "[]interface {}"
+	v3t2 := "string"
+	v3t3 := "int"
+	v3t4 := "uint"
+	v3t5 := "interface {}"
+	v3s := "[one 2 3 <nil>]"
+	v3s2 := "[(" + v3t2 + ")one (" + v3t3 + ")2 (" + v3t4 + ")3 (" + v3t5 +
+		")<nil>]"
+	addFormatterTest("%v", v3, v3s)
+	addFormatterTest("%v", pv3, "<*>"+v3s)
+	addFormatterTest("%v", &pv3, "<**>"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%+v", v3, v3s)
+	addFormatterTest("%+v", pv3, "<*>("+v3Addr+")"+v3s)
+	addFormatterTest("%+v", &pv3, "<**>("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%#v", v3, "("+v3t+")"+v3s2)
+	addFormatterTest("%#v", pv3, "(*"+v3t+")"+v3s2)
+	addFormatterTest("%#v", &pv3, "(**"+v3t+")"+v3s2)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+	addFormatterTest("%#+v", v3, "("+v3t+")"+v3s2)
+	addFormatterTest("%#+v", pv3, "(*"+v3t+")("+v3Addr+")"+v3s2)
+	addFormatterTest("%#+v", &pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")"+v3s2)
+	addFormatterTest("%#+v", nv3, "(*"+v3t+")"+"<nil>")
+
+	// Nil slice.
+	var v4 []int
+	nv4 := (*[]int)(nil)
+	pv4 := &v4
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "[]int"
+	v4s := "<nil>"
+	addFormatterTest("%v", v4, v4s)
+	addFormatterTest("%v", pv4, "<*>"+v4s)
+	addFormatterTest("%v", &pv4, "<**>"+v4s)
+	addFormatterTest("%+v", nv4, "<nil>")
+	addFormatterTest("%+v", v4, v4s)
+	addFormatterTest("%+v", pv4, "<*>("+v4Addr+")"+v4s)
+	addFormatterTest("%+v", &pv4, "<**>("+pv4Addr+"->"+v4Addr+")"+v4s)
+	addFormatterTest("%+v", nv4, "<nil>")
+	addFormatterTest("%#v", v4, "("+v4t+")"+v4s)
+	addFormatterTest("%#v", pv4, "(*"+v4t+")"+v4s)
+	addFormatterTest("%#v", &pv4, "(**"+v4t+")"+v4s)
+	addFormatterTest("%#v", nv4, "(*"+v4t+")"+"<nil>")
+	addFormatterTest("%#+v", v4, "("+v4t+")"+v4s)
+	addFormatterTest("%#+v", pv4, "(*"+v4t+")("+v4Addr+")"+v4s)
+	addFormatterTest("%#+v", &pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")"+v4s)
+	addFormatterTest("%#+v", nv4, "(*"+v4t+")"+"<nil>")
+}
+
+func addStringFormatterTests() {
+	// Standard string.
+	v := "test"
+	nv := (*string)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "string"
+	vs := "test"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+}
+
+func addInterfaceFormatterTests() {
+	// Nil interface.
+	var v interface{}
+	nv := (*interface{})(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "interface {}"
+	vs := "<nil>"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Sub-interface.
+	v2 := interface{}(uint16(65535))
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "uint16"
+	v2s := "65535"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+}
+
+func addMapFormatterTests() {
+	// Map with string keys and int vals.
+	v := map[string]int{"one": 1, "two": 2}
+	nilMap := map[string]int(nil)
+	nv := (*map[string]int)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "map[string]int"
+	vs := "map[one:1 two:2]"
+	vs2 := "map[two:2 one:1]"
+	addFormatterTest("%v", v, vs, vs2)
+	addFormatterTest("%v", pv, "<*>"+vs, "<*>"+vs2)
+	addFormatterTest("%v", &pv, "<**>"+vs, "<**>"+vs2)
+	addFormatterTest("%+v", nilMap, "<nil>")
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs, vs2)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs, "<*>("+vAddr+")"+vs2)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs,
+		"<**>("+pvAddr+"->"+vAddr+")"+vs2)
+	addFormatterTest("%+v", nilMap, "<nil>")
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs, "("+vt+")"+vs2)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs, "(*"+vt+")"+vs2)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs, "(**"+vt+")"+vs2)
+	addFormatterTest("%#v", nilMap, "("+vt+")"+"<nil>")
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs, "("+vt+")"+vs2)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs,
+		"(*"+vt+")("+vAddr+")"+vs2)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs,
+		"(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs2)
+	addFormatterTest("%#+v", nilMap, "("+vt+")"+"<nil>")
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Map with custom formatter type on pointer receiver only keys and vals.
+	v2 := map[pstringer]pstringer{"one": "1"}
+	nv2 := (*map[pstringer]pstringer)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "map[spew_test.pstringer]spew_test.pstringer"
+	v2s := "map[stringer one:stringer 1]"
+	if spew.UnsafeDisabled {
+		v2s = "map[one:1]"
+	}
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+
+	// Map with interface keys and values.
+	v3 := map[interface{}]interface{}{"one": 1}
+	nv3 := (*map[interface{}]interface{})(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "map[interface {}]interface {}"
+	v3t1 := "string"
+	v3t2 := "int"
+	v3s := "map[one:1]"
+	v3s2 := "map[(" + v3t1 + ")one:(" + v3t2 + ")1]"
+	addFormatterTest("%v", v3, v3s)
+	addFormatterTest("%v", pv3, "<*>"+v3s)
+	addFormatterTest("%v", &pv3, "<**>"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%+v", v3, v3s)
+	addFormatterTest("%+v", pv3, "<*>("+v3Addr+")"+v3s)
+	addFormatterTest("%+v", &pv3, "<**>("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%#v", v3, "("+v3t+")"+v3s2)
+	addFormatterTest("%#v", pv3, "(*"+v3t+")"+v3s2)
+	addFormatterTest("%#v", &pv3, "(**"+v3t+")"+v3s2)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+	addFormatterTest("%#+v", v3, "("+v3t+")"+v3s2)
+	addFormatterTest("%#+v", pv3, "(*"+v3t+")("+v3Addr+")"+v3s2)
+	addFormatterTest("%#+v", &pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")"+v3s2)
+	addFormatterTest("%#+v", nv3, "(*"+v3t+")"+"<nil>")
+
+	// Map with nil interface value
+	v4 := map[string]interface{}{"nil": nil}
+	nv4 := (*map[string]interface{})(nil)
+	pv4 := &v4
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "map[string]interface {}"
+	v4t1 := "interface {}"
+	v4s := "map[nil:<nil>]"
+	v4s2 := "map[nil:(" + v4t1 + ")<nil>]"
+	addFormatterTest("%v", v4, v4s)
+	addFormatterTest("%v", pv4, "<*>"+v4s)
+	addFormatterTest("%v", &pv4, "<**>"+v4s)
+	addFormatterTest("%+v", nv4, "<nil>")
+	addFormatterTest("%+v", v4, v4s)
+	addFormatterTest("%+v", pv4, "<*>("+v4Addr+")"+v4s)
+	addFormatterTest("%+v", &pv4, "<**>("+pv4Addr+"->"+v4Addr+")"+v4s)
+	addFormatterTest("%+v", nv4, "<nil>")
+	addFormatterTest("%#v", v4, "("+v4t+")"+v4s2)
+	addFormatterTest("%#v", pv4, "(*"+v4t+")"+v4s2)
+	addFormatterTest("%#v", &pv4, "(**"+v4t+")"+v4s2)
+	addFormatterTest("%#v", nv4, "(*"+v4t+")"+"<nil>")
+	addFormatterTest("%#+v", v4, "("+v4t+")"+v4s2)
+	addFormatterTest("%#+v", pv4, "(*"+v4t+")("+v4Addr+")"+v4s2)
+	addFormatterTest("%#+v", &pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")"+v4s2)
+	addFormatterTest("%#+v", nv4, "(*"+v4t+")"+"<nil>")
+}
+
+func addStructFormatterTests() {
+	// Struct with primitives.
+	type s1 struct {
+		a int8
+		b uint8
+	}
+	v := s1{127, 255}
+	nv := (*s1)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "spew_test.s1"
+	vt2 := "int8"
+	vt3 := "uint8"
+	vs := "{127 255}"
+	vs2 := "{a:127 b:255}"
+	vs3 := "{a:(" + vt2 + ")127 b:(" + vt3 + ")255}"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs2)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs2)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs2)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs3)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs3)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs3)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs3)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs3)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs3)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Struct that contains another struct.
+	type s2 struct {
+		s1 s1
+		b  bool
+	}
+	v2 := s2{s1{127, 255}, true}
+	nv2 := (*s2)(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "spew_test.s2"
+	v2t2 := "spew_test.s1"
+	v2t3 := "int8"
+	v2t4 := "uint8"
+	v2t5 := "bool"
+	v2s := "{{127 255} true}"
+	v2s2 := "{s1:{a:127 b:255} b:true}"
+	v2s3 := "{s1:(" + v2t2 + "){a:(" + v2t3 + ")127 b:(" + v2t4 + ")255} b:(" +
+		v2t5 + ")true}"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s2)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s2)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s2)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s3)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s3)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s3)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s3)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s3)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s3)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+
+	// Struct that contains custom type with Stringer pointer interface via both
+	// exported and unexported fields.
+	type s3 struct {
+		s pstringer
+		S pstringer
+	}
+	v3 := s3{"test", "test2"}
+	nv3 := (*s3)(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "spew_test.s3"
+	v3t2 := "spew_test.pstringer"
+	v3s := "{stringer test stringer test2}"
+	v3sp := v3s
+	v3s2 := "{s:stringer test S:stringer test2}"
+	v3s2p := v3s2
+	v3s3 := "{s:(" + v3t2 + ")stringer test S:(" + v3t2 + ")stringer test2}"
+	v3s3p := v3s3
+	if spew.UnsafeDisabled {
+		v3s = "{test test2}"
+		v3sp = "{test stringer test2}"
+		v3s2 = "{s:test S:test2}"
+		v3s2p = "{s:test S:stringer test2}"
+		v3s3 = "{s:(" + v3t2 + ")test S:(" + v3t2 + ")test2}"
+		v3s3p = "{s:(" + v3t2 + ")test S:(" + v3t2 + ")stringer test2}"
+	}
+	addFormatterTest("%v", v3, v3s)
+	addFormatterTest("%v", pv3, "<*>"+v3sp)
+	addFormatterTest("%v", &pv3, "<**>"+v3sp)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%+v", v3, v3s2)
+	addFormatterTest("%+v", pv3, "<*>("+v3Addr+")"+v3s2p)
+	addFormatterTest("%+v", &pv3, "<**>("+pv3Addr+"->"+v3Addr+")"+v3s2p)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%#v", v3, "("+v3t+")"+v3s3)
+	addFormatterTest("%#v", pv3, "(*"+v3t+")"+v3s3p)
+	addFormatterTest("%#v", &pv3, "(**"+v3t+")"+v3s3p)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+	addFormatterTest("%#+v", v3, "("+v3t+")"+v3s3)
+	addFormatterTest("%#+v", pv3, "(*"+v3t+")("+v3Addr+")"+v3s3p)
+	addFormatterTest("%#+v", &pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")"+v3s3p)
+	addFormatterTest("%#+v", nv3, "(*"+v3t+")"+"<nil>")
+
+	// Struct that contains embedded struct and field to same struct.
+	e := embed{"embedstr"}
+	v4 := embedwrap{embed: &e, e: &e}
+	nv4 := (*embedwrap)(nil)
+	pv4 := &v4
+	eAddr := fmt.Sprintf("%p", &e)
+	v4Addr := fmt.Sprintf("%p", pv4)
+	pv4Addr := fmt.Sprintf("%p", &pv4)
+	v4t := "spew_test.embedwrap"
+	v4t2 := "spew_test.embed"
+	v4t3 := "string"
+	v4s := "{<*>{embedstr} <*>{embedstr}}"
+	v4s2 := "{embed:<*>(" + eAddr + "){a:embedstr} e:<*>(" + eAddr +
+		"){a:embedstr}}"
+	v4s3 := "{embed:(*" + v4t2 + "){a:(" + v4t3 + ")embedstr} e:(*" + v4t2 +
+		"){a:(" + v4t3 + ")embedstr}}"
+	v4s4 := "{embed:(*" + v4t2 + ")(" + eAddr + "){a:(" + v4t3 +
+		")embedstr} e:(*" + v4t2 + ")(" + eAddr + "){a:(" + v4t3 + ")embedstr}}"
+	addFormatterTest("%v", v4, v4s)
+	addFormatterTest("%v", pv4, "<*>"+v4s)
+	addFormatterTest("%v", &pv4, "<**>"+v4s)
+	addFormatterTest("%+v", nv4, "<nil>")
+	addFormatterTest("%+v", v4, v4s2)
+	addFormatterTest("%+v", pv4, "<*>("+v4Addr+")"+v4s2)
+	addFormatterTest("%+v", &pv4, "<**>("+pv4Addr+"->"+v4Addr+")"+v4s2)
+	addFormatterTest("%+v", nv4, "<nil>")
+	addFormatterTest("%#v", v4, "("+v4t+")"+v4s3)
+	addFormatterTest("%#v", pv4, "(*"+v4t+")"+v4s3)
+	addFormatterTest("%#v", &pv4, "(**"+v4t+")"+v4s3)
+	addFormatterTest("%#v", nv4, "(*"+v4t+")"+"<nil>")
+	addFormatterTest("%#+v", v4, "("+v4t+")"+v4s4)
+	addFormatterTest("%#+v", pv4, "(*"+v4t+")("+v4Addr+")"+v4s4)
+	addFormatterTest("%#+v", &pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")"+v4s4)
+	addFormatterTest("%#+v", nv4, "(*"+v4t+")"+"<nil>")
+}
+
+func addUintptrFormatterTests() {
+	// Null pointer.
+	v := uintptr(0)
+	nv := (*uintptr)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "uintptr"
+	vs := "<nil>"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Address of real variable.
+	i := 1
+	v2 := uintptr(unsafe.Pointer(&i))
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "uintptr"
+	v2s := fmt.Sprintf("%p", &i)
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+}
+
+func addUnsafePointerFormatterTests() {
+	// Null pointer.
+	v := unsafe.Pointer(uintptr(0))
+	nv := (*unsafe.Pointer)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "unsafe.Pointer"
+	vs := "<nil>"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Address of real variable.
+	i := 1
+	v2 := unsafe.Pointer(&i)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "unsafe.Pointer"
+	v2s := fmt.Sprintf("%p", &i)
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+}
+
+func addChanFormatterTests() {
+	// Nil channel.
+	var v chan int
+	pv := &v
+	nv := (*chan int)(nil)
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "chan int"
+	vs := "<nil>"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Real channel.
+	v2 := make(chan int)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "chan int"
+	v2s := fmt.Sprintf("%p", v2)
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+}
+
+func addFuncFormatterTests() {
+	// Function with no params and no returns.
+	v := addIntFormatterTests
+	nv := (*func())(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "func()"
+	vs := fmt.Sprintf("%p", v)
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+
+	// Function with param and no returns.
+	v2 := TestFormatter
+	nv2 := (*func(*testing.T))(nil)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "func(*testing.T)"
+	v2s := fmt.Sprintf("%p", v2)
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s)
+	addFormatterTest("%v", &pv2, "<**>"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%+v", v2, v2s)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%+v", nv2, "<nil>")
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s)
+	addFormatterTest("%#v", nv2, "(*"+v2t+")"+"<nil>")
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s)
+	addFormatterTest("%#+v", nv2, "(*"+v2t+")"+"<nil>")
+
+	// Function with multiple params and multiple returns.
+	var v3 = func(i int, s string) (b bool, err error) {
+		return true, nil
+	}
+	nv3 := (*func(int, string) (bool, error))(nil)
+	pv3 := &v3
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "func(int, string) (bool, error)"
+	v3s := fmt.Sprintf("%p", v3)
+	addFormatterTest("%v", v3, v3s)
+	addFormatterTest("%v", pv3, "<*>"+v3s)
+	addFormatterTest("%v", &pv3, "<**>"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%+v", v3, v3s)
+	addFormatterTest("%+v", pv3, "<*>("+v3Addr+")"+v3s)
+	addFormatterTest("%+v", &pv3, "<**>("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%+v", nv3, "<nil>")
+	addFormatterTest("%#v", v3, "("+v3t+")"+v3s)
+	addFormatterTest("%#v", pv3, "(*"+v3t+")"+v3s)
+	addFormatterTest("%#v", &pv3, "(**"+v3t+")"+v3s)
+	addFormatterTest("%#v", nv3, "(*"+v3t+")"+"<nil>")
+	addFormatterTest("%#+v", v3, "("+v3t+")"+v3s)
+	addFormatterTest("%#+v", pv3, "(*"+v3t+")("+v3Addr+")"+v3s)
+	addFormatterTest("%#+v", &pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")"+v3s)
+	addFormatterTest("%#+v", nv3, "(*"+v3t+")"+"<nil>")
+}
+
+func addCircularFormatterTests() {
+	// Struct that is circular through self referencing.
+	type circular struct {
+		c *circular
+	}
+	v := circular{nil}
+	v.c = &v
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "spew_test.circular"
+	vs := "{<*>{<*><shown>}}"
+	vs2 := "{<*><shown>}"
+	vs3 := "{c:<*>(" + vAddr + "){c:<*>(" + vAddr + ")<shown>}}"
+	vs4 := "{c:<*>(" + vAddr + ")<shown>}"
+	vs5 := "{c:(*" + vt + "){c:(*" + vt + ")<shown>}}"
+	vs6 := "{c:(*" + vt + ")<shown>}"
+	vs7 := "{c:(*" + vt + ")(" + vAddr + "){c:(*" + vt + ")(" + vAddr +
+		")<shown>}}"
+	vs8 := "{c:(*" + vt + ")(" + vAddr + ")<shown>}"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs2)
+	addFormatterTest("%v", &pv, "<**>"+vs2)
+	addFormatterTest("%+v", v, vs3)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs4)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs4)
+	addFormatterTest("%#v", v, "("+vt+")"+vs5)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs6)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs6)
+	addFormatterTest("%#+v", v, "("+vt+")"+vs7)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs8)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs8)
+
+	// Structs that are circular through cross referencing.
+	v2 := xref1{nil}
+	ts2 := xref2{&v2}
+	v2.ps2 = &ts2
+	pv2 := &v2
+	ts2Addr := fmt.Sprintf("%p", &ts2)
+	v2Addr := fmt.Sprintf("%p", pv2)
+	pv2Addr := fmt.Sprintf("%p", &pv2)
+	v2t := "spew_test.xref1"
+	v2t2 := "spew_test.xref2"
+	v2s := "{<*>{<*>{<*><shown>}}}"
+	v2s2 := "{<*>{<*><shown>}}"
+	v2s3 := "{ps2:<*>(" + ts2Addr + "){ps1:<*>(" + v2Addr + "){ps2:<*>(" +
+		ts2Addr + ")<shown>}}}"
+	v2s4 := "{ps2:<*>(" + ts2Addr + "){ps1:<*>(" + v2Addr + ")<shown>}}"
+	v2s5 := "{ps2:(*" + v2t2 + "){ps1:(*" + v2t + "){ps2:(*" + v2t2 +
+		")<shown>}}}"
+	v2s6 := "{ps2:(*" + v2t2 + "){ps1:(*" + v2t + ")<shown>}}"
+	v2s7 := "{ps2:(*" + v2t2 + ")(" + ts2Addr + "){ps1:(*" + v2t +
+		")(" + v2Addr + "){ps2:(*" + v2t2 + ")(" + ts2Addr +
+		")<shown>}}}"
+	v2s8 := "{ps2:(*" + v2t2 + ")(" + ts2Addr + "){ps1:(*" + v2t +
+		")(" + v2Addr + ")<shown>}}"
+	addFormatterTest("%v", v2, v2s)
+	addFormatterTest("%v", pv2, "<*>"+v2s2)
+	addFormatterTest("%v", &pv2, "<**>"+v2s2)
+	addFormatterTest("%+v", v2, v2s3)
+	addFormatterTest("%+v", pv2, "<*>("+v2Addr+")"+v2s4)
+	addFormatterTest("%+v", &pv2, "<**>("+pv2Addr+"->"+v2Addr+")"+v2s4)
+	addFormatterTest("%#v", v2, "("+v2t+")"+v2s5)
+	addFormatterTest("%#v", pv2, "(*"+v2t+")"+v2s6)
+	addFormatterTest("%#v", &pv2, "(**"+v2t+")"+v2s6)
+	addFormatterTest("%#+v", v2, "("+v2t+")"+v2s7)
+	addFormatterTest("%#+v", pv2, "(*"+v2t+")("+v2Addr+")"+v2s8)
+	addFormatterTest("%#+v", &pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")"+v2s8)
+
+	// Structs that are indirectly circular.
+	v3 := indirCir1{nil}
+	tic2 := indirCir2{nil}
+	tic3 := indirCir3{&v3}
+	tic2.ps3 = &tic3
+	v3.ps2 = &tic2
+	pv3 := &v3
+	tic2Addr := fmt.Sprintf("%p", &tic2)
+	tic3Addr := fmt.Sprintf("%p", &tic3)
+	v3Addr := fmt.Sprintf("%p", pv3)
+	pv3Addr := fmt.Sprintf("%p", &pv3)
+	v3t := "spew_test.indirCir1"
+	v3t2 := "spew_test.indirCir2"
+	v3t3 := "spew_test.indirCir3"
+	v3s := "{<*>{<*>{<*>{<*><shown>}}}}"
+	v3s2 := "{<*>{<*>{<*><shown>}}}"
+	v3s3 := "{ps2:<*>(" + tic2Addr + "){ps3:<*>(" + tic3Addr + "){ps1:<*>(" +
+		v3Addr + "){ps2:<*>(" + tic2Addr + ")<shown>}}}}"
+	v3s4 := "{ps2:<*>(" + tic2Addr + "){ps3:<*>(" + tic3Addr + "){ps1:<*>(" +
+		v3Addr + ")<shown>}}}"
+	v3s5 := "{ps2:(*" + v3t2 + "){ps3:(*" + v3t3 + "){ps1:(*" + v3t +
+		"){ps2:(*" + v3t2 + ")<shown>}}}}"
+	v3s6 := "{ps2:(*" + v3t2 + "){ps3:(*" + v3t3 + "){ps1:(*" + v3t +
+		")<shown>}}}"
+	v3s7 := "{ps2:(*" + v3t2 + ")(" + tic2Addr + "){ps3:(*" + v3t3 + ")(" +
+		tic3Addr + "){ps1:(*" + v3t + ")(" + v3Addr + "){ps2:(*" + v3t2 +
+		")(" + tic2Addr + ")<shown>}}}}"
+	v3s8 := "{ps2:(*" + v3t2 + ")(" + tic2Addr + "){ps3:(*" + v3t3 + ")(" +
+		tic3Addr + "){ps1:(*" + v3t + ")(" + v3Addr + ")<shown>}}}"
+	addFormatterTest("%v", v3, v3s)
+	addFormatterTest("%v", pv3, "<*>"+v3s2)
+	addFormatterTest("%v", &pv3, "<**>"+v3s2)
+	addFormatterTest("%+v", v3, v3s3)
+	addFormatterTest("%+v", pv3, "<*>("+v3Addr+")"+v3s4)
+	addFormatterTest("%+v", &pv3, "<**>("+pv3Addr+"->"+v3Addr+")"+v3s4)
+	addFormatterTest("%#v", v3, "("+v3t+")"+v3s5)
+	addFormatterTest("%#v", pv3, "(*"+v3t+")"+v3s6)
+	addFormatterTest("%#v", &pv3, "(**"+v3t+")"+v3s6)
+	addFormatterTest("%#+v", v3, "("+v3t+")"+v3s7)
+	addFormatterTest("%#+v", pv3, "(*"+v3t+")("+v3Addr+")"+v3s8)
+	addFormatterTest("%#+v", &pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")"+v3s8)
+}
+
+func addPanicFormatterTests() {
+	// Type that panics in its Stringer interface.
+	v := panicer(127)
+	nv := (*panicer)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "spew_test.panicer"
+	vs := "(PANIC=test panic)127"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+}
+
+func addErrorFormatterTests() {
+	// Type that has a custom Error interface.
+	v := customError(127)
+	nv := (*customError)(nil)
+	pv := &v
+	vAddr := fmt.Sprintf("%p", pv)
+	pvAddr := fmt.Sprintf("%p", &pv)
+	vt := "spew_test.customError"
+	vs := "error: 127"
+	addFormatterTest("%v", v, vs)
+	addFormatterTest("%v", pv, "<*>"+vs)
+	addFormatterTest("%v", &pv, "<**>"+vs)
+	addFormatterTest("%v", nv, "<nil>")
+	addFormatterTest("%+v", v, vs)
+	addFormatterTest("%+v", pv, "<*>("+vAddr+")"+vs)
+	addFormatterTest("%+v", &pv, "<**>("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%+v", nv, "<nil>")
+	addFormatterTest("%#v", v, "("+vt+")"+vs)
+	addFormatterTest("%#v", pv, "(*"+vt+")"+vs)
+	addFormatterTest("%#v", &pv, "(**"+vt+")"+vs)
+	addFormatterTest("%#v", nv, "(*"+vt+")"+"<nil>")
+	addFormatterTest("%#+v", v, "("+vt+")"+vs)
+	addFormatterTest("%#+v", pv, "(*"+vt+")("+vAddr+")"+vs)
+	addFormatterTest("%#+v", &pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")"+vs)
+	addFormatterTest("%#+v", nv, "(*"+vt+")"+"<nil>")
+}
+
+func addPassthroughFormatterTests() {
+	// %x passthrough with uint.
+	v := uint(4294967295)
+	pv := &v
+	vAddr := fmt.Sprintf("%x", pv)
+	pvAddr := fmt.Sprintf("%x", &pv)
+	vs := "ffffffff"
+	addFormatterTest("%x", v, vs)
+	addFormatterTest("%x", pv, vAddr)
+	addFormatterTest("%x", &pv, pvAddr)
+
+	// %#x passthrough with uint.
+	v2 := int(2147483647)
+	pv2 := &v2
+	v2Addr := fmt.Sprintf("%#x", pv2)
+	pv2Addr := fmt.Sprintf("%#x", &pv2)
+	v2s := "0x7fffffff"
+	addFormatterTest("%#x", v2, v2s)
+	addFormatterTest("%#x", pv2, v2Addr)
+	addFormatterTest("%#x", &pv2, pv2Addr)
+
+	// %f passthrough with precision.
+	addFormatterTest("%.2f", 3.1415, "3.14")
+	addFormatterTest("%.3f", 3.1415, "3.142")
+	addFormatterTest("%.4f", 3.1415, "3.1415")
+
+	// %f passthrough with width and precision.
+	addFormatterTest("%5.2f", 3.1415, " 3.14")
+	addFormatterTest("%6.3f", 3.1415, " 3.142")
+	addFormatterTest("%7.4f", 3.1415, " 3.1415")
+
+	// %d passthrough with width.
+	addFormatterTest("%3d", 127, "127")
+	addFormatterTest("%4d", 127, " 127")
+	addFormatterTest("%5d", 127, "  127")
+
+	// %q passthrough with string.
+	addFormatterTest("%q", "test", "\"test\"")
+}
+
+// TestFormatter executes all of the tests described by formatterTests.
+func TestFormatter(t *testing.T) {
+	// Setup tests.
+	addIntFormatterTests()
+	addUintFormatterTests()
+	addBoolFormatterTests()
+	addFloatFormatterTests()
+	addComplexFormatterTests()
+	addArrayFormatterTests()
+	addSliceFormatterTests()
+	addStringFormatterTests()
+	addInterfaceFormatterTests()
+	addMapFormatterTests()
+	addStructFormatterTests()
+	addUintptrFormatterTests()
+	addUnsafePointerFormatterTests()
+	addChanFormatterTests()
+	addFuncFormatterTests()
+	addCircularFormatterTests()
+	addPanicFormatterTests()
+	addErrorFormatterTests()
+	addPassthroughFormatterTests()
+
+	t.Logf("Running %d tests", len(formatterTests))
+	for i, test := range formatterTests {
+		buf := new(bytes.Buffer)
+		spew.Fprintf(buf, test.format, test.in)
+		s := buf.String()
+		if testFailed(s, test.wants) {
+			t.Errorf("Formatter #%d format: %s got: %s %s", i, test.format, s,
+				stringizeWants(test.wants))
+			continue
+		}
+	}
+}
+
+type testStruct struct {
+	x int
+}
+
+func (ts testStruct) String() string {
+	return fmt.Sprintf("ts.%d", ts.x)
+}
+
+type testStructP struct {
+	x int
+}
+
+func (ts *testStructP) String() string {
+	return fmt.Sprintf("ts.%d", ts.x)
+}
+
+func TestPrintSortedKeys(t *testing.T) {
+	cfg := spew.ConfigState{SortKeys: true}
+	s := cfg.Sprint(map[int]string{1: "1", 3: "3", 2: "2"})
+	expected := "map[1:1 2:2 3:3]"
+	if s != expected {
+		t.Errorf("Sorted keys mismatch 1:\n  %v %v", s, expected)
+	}
+
+	s = cfg.Sprint(map[stringer]int{"1": 1, "3": 3, "2": 2})
+	expected = "map[stringer 1:1 stringer 2:2 stringer 3:3]"
+	if s != expected {
+		t.Errorf("Sorted keys mismatch 2:\n  %v %v", s, expected)
+	}
+
+	s = cfg.Sprint(map[pstringer]int{pstringer("1"): 1, pstringer("3"): 3, pstringer("2"): 2})
+	expected = "map[stringer 1:1 stringer 2:2 stringer 3:3]"
+	if spew.UnsafeDisabled {
+		expected = "map[1:1 2:2 3:3]"
+	}
+	if s != expected {
+		t.Errorf("Sorted keys mismatch 3:\n  %v %v", s, expected)
+	}
+
+	s = cfg.Sprint(map[testStruct]int{testStruct{1}: 1, testStruct{3}: 3, testStruct{2}: 2})
+	expected = "map[ts.1:1 ts.2:2 ts.3:3]"
+	if s != expected {
+		t.Errorf("Sorted keys mismatch 4:\n  %v %v", s, expected)
+	}
+
+	if !spew.UnsafeDisabled {
+		s = cfg.Sprint(map[testStructP]int{testStructP{1}: 1, testStructP{3}: 3, testStructP{2}: 2})
+		expected = "map[ts.1:1 ts.2:2 ts.3:3]"
+		if s != expected {
+			t.Errorf("Sorted keys mismatch 5:\n  %v %v", s, expected)
+		}
+	}
+
+	s = cfg.Sprint(map[customError]int{customError(1): 1, customError(3): 3, customError(2): 2})
+	expected = "map[error: 1:1 error: 2:2 error: 3:3]"
+	if s != expected {
+		t.Errorf("Sorted keys mismatch 6:\n  %v %v", s, expected)
+	}
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/internal_test.go b/vendor/github.com/davecgh/go-spew/spew/internal_test.go
new file mode 100644
index 0000000..20a9cfe
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/internal_test.go
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+This test file is part of the spew package rather than than the spew_test
+package because it needs access to internals to properly test certain cases
+which are not possible via the public interface since they should never happen.
+*/
+
+package spew
+
+import (
+	"bytes"
+	"reflect"
+	"testing"
+)
+
+// dummyFmtState implements a fake fmt.State to use for testing invalid
+// reflect.Value handling.  This is necessary because the fmt package catches
+// invalid values before invoking the formatter on them.
+type dummyFmtState struct {
+	bytes.Buffer
+}
+
+func (dfs *dummyFmtState) Flag(f int) bool {
+	if f == int('+') {
+		return true
+	}
+	return false
+}
+
+func (dfs *dummyFmtState) Precision() (int, bool) {
+	return 0, false
+}
+
+func (dfs *dummyFmtState) Width() (int, bool) {
+	return 0, false
+}
+
+// TestInvalidReflectValue ensures the dump and formatter code handles an
+// invalid reflect value properly.  This needs access to internal state since it
+// should never happen in real code and therefore can't be tested via the public
+// API.
+func TestInvalidReflectValue(t *testing.T) {
+	i := 1
+
+	// Dump invalid reflect value.
+	v := new(reflect.Value)
+	buf := new(bytes.Buffer)
+	d := dumpState{w: buf, cs: &Config}
+	d.dump(*v)
+	s := buf.String()
+	want := "<invalid>"
+	if s != want {
+		t.Errorf("InvalidReflectValue #%d\n got: %s want: %s", i, s, want)
+	}
+	i++
+
+	// Formatter invalid reflect value.
+	buf2 := new(dummyFmtState)
+	f := formatState{value: *v, cs: &Config, fs: buf2}
+	f.format(*v)
+	s = buf2.String()
+	want = "<invalid>"
+	if s != want {
+		t.Errorf("InvalidReflectValue #%d got: %s want: %s", i, s, want)
+	}
+}
+
+// SortValues makes the internal sortValues function available to the test
+// package.
+func SortValues(values []reflect.Value, cs *ConfigState) {
+	sortValues(values, cs)
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/internalunsafe_test.go b/vendor/github.com/davecgh/go-spew/spew/internalunsafe_test.go
new file mode 100644
index 0000000..a0c612e
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/internalunsafe_test.go
@@ -0,0 +1,102 @@
+// Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+
+// Permission to use, copy, modify, and distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+// NOTE: Due to the following build constraints, this file will only be compiled
+// when the code is not running on Google App Engine, compiled by GopherJS, and
+// "-tags safe" is not added to the go build command line.  The "disableunsafe"
+// tag is deprecated and thus should not be used.
+// +build !js,!appengine,!safe,!disableunsafe
+
+/*
+This test file is part of the spew package rather than than the spew_test
+package because it needs access to internals to properly test certain cases
+which are not possible via the public interface since they should never happen.
+*/
+
+package spew
+
+import (
+	"bytes"
+	"reflect"
+	"testing"
+	"unsafe"
+)
+
+// changeKind uses unsafe to intentionally change the kind of a reflect.Value to
+// the maximum kind value which does not exist.  This is needed to test the
+// fallback code which punts to the standard fmt library for new types that
+// might get added to the language.
+func changeKind(v *reflect.Value, readOnly bool) {
+	rvf := (*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + offsetFlag))
+	*rvf = *rvf | ((1<<flagKindWidth - 1) << flagKindShift)
+	if readOnly {
+		*rvf |= flagRO
+	} else {
+		*rvf &= ^uintptr(flagRO)
+	}
+}
+
+// TestAddedReflectValue tests functionaly of the dump and formatter code which
+// falls back to the standard fmt library for new types that might get added to
+// the language.
+func TestAddedReflectValue(t *testing.T) {
+	i := 1
+
+	// Dump using a reflect.Value that is exported.
+	v := reflect.ValueOf(int8(5))
+	changeKind(&v, false)
+	buf := new(bytes.Buffer)
+	d := dumpState{w: buf, cs: &Config}
+	d.dump(v)
+	s := buf.String()
+	want := "(int8) 5"
+	if s != want {
+		t.Errorf("TestAddedReflectValue #%d\n got: %s want: %s", i, s, want)
+	}
+	i++
+
+	// Dump using a reflect.Value that is not exported.
+	changeKind(&v, true)
+	buf.Reset()
+	d.dump(v)
+	s = buf.String()
+	want = "(int8) <int8 Value>"
+	if s != want {
+		t.Errorf("TestAddedReflectValue #%d\n got: %s want: %s", i, s, want)
+	}
+	i++
+
+	// Formatter using a reflect.Value that is exported.
+	changeKind(&v, false)
+	buf2 := new(dummyFmtState)
+	f := formatState{value: v, cs: &Config, fs: buf2}
+	f.format(v)
+	s = buf2.String()
+	want = "5"
+	if s != want {
+		t.Errorf("TestAddedReflectValue #%d got: %s want: %s", i, s, want)
+	}
+	i++
+
+	// Formatter using a reflect.Value that is not exported.
+	changeKind(&v, true)
+	buf2.Reset()
+	f = formatState{value: v, cs: &Config, fs: buf2}
+	f.format(v)
+	s = buf2.String()
+	want = "<int8 Value>"
+	if s != want {
+		t.Errorf("TestAddedReflectValue #%d got: %s want: %s", i, s, want)
+	}
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/spew.go b/vendor/github.com/davecgh/go-spew/spew/spew.go
new file mode 100644
index 0000000..32c0e33
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/spew.go
@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package spew
+
+import (
+	"fmt"
+	"io"
+)
+
+// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
+// passed with a default Formatter interface returned by NewFormatter.  It
+// returns the formatted string as a value that satisfies error.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
+func Errorf(format string, a ...interface{}) (err error) {
+	return fmt.Errorf(format, convertArgs(a)...)
+}
+
+// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
+// passed with a default Formatter interface returned by NewFormatter.  It
+// returns the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
+func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
+	return fmt.Fprint(w, convertArgs(a)...)
+}
+
+// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
+// passed with a default Formatter interface returned by NewFormatter.  It
+// returns the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
+func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
+	return fmt.Fprintf(w, format, convertArgs(a)...)
+}
+
+// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
+// passed with a default Formatter interface returned by NewFormatter.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
+func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
+	return fmt.Fprintln(w, convertArgs(a)...)
+}
+
+// Print is a wrapper for fmt.Print that treats each argument as if it were
+// passed with a default Formatter interface returned by NewFormatter.  It
+// returns the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
+func Print(a ...interface{}) (n int, err error) {
+	return fmt.Print(convertArgs(a)...)
+}
+
+// Printf is a wrapper for fmt.Printf that treats each argument as if it were
+// passed with a default Formatter interface returned by NewFormatter.  It
+// returns the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
+func Printf(format string, a ...interface{}) (n int, err error) {
+	return fmt.Printf(format, convertArgs(a)...)
+}
+
+// Println is a wrapper for fmt.Println that treats each argument as if it were
+// passed with a default Formatter interface returned by NewFormatter.  It
+// returns the number of bytes written and any write error encountered.  See
+// NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
+func Println(a ...interface{}) (n int, err error) {
+	return fmt.Println(convertArgs(a)...)
+}
+
+// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
+// passed with a default Formatter interface returned by NewFormatter.  It
+// returns the resulting string.  See NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
+func Sprint(a ...interface{}) string {
+	return fmt.Sprint(convertArgs(a)...)
+}
+
+// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
+// passed with a default Formatter interface returned by NewFormatter.  It
+// returns the resulting string.  See NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
+func Sprintf(format string, a ...interface{}) string {
+	return fmt.Sprintf(format, convertArgs(a)...)
+}
+
+// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
+// were passed with a default Formatter interface returned by NewFormatter.  It
+// returns the resulting string.  See NewFormatter for formatting details.
+//
+// This function is shorthand for the following syntax:
+//
+//	fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
+func Sprintln(a ...interface{}) string {
+	return fmt.Sprintln(convertArgs(a)...)
+}
+
+// convertArgs accepts a slice of arguments and returns a slice of the same
+// length with each argument converted to a default spew Formatter interface.
+func convertArgs(args []interface{}) (formatters []interface{}) {
+	formatters = make([]interface{}, len(args))
+	for index, arg := range args {
+		formatters[index] = NewFormatter(arg)
+	}
+	return formatters
+}
diff --git a/vendor/github.com/davecgh/go-spew/spew/spew_test.go b/vendor/github.com/davecgh/go-spew/spew/spew_test.go
new file mode 100644
index 0000000..b70466c
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/spew/spew_test.go
@@ -0,0 +1,320 @@
+/*
+ * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package spew_test
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+)
+
+// spewFunc is used to identify which public function of the spew package or
+// ConfigState a test applies to.
+type spewFunc int
+
+const (
+	fCSFdump spewFunc = iota
+	fCSFprint
+	fCSFprintf
+	fCSFprintln
+	fCSPrint
+	fCSPrintln
+	fCSSdump
+	fCSSprint
+	fCSSprintf
+	fCSSprintln
+	fCSErrorf
+	fCSNewFormatter
+	fErrorf
+	fFprint
+	fFprintln
+	fPrint
+	fPrintln
+	fSdump
+	fSprint
+	fSprintf
+	fSprintln
+)
+
+// Map of spewFunc values to names for pretty printing.
+var spewFuncStrings = map[spewFunc]string{
+	fCSFdump:        "ConfigState.Fdump",
+	fCSFprint:       "ConfigState.Fprint",
+	fCSFprintf:      "ConfigState.Fprintf",
+	fCSFprintln:     "ConfigState.Fprintln",
+	fCSSdump:        "ConfigState.Sdump",
+	fCSPrint:        "ConfigState.Print",
+	fCSPrintln:      "ConfigState.Println",
+	fCSSprint:       "ConfigState.Sprint",
+	fCSSprintf:      "ConfigState.Sprintf",
+	fCSSprintln:     "ConfigState.Sprintln",
+	fCSErrorf:       "ConfigState.Errorf",
+	fCSNewFormatter: "ConfigState.NewFormatter",
+	fErrorf:         "spew.Errorf",
+	fFprint:         "spew.Fprint",
+	fFprintln:       "spew.Fprintln",
+	fPrint:          "spew.Print",
+	fPrintln:        "spew.Println",
+	fSdump:          "spew.Sdump",
+	fSprint:         "spew.Sprint",
+	fSprintf:        "spew.Sprintf",
+	fSprintln:       "spew.Sprintln",
+}
+
+func (f spewFunc) String() string {
+	if s, ok := spewFuncStrings[f]; ok {
+		return s
+	}
+	return fmt.Sprintf("Unknown spewFunc (%d)", int(f))
+}
+
+// spewTest is used to describe a test to be performed against the public
+// functions of the spew package or ConfigState.
+type spewTest struct {
+	cs     *spew.ConfigState
+	f      spewFunc
+	format string
+	in     interface{}
+	want   string
+}
+
+// spewTests houses the tests to be performed against the public functions of
+// the spew package and ConfigState.
+//
+// These tests are only intended to ensure the public functions are exercised
+// and are intentionally not exhaustive of types.  The exhaustive type
+// tests are handled in the dump and format tests.
+var spewTests []spewTest
+
+// redirStdout is a helper function to return the standard output from f as a
+// byte slice.
+func redirStdout(f func()) ([]byte, error) {
+	tempFile, err := ioutil.TempFile("", "ss-test")
+	if err != nil {
+		return nil, err
+	}
+	fileName := tempFile.Name()
+	defer os.Remove(fileName) // Ignore error
+
+	origStdout := os.Stdout
+	os.Stdout = tempFile
+	f()
+	os.Stdout = origStdout
+	tempFile.Close()
+
+	return ioutil.ReadFile(fileName)
+}
+
+func initSpewTests() {
+	// Config states with various settings.
+	scsDefault := spew.NewDefaultConfig()
+	scsNoMethods := &spew.ConfigState{Indent: " ", DisableMethods: true}
+	scsNoPmethods := &spew.ConfigState{Indent: " ", DisablePointerMethods: true}
+	scsMaxDepth := &spew.ConfigState{Indent: " ", MaxDepth: 1}
+	scsContinue := &spew.ConfigState{Indent: " ", ContinueOnMethod: true}
+	scsNoPtrAddr := &spew.ConfigState{DisablePointerAddresses: true}
+	scsNoCap := &spew.ConfigState{DisableCapacities: true}
+
+	// Variables for tests on types which implement Stringer interface with and
+	// without a pointer receiver.
+	ts := stringer("test")
+	tps := pstringer("test")
+
+	type ptrTester struct {
+		s *struct{}
+	}
+	tptr := &ptrTester{s: &struct{}{}}
+
+	// depthTester is used to test max depth handling for structs, array, slices
+	// and maps.
+	type depthTester struct {
+		ic    indirCir1
+		arr   [1]string
+		slice []string
+		m     map[string]int
+	}
+	dt := depthTester{indirCir1{nil}, [1]string{"arr"}, []string{"slice"},
+		map[string]int{"one": 1}}
+
+	// Variable for tests on types which implement error interface.
+	te := customError(10)
+
+	spewTests = []spewTest{
+		{scsDefault, fCSFdump, "", int8(127), "(int8) 127\n"},
+		{scsDefault, fCSFprint, "", int16(32767), "32767"},
+		{scsDefault, fCSFprintf, "%v", int32(2147483647), "2147483647"},
+		{scsDefault, fCSFprintln, "", int(2147483647), "2147483647\n"},
+		{scsDefault, fCSPrint, "", int64(9223372036854775807), "9223372036854775807"},
+		{scsDefault, fCSPrintln, "", uint8(255), "255\n"},
+		{scsDefault, fCSSdump, "", uint8(64), "(uint8) 64\n"},
+		{scsDefault, fCSSprint, "", complex(1, 2), "(1+2i)"},
+		{scsDefault, fCSSprintf, "%v", complex(float32(3), 4), "(3+4i)"},
+		{scsDefault, fCSSprintln, "", complex(float64(5), 6), "(5+6i)\n"},
+		{scsDefault, fCSErrorf, "%#v", uint16(65535), "(uint16)65535"},
+		{scsDefault, fCSNewFormatter, "%v", uint32(4294967295), "4294967295"},
+		{scsDefault, fErrorf, "%v", uint64(18446744073709551615), "18446744073709551615"},
+		{scsDefault, fFprint, "", float32(3.14), "3.14"},
+		{scsDefault, fFprintln, "", float64(6.28), "6.28\n"},
+		{scsDefault, fPrint, "", true, "true"},
+		{scsDefault, fPrintln, "", false, "false\n"},
+		{scsDefault, fSdump, "", complex(-10, -20), "(complex128) (-10-20i)\n"},
+		{scsDefault, fSprint, "", complex(-1, -2), "(-1-2i)"},
+		{scsDefault, fSprintf, "%v", complex(float32(-3), -4), "(-3-4i)"},
+		{scsDefault, fSprintln, "", complex(float64(-5), -6), "(-5-6i)\n"},
+		{scsNoMethods, fCSFprint, "", ts, "test"},
+		{scsNoMethods, fCSFprint, "", &ts, "<*>test"},
+		{scsNoMethods, fCSFprint, "", tps, "test"},
+		{scsNoMethods, fCSFprint, "", &tps, "<*>test"},
+		{scsNoPmethods, fCSFprint, "", ts, "stringer test"},
+		{scsNoPmethods, fCSFprint, "", &ts, "<*>stringer test"},
+		{scsNoPmethods, fCSFprint, "", tps, "test"},
+		{scsNoPmethods, fCSFprint, "", &tps, "<*>stringer test"},
+		{scsMaxDepth, fCSFprint, "", dt, "{{<max>} [<max>] [<max>] map[<max>]}"},
+		{scsMaxDepth, fCSFdump, "", dt, "(spew_test.depthTester) {\n" +
+			" ic: (spew_test.indirCir1) {\n  <max depth reached>\n },\n" +
+			" arr: ([1]string) (len=1 cap=1) {\n  <max depth reached>\n },\n" +
+			" slice: ([]string) (len=1 cap=1) {\n  <max depth reached>\n },\n" +
+			" m: (map[string]int) (len=1) {\n  <max depth reached>\n }\n}\n"},
+		{scsContinue, fCSFprint, "", ts, "(stringer test) test"},
+		{scsContinue, fCSFdump, "", ts, "(spew_test.stringer) " +
+			"(len=4) (stringer test) \"test\"\n"},
+		{scsContinue, fCSFprint, "", te, "(error: 10) 10"},
+		{scsContinue, fCSFdump, "", te, "(spew_test.customError) " +
+			"(error: 10) 10\n"},
+		{scsNoPtrAddr, fCSFprint, "", tptr, "<*>{<*>{}}"},
+		{scsNoPtrAddr, fCSSdump, "", tptr, "(*spew_test.ptrTester)({\ns: (*struct {})({\n})\n})\n"},
+		{scsNoCap, fCSSdump, "", make([]string, 0, 10), "([]string) {\n}\n"},
+		{scsNoCap, fCSSdump, "", make([]string, 1, 10), "([]string) (len=1) {\n(string) \"\"\n}\n"},
+	}
+}
+
+// TestSpew executes all of the tests described by spewTests.
+func TestSpew(t *testing.T) {
+	initSpewTests()
+
+	t.Logf("Running %d tests", len(spewTests))
+	for i, test := range spewTests {
+		buf := new(bytes.Buffer)
+		switch test.f {
+		case fCSFdump:
+			test.cs.Fdump(buf, test.in)
+
+		case fCSFprint:
+			test.cs.Fprint(buf, test.in)
+
+		case fCSFprintf:
+			test.cs.Fprintf(buf, test.format, test.in)
+
+		case fCSFprintln:
+			test.cs.Fprintln(buf, test.in)
+
+		case fCSPrint:
+			b, err := redirStdout(func() { test.cs.Print(test.in) })
+			if err != nil {
+				t.Errorf("%v #%d %v", test.f, i, err)
+				continue
+			}
+			buf.Write(b)
+
+		case fCSPrintln:
+			b, err := redirStdout(func() { test.cs.Println(test.in) })
+			if err != nil {
+				t.Errorf("%v #%d %v", test.f, i, err)
+				continue
+			}
+			buf.Write(b)
+
+		case fCSSdump:
+			str := test.cs.Sdump(test.in)
+			buf.WriteString(str)
+
+		case fCSSprint:
+			str := test.cs.Sprint(test.in)
+			buf.WriteString(str)
+
+		case fCSSprintf:
+			str := test.cs.Sprintf(test.format, test.in)
+			buf.WriteString(str)
+
+		case fCSSprintln:
+			str := test.cs.Sprintln(test.in)
+			buf.WriteString(str)
+
+		case fCSErrorf:
+			err := test.cs.Errorf(test.format, test.in)
+			buf.WriteString(err.Error())
+
+		case fCSNewFormatter:
+			fmt.Fprintf(buf, test.format, test.cs.NewFormatter(test.in))
+
+		case fErrorf:
+			err := spew.Errorf(test.format, test.in)
+			buf.WriteString(err.Error())
+
+		case fFprint:
+			spew.Fprint(buf, test.in)
+
+		case fFprintln:
+			spew.Fprintln(buf, test.in)
+
+		case fPrint:
+			b, err := redirStdout(func() { spew.Print(test.in) })
+			if err != nil {
+				t.Errorf("%v #%d %v", test.f, i, err)
+				continue
+			}
+			buf.Write(b)
+
+		case fPrintln:
+			b, err := redirStdout(func() { spew.Println(test.in) })
+			if err != nil {
+				t.Errorf("%v #%d %v", test.f, i, err)
+				continue
+			}
+			buf.Write(b)
+
+		case fSdump:
+			str := spew.Sdump(test.in)
+			buf.WriteString(str)
+
+		case fSprint:
+			str := spew.Sprint(test.in)
+			buf.WriteString(str)
+
+		case fSprintf:
+			str := spew.Sprintf(test.format, test.in)
+			buf.WriteString(str)
+
+		case fSprintln:
+			str := spew.Sprintln(test.in)
+			buf.WriteString(str)
+
+		default:
+			t.Errorf("%v #%d unrecognized function", test.f, i)
+			continue
+		}
+		s := buf.String()
+		if test.want != s {
+			t.Errorf("ConfigState #%d\n got: %s want: %s", i, s, test.want)
+			continue
+		}
+	}
+}
diff --git a/vendor/github.com/davecgh/go-spew/test_coverage.txt b/vendor/github.com/davecgh/go-spew/test_coverage.txt
new file mode 100644
index 0000000..2cd087a
--- /dev/null
+++ b/vendor/github.com/davecgh/go-spew/test_coverage.txt
@@ -0,0 +1,61 @@
+
+github.com/davecgh/go-spew/spew/dump.go		 dumpState.dump			 100.00% (88/88)
+github.com/davecgh/go-spew/spew/format.go	 formatState.format		 100.00% (82/82)
+github.com/davecgh/go-spew/spew/format.go	 formatState.formatPtr		 100.00% (52/52)
+github.com/davecgh/go-spew/spew/dump.go		 dumpState.dumpPtr		 100.00% (44/44)
+github.com/davecgh/go-spew/spew/dump.go		 dumpState.dumpSlice		 100.00% (39/39)
+github.com/davecgh/go-spew/spew/common.go	 handleMethods			 100.00% (30/30)
+github.com/davecgh/go-spew/spew/common.go	 printHexPtr			 100.00% (18/18)
+github.com/davecgh/go-spew/spew/common.go	 unsafeReflectValue		 100.00% (13/13)
+github.com/davecgh/go-spew/spew/format.go	 formatState.constructOrigFormat 100.00% (12/12)
+github.com/davecgh/go-spew/spew/dump.go		 fdump				 100.00% (11/11)
+github.com/davecgh/go-spew/spew/format.go	 formatState.Format		 100.00% (11/11)
+github.com/davecgh/go-spew/spew/common.go	 init				 100.00% (10/10)
+github.com/davecgh/go-spew/spew/common.go	 printComplex			 100.00% (9/9)
+github.com/davecgh/go-spew/spew/common.go	 valuesSorter.Less		 100.00% (8/8)
+github.com/davecgh/go-spew/spew/format.go	 formatState.buildDefaultFormat	 100.00% (7/7)
+github.com/davecgh/go-spew/spew/format.go	 formatState.unpackValue	 100.00% (5/5)
+github.com/davecgh/go-spew/spew/dump.go		 dumpState.indent		 100.00% (4/4)
+github.com/davecgh/go-spew/spew/common.go	 catchPanic			 100.00% (4/4)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.convertArgs	 100.00% (4/4)
+github.com/davecgh/go-spew/spew/spew.go		 convertArgs			 100.00% (4/4)
+github.com/davecgh/go-spew/spew/format.go	 newFormatter			 100.00% (3/3)
+github.com/davecgh/go-spew/spew/dump.go		 Sdump				 100.00% (3/3)
+github.com/davecgh/go-spew/spew/common.go	 printBool			 100.00% (3/3)
+github.com/davecgh/go-spew/spew/common.go	 sortValues			 100.00% (3/3)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Sdump		 100.00% (3/3)
+github.com/davecgh/go-spew/spew/dump.go		 dumpState.unpackValue		 100.00% (3/3)
+github.com/davecgh/go-spew/spew/spew.go		 Printf				 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Println			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Sprint				 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Sprintf			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Sprintln			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/common.go	 printFloat			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 NewDefaultConfig		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/common.go	 printInt			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/common.go	 printUint			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/common.go	 valuesSorter.Len		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/common.go	 valuesSorter.Swap		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Errorf		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Fprint		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Fprintf		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Fprintln		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Print		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Printf		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Println		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Sprint		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Sprintf		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Sprintln		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.NewFormatter	 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Fdump		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/config.go	 ConfigState.Dump		 100.00% (1/1)
+github.com/davecgh/go-spew/spew/dump.go		 Fdump				 100.00% (1/1)
+github.com/davecgh/go-spew/spew/dump.go		 Dump				 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Fprintln			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/format.go	 NewFormatter			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Errorf				 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Fprint				 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Fprintf			 100.00% (1/1)
+github.com/davecgh/go-spew/spew/spew.go		 Print				 100.00% (1/1)
+github.com/davecgh/go-spew/spew			 ------------------------------- 100.00% (505/505)
+
diff --git a/vendor/github.com/docker/distribution/.gitignore b/vendor/github.com/docker/distribution/.gitignore
new file mode 100644
index 0000000..1c3ae0a
--- /dev/null
+++ b/vendor/github.com/docker/distribution/.gitignore
@@ -0,0 +1,37 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
+
+# never checkin from the bin file (for now)
+bin/*
+
+# Test key files
+*.pem
+
+# Cover profiles
+*.out
+
+# Editor/IDE specific files.
+*.sublime-project
+*.sublime-workspace
diff --git a/vendor/github.com/docker/distribution/.mailmap b/vendor/github.com/docker/distribution/.mailmap
new file mode 100644
index 0000000..2d68669
--- /dev/null
+++ b/vendor/github.com/docker/distribution/.mailmap
@@ -0,0 +1,19 @@
+Stephen J Day <stephen.day@docker.com>  Stephen Day <stevvooe@users.noreply.github.com>
+Stephen J Day <stephen.day@docker.com>  Stephen Day <stevvooe@gmail.com>
+Olivier Gambier <olivier@docker.com>    Olivier Gambier <dmp42@users.noreply.github.com>
+Brian Bland <brian.bland@docker.com>    Brian Bland <r4nd0m1n4t0r@gmail.com>
+Brian Bland <brian.bland@docker.com> Brian Bland <brian.t.bland@gmail.com>
+Josh Hawn <josh.hawn@docker.com>        Josh Hawn <jlhawn@berkeley.edu>
+Richard Scothern <richard.scothern@docker.com> Richard <richard.scothern@gmail.com>
+Richard Scothern <richard.scothern@docker.com> Richard Scothern <richard.scothern@gmail.com>
+Andrew Meredith <andymeredith@gmail.com> Andrew Meredith <kendru@users.noreply.github.com>
+harche <p.harshal@gmail.com> harche <harche@users.noreply.github.com>
+Jessie Frazelle <jessie@docker.com>  <jfrazelle@users.noreply.github.com>
+Sharif Nassar <sharif@mrwacky.com> Sharif Nassar <mrwacky42@users.noreply.github.com>
+Sven Dowideit <SvenDowideit@home.org.au> Sven Dowideit <SvenDowideit@users.noreply.github.com>
+Vincent Giersch <vincent.giersch@ovh.net> Vincent Giersch <vincent@giersch.fr>
+davidli <wenquan.li@hp.com> davidli <wenquan.li@hpe.com>
+Omer Cohen <git@omer.io> Omer Cohen <git@omerc.net>
+Eric Yang <windfarer@gmail.com> Eric Yang <Windfarer@users.noreply.github.com>
+Nikita Tarasov <nikita@mygento.ru> Nikita <luckyraul@users.noreply.github.com>
+Misty Stanley-Jones <misty@docker.com>  Misty Stanley-Jones <misty@apache.org>
diff --git a/vendor/github.com/docker/distribution/AUTHORS b/vendor/github.com/docker/distribution/AUTHORS
new file mode 100644
index 0000000..aaf0298
--- /dev/null
+++ b/vendor/github.com/docker/distribution/AUTHORS
@@ -0,0 +1,182 @@
+Aaron Lehmann <aaron.lehmann@docker.com>
+Aaron Schlesinger <aschlesinger@deis.com>
+Aaron Vinson <avinson.public@gmail.com>
+Adam Duke <adam.v.duke@gmail.com>
+Adam Enger <adamenger@gmail.com>
+Adrian Mouat <adrian.mouat@gmail.com>
+Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>
+Alex Chan <alex.chan@metaswitch.com>
+Alex Elman <aelman@indeed.com>
+Alexey Gladkov <gladkov.alexey@gmail.com>
+allencloud <allen.sun@daocloud.io>
+amitshukla <ashukla73@hotmail.com>
+Amy Lindburg <amy.lindburg@docker.com>
+Andrew Hsu <andrewhsu@acm.org>
+Andrew Meredith <andymeredith@gmail.com>
+Andrew T Nguyen <andrew.nguyen@docker.com>
+Andrey Kostov <kostov.andrey@gmail.com>
+Andy Goldstein <agoldste@redhat.com>
+Anis Elleuch <vadmeste@gmail.com>
+Antonio Mercado <amercado@thinknode.com>
+Antonio Murdaca <runcom@redhat.com>
+Anton Tiurin <noxiouz@yandex.ru>
+Anusha Ragunathan <anusha@docker.com>
+a-palchikov <deemok@gmail.com>
+Arien Holthuizen <aholthuizen@schubergphilis.com>
+Arnaud Porterie <arnaud.porterie@docker.com>
+Arthur Baars <arthur@semmle.com>
+Asuka Suzuki <hello@tanksuzuki.com>
+Avi Miller <avi.miller@oracle.com>
+Ayose Cazorla <ayosec@gmail.com>
+BadZen <dave.trombley@gmail.com>
+Ben Bodenmiller <bbodenmiller@hotmail.com>
+Ben Firshman <ben@firshman.co.uk>
+bin liu <liubin0329@gmail.com>
+Brian Bland <brian.bland@docker.com>
+burnettk <burnettk@gmail.com>
+Carson A <ca@carsonoid.net>
+Cezar Sa Espinola <cezarsa@gmail.com>
+Charles Smith <charles.smith@docker.com>
+Chris Dillon <squarism@gmail.com>
+cuiwei13 <cuiwei13@pku.edu.cn>
+cyli <cyli@twistedmatrix.com>
+Daisuke Fujita <dtanshi45@gmail.com>
+Daniel Huhn <daniel@danielhuhn.de>
+Darren Shepherd <darren@rancher.com>
+Dave Trombley <dave.trombley@gmail.com>
+Dave Tucker <dt@docker.com>
+David Lawrence <david.lawrence@docker.com>
+davidli <wenquan.li@hp.com>
+David Verhasselt <david@crowdway.com>
+David Xia <dxia@spotify.com>
+Dejan Golja <dejan@golja.org>
+Derek McGowan <derek@mcgstyle.net>
+Diogo Mónica <diogo.monica@gmail.com>
+DJ Enriquez <dj.enriquez@infospace.com>
+Donald Huang <don.hcd@gmail.com>
+Doug Davis <dug@us.ibm.com>
+Edgar Lee <edgar.lee@docker.com>
+Eric Yang <windfarer@gmail.com>
+Fabio Berchtold <jamesclonk@jamesclonk.ch>
+Fabio Huser <fabio@fh1.ch>
+farmerworking <farmerworking@gmail.com>
+Felix Yan <felixonmars@archlinux.org>
+Florentin Raud <florentin.raud@gmail.com>
+Frank Chen <frankchn@gmail.com>
+Frederick F. Kautz IV <fkautz@alumni.cmu.edu>
+gabriell nascimento <gabriell@bluesoft.com.br>
+Gleb Schukin <gschukin@ptsecurity.com>
+harche <p.harshal@gmail.com>
+Henri Gomez <henri.gomez@gmail.com>
+Hua Wang <wanghua.humble@gmail.com>
+Hu Keping <hukeping@huawei.com>
+HuKeping <hukeping@huawei.com>
+Ian Babrou <ibobrik@gmail.com>
+igayoso <igayoso@gmail.com>
+Jack Griffin <jackpg14@gmail.com>
+James Findley <jfindley@fastmail.com>
+Jason Freidman <jason.freidman@gmail.com>
+Jason Heiss <jheiss@aput.net>
+Jeff Nickoloff <jeff@allingeek.com>
+Jess Frazelle <acidburn@google.com>
+Jessie Frazelle <jessie@docker.com>
+jhaohai <jhaohai@foxmail.com>
+Jianqing Wang <tsing@jianqing.org>
+Jihoon Chung <jihoon@gmail.com>
+Joao Fernandes <joao.fernandes@docker.com>
+John Mulhausen <john@docker.com>
+John Starks <jostarks@microsoft.com>
+Jonathan Boulle <jonathanboulle@gmail.com>
+Jon Johnson <jonjohnson@google.com>
+Jon Poler <jonathan.poler@apcera.com>
+Jordan Liggitt <jliggitt@redhat.com>
+Josh Chorlton <josh.chorlton@docker.com>
+Josh Hawn <josh.hawn@docker.com>
+Julien Fernandez <julien.fernandez@gmail.com>
+Keerthan Mala <kmala@engineyard.com>
+Kelsey Hightower <kelsey.hightower@gmail.com>
+Kenneth Lim <kennethlimcp@gmail.com>
+Kenny Leung <kleung@google.com>
+Ke Xu <leonhartx.k@gmail.com>
+liuchang0812 <liuchang0812@gmail.com>
+Liu Hua <sdu.liu@huawei.com>
+Li Yi <denverdino@gmail.com>
+Lloyd Ramey <lnr0626@gmail.com>
+Louis Kottmann <louis.kottmann@gmail.com>
+Luke Carpenter <x@rubynerd.net>
+Marcus Martins <marcus@docker.com>
+Mary Anthony <mary@docker.com>
+Matt Bentley <mbentley@mbentley.net>
+Matt Duch <matt@learnmetrics.com>
+Matthew Green <greenmr@live.co.uk>
+Matt Moore <mattmoor@google.com>
+Matt Robenolt <matt@ydekproductions.com>
+Michael Prokop <mika@grml.org>
+Michal Minar <miminar@redhat.com>
+Michal Minář <miminar@redhat.com>
+Mike Brown <brownwm@us.ibm.com>
+Miquel Sabaté <msabate@suse.com>
+Misty Stanley-Jones <misty@docker.com>
+Morgan Bauer <mbauer@us.ibm.com>
+moxiegirl <mary@docker.com>
+Nathan Sullivan <nathan@nightsys.net>
+nevermosby <robolwq@qq.com>
+Nghia Tran <tcnghia@gmail.com>
+Nikita Tarasov <nikita@mygento.ru>
+Noah Treuhaft <noah.treuhaft@docker.com>
+Nuutti Kotivuori <nuutti.kotivuori@poplatek.fi>
+Oilbeater <liumengxinfly@gmail.com>
+Olivier Gambier <olivier@docker.com>
+Olivier Jacques <olivier.jacques@hp.com>
+Omer Cohen <git@omer.io>
+Patrick Devine <patrick.devine@docker.com>
+Phil Estes <estesp@linux.vnet.ibm.com>
+Philip Misiowiec <philip@atlashealth.com>
+Pierre-Yves Ritschard <pyr@spootnik.org>
+Qiao Anran <qiaoanran@gmail.com>
+Randy Barlow <randy@electronsweatshop.com>
+Richard Scothern <richard.scothern@docker.com>
+Rodolfo Carvalho <rhcarvalho@gmail.com>
+Rusty Conover <rusty@luckydinosaur.com>
+Sean Boran <Boran@users.noreply.github.com>
+Sebastiaan van Stijn <github@gone.nl>
+Sebastien Coavoux <s.coavoux@free.fr>
+Serge Dubrouski <sergeyfd@gmail.com>
+Sharif Nassar <sharif@mrwacky.com>
+Shawn Falkner-Horine <dreadpirateshawn@gmail.com>
+Shreyas Karnik <karnik.shreyas@gmail.com>
+Simon Thulbourn <simon+github@thulbourn.com>
+spacexnice <yaoyao.xyy@alibaba-inc.com>
+Spencer Rinehart <anubis@overthemonkey.com>
+Stan Hu <stanhu@gmail.com>
+Stefan Majewsky <stefan.majewsky@sap.com>
+Stefan Weil <sw@weilnetz.de>
+Stephen J Day <stephen.day@docker.com>
+Sungho Moon <sungho.moon@navercorp.com>
+Sven Dowideit <SvenDowideit@home.org.au>
+Sylvain Baubeau <sbaubeau@redhat.com>
+Ted Reed <ted.reed@gmail.com>
+tgic <farmer1992@gmail.com>
+Thomas Sjögren <konstruktoid@users.noreply.github.com>
+Tianon Gravi <admwiggin@gmail.com>
+Tibor Vass <teabee89@gmail.com>
+Tonis Tiigi <tonistiigi@gmail.com>
+Tony Holdstock-Brown <tony@docker.com>
+Trevor Pounds <trevor.pounds@gmail.com>
+Troels Thomsen <troels@thomsen.io>
+Victoria Bialas <victoria.bialas@docker.com>
+Victor Vieux <vieux@docker.com>
+Vincent Batts <vbatts@redhat.com>
+Vincent Demeester <vincent@sbr.pm>
+Vincent Giersch <vincent.giersch@ovh.net>
+weiyuan.yl <weiyuan.yl@alibaba-inc.com>
+W. Trevor King <wking@tremily.us>
+xg.song <xg.song@venusource.com>
+xiekeyang <xiekeyang@huawei.com>
+Yann ROBERT <yann.robert@anantaplex.fr>
+yaoyao.xyy <yaoyao.xyy@alibaba-inc.com>
+yixi zhang <yixi@memsql.com>
+yuexiao-wang <wang.yuexiao@zte.com.cn>
+yuzou <zouyu7@huawei.com>
+zhouhaibing089 <zhouhaibing089@gmail.com>
+姜继忠 <jizhong.jiangjz@alibaba-inc.com>
diff --git a/vendor/github.com/docker/distribution/BUILDING.md b/vendor/github.com/docker/distribution/BUILDING.md
new file mode 100644
index 0000000..2d5a101
--- /dev/null
+++ b/vendor/github.com/docker/distribution/BUILDING.md
@@ -0,0 +1,119 @@
+
+# Building the registry source
+
+## Use-case
+
+This is useful if you intend to actively work on the registry.
+
+### Alternatives
+
+Most people should use the [official Registry docker image](https://hub.docker.com/r/library/registry/).
+
+People looking for advanced operational use cases might consider rolling their own image with a custom Dockerfile inheriting `FROM registry:2`.
+
+OS X users who want to run natively can do so following [the instructions here](https://github.com/docker/docker.github.io/blob/master/registry/recipes/osx-setup-guide.md).
+
+### Gotchas
+
+You are expected to know your way around with go & git.
+
+If you are a casual user with no development experience, and no preliminary knowledge of go, building from source is probably not a good solution for you.
+
+## Build the development environment
+
+The first prerequisite of properly building distribution targets is to have a Go
+development environment setup. Please follow [How to Write Go Code](https://golang.org/doc/code.html)
+for proper setup. If done correctly, you should have a GOROOT and GOPATH set in the
+environment.
+
+If a Go development environment is setup, one can use `go get` to install the
+`registry` command from the current latest:
+
+    go get github.com/docker/distribution/cmd/registry
+
+The above will install the source repository into the `GOPATH`.
+
+Now create the directory for the registry data (this might require you to set permissions properly)
+
+    mkdir -p /var/lib/registry
+
+... or alternatively `export REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY=/somewhere` if you want to store data into another location.
+
+The `registry`
+binary can then be run with the following:
+
+    $ $GOPATH/bin/registry --version
+    $GOPATH/bin/registry github.com/docker/distribution v2.0.0-alpha.1+unknown
+
+> __NOTE:__ While you do not need to use `go get` to checkout the distribution
+> project, for these build instructions to work, the project must be checked
+> out in the correct location in the `GOPATH`. This should almost always be
+> `$GOPATH/src/github.com/docker/distribution`.
+
+The registry can be run with the default config using the following
+incantation:
+
+    $ $GOPATH/bin/registry serve $GOPATH/src/github.com/docker/distribution/cmd/registry/config-example.yml
+    INFO[0000] endpoint local-5003 disabled, skipping        app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
+    INFO[0000] endpoint local-8083 disabled, skipping        app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
+    INFO[0000] listening on :5000                            app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
+    INFO[0000] debug server listening localhost:5001
+
+If it is working, one should see the above log messages.
+
+### Repeatable Builds
+
+For the full development experience, one should `cd` into
+`$GOPATH/src/github.com/docker/distribution`. From there, the regular `go`
+commands, such as `go test`, should work per package (please see
+[Developing](#developing) if they don't work).
+
+A `Makefile` has been provided as a convenience to support repeatable builds.
+Please install the following into `GOPATH` for it to work:
+
+    go get github.com/tools/godep github.com/golang/lint/golint
+
+**TODO(stevvooe):** Add a `make setup` command to Makefile to run this. Have to think about how to interact with Godeps properly.
+
+Once these commands are available in the `GOPATH`, run `make` to get a full
+build:
+
+    $ make
+    + clean
+    + fmt
+    + vet
+    + lint
+    + build
+    github.com/docker/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar
+    github.com/Sirupsen/logrus
+    github.com/docker/libtrust
+    ...
+    github.com/yvasiyarov/gorelic
+    github.com/docker/distribution/registry/handlers
+    github.com/docker/distribution/cmd/registry
+    + test
+    ...
+    ok    github.com/docker/distribution/digest 7.875s
+    ok    github.com/docker/distribution/manifest 0.028s
+    ok    github.com/docker/distribution/notifications  17.322s
+    ?     github.com/docker/distribution/registry [no test files]
+    ok    github.com/docker/distribution/registry/api/v2  0.101s
+    ?     github.com/docker/distribution/registry/auth  [no test files]
+    ok    github.com/docker/distribution/registry/auth/silly  0.011s
+    ...
+    + /Users/sday/go/src/github.com/docker/distribution/bin/registry
+    + /Users/sday/go/src/github.com/docker/distribution/bin/registry-api-descriptor-template
+    + binaries
+
+The above provides a repeatable build using the contents of the vendored
+Godeps directory. This includes formatting, vetting, linting, building,
+testing and generating tagged binaries. We can verify this worked by running
+the registry binary generated in the "./bin" directory:
+
+    $ ./bin/registry -version
+    ./bin/registry github.com/docker/distribution v2.0.0-alpha.2-80-g16d8b2c.m
+
+### Optional build tags
+
+Optional [build tags](http://golang.org/pkg/go/build/) can be provided using
+the environment variable `DOCKER_BUILDTAGS`.
diff --git a/vendor/github.com/docker/distribution/CHANGELOG.md b/vendor/github.com/docker/distribution/CHANGELOG.md
new file mode 100644
index 0000000..b1a5c68
--- /dev/null
+++ b/vendor/github.com/docker/distribution/CHANGELOG.md
@@ -0,0 +1,114 @@
+# Changelog
+
+## 2.6.1 (2017-04-05)
+
+#### Registry
+- Fix `Forwarded` header handling, revert use of `X-Forwarded-Port`
+- Use driver `Stat` for registry health check
+
+## 2.6.0 (2017-01-18)
+
+#### Storage
+- S3: fixed bug in delete due to read-after-write inconsistency
+- S3: allow EC2 IAM roles to be used when authorizing region endpoints
+- S3: add Object ACL Support
+- S3: fix delete method's notion of subpaths
+- S3: use multipart upload API in `Move` method for performance
+- S3: add v2 signature signing for legacy S3 clones
+- Swift: add simple heuristic to detect incomplete DLOs during read ops
+- Swift: support different user and tenant domains
+- Swift: bulk deletes in chunks
+- Aliyun OSS: fix delete method's notion of subpaths
+- Aliyun OSS: optimize data copy after upload finishes
+- Azure: close leaking response body
+- Fix storage drivers dropping non-EOF errors when listing repositories
+- Compare path properly when listing repositories in catalog
+- Add a foreign layer URL host whitelist
+- Improve catalog enumerate runtime
+
+#### Registry
+- Export `storage.CreateOptions` in top-level package
+- Enable notifications to endpoints that use self-signed certificates
+- Properly validate multi-URL foreign layers
+- Add control over validation of URLs in pushed manifests
+- Proxy mode: fix socket leak when pull is cancelled
+- Tag service: properly handle error responses on HEAD request
+- Support for custom authentication URL in proxying registry
+- Add configuration option to disable access logging
+- Add notification filtering by target media type
+- Manifest: `References()` returns all children
+- Honor `X-Forwarded-Port` and Forwarded headers
+- Reference: Preserve tag and digest in With* functions
+- Add policy configuration for enforcing repository classes
+
+#### Client
+- Changes the client Tags `All()` method to follow links
+- Allow registry clients to connect via HTTP2
+- Better handling of OAuth errors in client
+  
+#### Spec
+- Manifest: clarify relationship between urls and foreign layers
+- Authorization: add support for repository classes
+
+#### Manifest
+- Override media type returned from `Stat()` for existing manifests
+- Add plugin mediatype to distribution manifest
+
+#### Docs
+- Document `TOOMANYREQUESTS` error code
+- Document required Let's Encrypt port
+- Improve documentation around implementation of OAuth2
+- Improve documentation for configuration
+
+#### Auth
+- Add support for registry type in scope
+- Add support for using v2 ping challenges for v1
+- Add leeway to JWT `nbf` and `exp` checking
+- htpasswd: dynamically parse htpasswd file
+- Fix missing auth headers with PATCH HTTP request when pushing to default port
+
+#### Dockerfile
+- Update to go1.7
+- Reorder Dockerfile steps for better layer caching
+
+#### Notes
+
+Documentation has moved to the documentation repository at
+`github.com/docker/docker.github.io/tree/master/registry`
+
+The registry is go 1.7 compliant, and passes newer, more restrictive `lint` and `vet` ing.
+
+
+## 2.5.0 (2016-06-14)
+
+#### Storage
+- Ensure uploads directory is cleaned after upload is committed
+- Add ability to cap concurrent operations in filesystem driver
+- S3: Add 'us-gov-west-1' to the valid region list
+- Swift: Handle ceph not returning Last-Modified header for HEAD requests
+- Add redirect middleware
+
+#### Registry
+- Add support for blobAccessController middleware
+- Add support for layers from foreign sources
+- Remove signature store
+- Add support for Let's Encrypt
+- Correct yaml key names in configuration
+
+#### Client
+- Add option to get content digest from manifest get
+
+#### Spec
+- Update the auth spec scope grammar to reflect the fact that hostnames are optionally supported
+- Clarify API documentation around catalog fetch behavior
+
+#### API
+- Support returning HTTP 429 (Too Many Requests)
+
+#### Documentation
+- Update auth documentation examples to show "expires in" as int
+
+#### Docker Image
+- Use Alpine Linux as base image
+
+
diff --git a/vendor/github.com/docker/distribution/CONTRIBUTING.md b/vendor/github.com/docker/distribution/CONTRIBUTING.md
new file mode 100644
index 0000000..7cc7aed
--- /dev/null
+++ b/vendor/github.com/docker/distribution/CONTRIBUTING.md
@@ -0,0 +1,140 @@
+# Contributing to the registry
+
+## Before reporting an issue...
+
+### If your problem is with...
+
+ - automated builds
+ - your account on the [Docker Hub](https://hub.docker.com/)
+ - any other [Docker Hub](https://hub.docker.com/) issue
+
+Then please do not report your issue here - you should instead report it to [https://support.docker.com](https://support.docker.com)
+
+### If you...
+
+ - need help setting up your registry
+ - can't figure out something
+ - are not sure what's going on or what your problem is
+
+Then please do not open an issue here yet - you should first try one of the following support forums:
+
+ - irc: #docker-distribution on freenode
+ - mailing-list: <distribution@dockerproject.org> or https://groups.google.com/a/dockerproject.org/forum/#!forum/distribution
+
+## Reporting an issue properly
+
+By following these simple rules you will get better and faster feedback on your issue.
+
+ - search the bugtracker for an already reported issue
+
+### If you found an issue that describes your problem:
+
+ - please read other user comments first, and confirm this is the same issue: a given error condition might be indicative of different problems - you may also find a workaround in the comments
+ - please refrain from adding "same thing here" or "+1" comments
+ - you don't need to comment on an issue to get notified of updates: just hit the "subscribe" button
+ - comment if you have some new, technical and relevant information to add to the case
+ - __DO NOT__ comment on closed issues or merged PRs. If you think you have a related problem, open up a new issue and reference the PR or issue.
+
+### If you have not found an existing issue that describes your problem:
+
+ 1. create a new issue, with a succinct title that describes your issue:
+   - bad title: "It doesn't work with my docker"
+   - good title: "Private registry push fail: 400 error with E_INVALID_DIGEST"
+ 2. copy the output of:
+   - `docker version`
+   - `docker info`
+   - `docker exec <registry-container> registry -version`
+ 3. copy the command line you used to launch your Registry
+ 4. restart your docker daemon in debug mode (add `-D` to the daemon launch arguments)
+ 5. reproduce your problem and get your docker daemon logs showing the error
+ 6. if relevant, copy your registry logs that show the error
+ 7. provide any relevant detail about your specific Registry configuration (e.g., storage backend used)
+ 8. indicate if you are using an enterprise proxy, Nginx, or anything else between you and your Registry
+
+## Contributing a patch for a known bug, or a small correction
+
+You should follow the basic GitHub workflow:
+
+ 1. fork
+ 2. commit a change
+ 3. make sure the tests pass
+ 4. PR
+
+Additionally, you must [sign your commits](https://github.com/docker/docker/blob/master/CONTRIBUTING.md#sign-your-work). It's very simple:
+
+ - configure your name with git: `git config user.name "Real Name" && git config user.email mail@example.com`
+ - sign your commits using `-s`: `git commit -s -m "My commit"`
+
+Some simple rules to ensure quick merge:
+
+ - clearly point to the issue(s) you want to fix in your PR comment (e.g., `closes #12345`)
+ - prefer multiple (smaller) PRs addressing individual issues over a big one trying to address multiple issues at once
+ - if you need to amend your PR following comments, please squash instead of adding more commits
+
+## Contributing new features
+
+You are heavily encouraged to first discuss what you want to do. You can do so on the irc channel, or by opening an issue that clearly describes the use case you want to fulfill, or the problem you are trying to solve.
+
+If this is a major new feature, you should then submit a proposal that describes your technical solution and reasoning.
+If you did discuss it first, this will likely be greenlighted very fast. It's advisable to address all feedback on this proposal before starting actual work.
+
+Then you should submit your implementation, clearly linking to the issue (and possible proposal).
+
+Your PR will be reviewed by the community, then ultimately by the project maintainers, before being merged.
+
+It's mandatory to:
+
+ - interact respectfully with other community members and maintainers - more generally, you are expected to abide by the [Docker community rules](https://github.com/docker/docker/blob/master/CONTRIBUTING.md#docker-community-guidelines)
+ - address maintainers' comments and modify your submission accordingly
+ - write tests for any new code
+
+Complying to these simple rules will greatly accelerate the review process, and will ensure you have a pleasant experience in contributing code to the Registry.
+
+Have a look at a great, successful contribution: the [Swift driver PR](https://github.com/docker/distribution/pull/493)
+
+## Coding Style
+
+Unless explicitly stated, we follow all coding guidelines from the Go
+community. While some of these standards may seem arbitrary, they somehow seem
+to result in a solid, consistent codebase.
+
+It is possible that the code base does not currently comply with these
+guidelines. We are not looking for a massive PR that fixes this, since that
+goes against the spirit of the guidelines. All new contributions should make a
+best effort to clean up and make the code base better than they left it.
+Obviously, apply your best judgement. Remember, the goal here is to make the
+code base easier for humans to navigate and understand. Always keep that in
+mind when nudging others to comply.
+
+The rules:
+
+1. All code should be formatted with `gofmt -s`.
+2. All code should pass the default levels of
+   [`golint`](https://github.com/golang/lint).
+3. All code should follow the guidelines covered in [Effective
+   Go](http://golang.org/doc/effective_go.html) and [Go Code Review
+   Comments](https://github.com/golang/go/wiki/CodeReviewComments).
+4. Comment the code. Tell us the why, the history and the context.
+5. Document _all_ declarations and methods, even private ones. Declare
+   expectations, caveats and anything else that may be important. If a type
+   gets exported, having the comments already there will ensure it's ready.
+6. Variable name length should be proportional to its context and no longer.
+   `noCommaALongVariableNameLikeThisIsNotMoreClearWhenASimpleCommentWouldDo`.
+   In practice, short methods will have short variable names and globals will
+   have longer names.
+7. No underscores in package names. If you need a compound name, step back,
+   and re-examine why you need a compound name. If you still think you need a
+   compound name, lose the underscore.
+8. No utils or helpers packages. If a function is not general enough to
+   warrant its own package, it has not been written generally enough to be a
+   part of a util package. Just leave it unexported and well-documented.
+9. All tests should run with `go test` and outside tooling should not be
+   required. No, we don't need another unit testing framework. Assertion
+   packages are acceptable if they provide _real_ incremental value.
+10. Even though we call these "rules" above, they are actually just
+    guidelines. Since you've read all the rules, you now know that.
+
+If you are having trouble getting into the mood of idiomatic Go, we recommend
+reading through [Effective Go](http://golang.org/doc/effective_go.html). The
+[Go Blog](http://blog.golang.org/) is also a great resource. Drinking the
+kool-aid is a lot easier than going thirsty.
diff --git a/vendor/github.com/docker/distribution/Dockerfile b/vendor/github.com/docker/distribution/Dockerfile
new file mode 100644
index 0000000..426954a
--- /dev/null
+++ b/vendor/github.com/docker/distribution/Dockerfile
@@ -0,0 +1,18 @@
+FROM golang:1.7-alpine
+
+ENV DISTRIBUTION_DIR /go/src/github.com/docker/distribution
+ENV DOCKER_BUILDTAGS include_oss include_gcs
+
+RUN set -ex \
+    && apk add --no-cache make git
+
+WORKDIR $DISTRIBUTION_DIR
+COPY . $DISTRIBUTION_DIR
+COPY cmd/registry/config-dev.yml /etc/docker/registry/config.yml
+
+RUN make PREFIX=/go clean binaries
+
+VOLUME ["/var/lib/registry"]
+EXPOSE 5000
+ENTRYPOINT ["registry"]
+CMD ["serve", "/etc/docker/registry/config.yml"]
diff --git a/vendor/github.com/docker/distribution/LICENSE b/vendor/github.com/docker/distribution/LICENSE
new file mode 100644
index 0000000..e06d208
--- /dev/null
+++ b/vendor/github.com/docker/distribution/LICENSE
@@ -0,0 +1,202 @@
+Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
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+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      "Contribution" shall mean any work of authorship, including
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+      You may add Your own copyright statement to Your modifications and
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+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+   7. Disclaimer of Warranty. Unless required by applicable law or
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
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+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
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+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
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+   Copyright {yyyy} {name of copyright owner}
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
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+
diff --git a/vendor/github.com/docker/distribution/MAINTAINERS b/vendor/github.com/docker/distribution/MAINTAINERS
new file mode 100644
index 0000000..bda4001
--- /dev/null
+++ b/vendor/github.com/docker/distribution/MAINTAINERS
@@ -0,0 +1,58 @@
+# Distribution maintainers file
+#
+# This file describes who runs the docker/distribution project and how.
+# This is a living document - if you see something out of date or missing, speak up!
+#
+# It is structured to be consumable by both humans and programs.
+# To extract its contents programmatically, use any TOML-compliant parser.
+#
+# This file is compiled into the MAINTAINERS file in docker/opensource.
+#
+[Org]
+	[Org."Core maintainers"]
+		people = [
+			"aaronlehmann",
+			"dmcgowan",
+			"dmp42",
+			"richardscothern",
+			"shykes",
+			"stevvooe",
+		]
+
+[people]
+
+# A reference list of all people associated with the project.
+# All other sections should refer to people by their canonical key
+# in the people section.
+
+	# ADD YOURSELF HERE IN ALPHABETICAL ORDER
+
+	[people.aaronlehmann]
+	Name = "Aaron Lehmann"
+	Email = "aaron.lehmann@docker.com"
+	GitHub = "aaronlehmann"
+
+	[people.dmcgowan]
+	Name = "Derek McGowan"
+	Email = "derek@mcgstyle.net"
+	GitHub = "dmcgowan"
+
+	[people.dmp42]
+	Name = "Olivier Gambier"
+	Email = "olivier@docker.com"
+	GitHub = "dmp42"
+
+	[people.richardscothern]
+	Name = "Richard Scothern"
+	Email = "richard.scothern@gmail.com"
+	GitHub = "richardscothern"
+
+	[people.shykes]
+	Name = "Solomon Hykes"
+	Email = "solomon@docker.com"
+	GitHub = "shykes"
+
+	[people.stevvooe]
+	Name = "Stephen Day"
+	Email = "stephen.day@docker.com"
+	GitHub = "stevvooe"
diff --git a/vendor/github.com/docker/distribution/Makefile b/vendor/github.com/docker/distribution/Makefile
new file mode 100644
index 0000000..47b8f1d
--- /dev/null
+++ b/vendor/github.com/docker/distribution/Makefile
@@ -0,0 +1,109 @@
+# Set an output prefix, which is the local directory if not specified
+PREFIX?=$(shell pwd)
+
+
+# Used to populate version variable in main package.
+VERSION=$(shell git describe --match 'v[0-9]*' --dirty='.m' --always)
+
+# Allow turning off function inlining and variable registerization
+ifeq (${DISABLE_OPTIMIZATION},true)
+	GO_GCFLAGS=-gcflags "-N -l"
+	VERSION:="$(VERSION)-noopt"
+endif
+
+GO_LDFLAGS=-ldflags "-X `go list ./version`.Version=$(VERSION)"
+
+.PHONY: all build binaries clean dep-restore dep-save dep-validate fmt lint test test-full vet
+.DEFAULT: all
+all: fmt vet lint build test binaries
+
+AUTHORS: .mailmap .git/HEAD
+	 git log --format='%aN <%aE>' | sort -fu > $@
+
+# This only needs to be generated by hand when cutting full releases.
+version/version.go:
+	./version/version.sh > $@
+
+# Required for go 1.5 to build
+GO15VENDOREXPERIMENT := 1
+
+# Go files
+GOFILES=$(shell find . -type f -name '*.go')
+
+# Package list
+PKGS=$(shell go list -tags "${DOCKER_BUILDTAGS}" ./... | grep -v ^github.com/docker/distribution/vendor/)
+
+# Resolving binary dependencies for specific targets
+GOLINT=$(shell which golint || echo '')
+GODEP=$(shell which godep || echo '')
+
+${PREFIX}/bin/registry: $(GOFILES)
+	@echo "+ $@"
+	@go build -tags "${DOCKER_BUILDTAGS}" -o $@ ${GO_LDFLAGS}  ${GO_GCFLAGS} ./cmd/registry
+
+${PREFIX}/bin/digest:  $(GOFILES)
+	@echo "+ $@"
+	@go build -tags "${DOCKER_BUILDTAGS}" -o $@ ${GO_LDFLAGS}  ${GO_GCFLAGS} ./cmd/digest
+
+${PREFIX}/bin/registry-api-descriptor-template: $(GOFILES)
+	@echo "+ $@"
+	@go build -o $@ ${GO_LDFLAGS} ${GO_GCFLAGS} ./cmd/registry-api-descriptor-template
+
+docs/spec/api.md: docs/spec/api.md.tmpl ${PREFIX}/bin/registry-api-descriptor-template
+	./bin/registry-api-descriptor-template $< > $@
+
+vet:
+	@echo "+ $@"
+	@go vet -tags "${DOCKER_BUILDTAGS}" $(PKGS)
+
+fmt:
+	@echo "+ $@"
+	@test -z "$$(gofmt -s -l . 2>&1 | grep -v ^vendor/ | tee /dev/stderr)" || \
+		(echo >&2 "+ please format Go code with 'gofmt -s'" && false)
+
+lint:
+	@echo "+ $@"
+	$(if $(GOLINT), , \
+		$(error Please install golint: `go get -u github.com/golang/lint/golint`))
+	@test -z "$$($(GOLINT) ./... 2>&1 | grep -v ^vendor/ | tee /dev/stderr)"
+
+build:
+	@echo "+ $@"
+	@go build -tags "${DOCKER_BUILDTAGS}" -v ${GO_LDFLAGS} $(PKGS)
+
+test:
+	@echo "+ $@"
+	@go test -test.short -tags "${DOCKER_BUILDTAGS}" $(PKGS)
+
+test-full:
+	@echo "+ $@"
+	@go test -tags "${DOCKER_BUILDTAGS}" $(PKGS)
+
+binaries: ${PREFIX}/bin/registry ${PREFIX}/bin/digest ${PREFIX}/bin/registry-api-descriptor-template
+	@echo "+ $@"
+
+clean:
+	@echo "+ $@"
+	@rm -rf "${PREFIX}/bin/registry" "${PREFIX}/bin/digest" "${PREFIX}/bin/registry-api-descriptor-template"
+
+dep-save:
+	@echo "+ $@"
+	$(if $(GODEP), , \
+		$(error Please install godep: go get github.com/tools/godep))
+	@$(GODEP) save $(PKGS)
+
+dep-restore:
+	@echo "+ $@"
+	$(if $(GODEP), , \
+		$(error Please install godep: go get github.com/tools/godep))
+	@$(GODEP) restore -v
+
+dep-validate: dep-restore
+	@echo "+ $@"
+	@rm -Rf .vendor.bak
+	@mv vendor .vendor.bak
+	@rm -Rf Godeps
+	@$(GODEP) save ./...
+	@test -z "$$(diff -r vendor .vendor.bak 2>&1 | tee /dev/stderr)" || \
+		(echo >&2 "+ borked dependencies! what you have in Godeps/Godeps.json does not match with what you have in vendor" && false)
+	@rm -Rf .vendor.bak
diff --git a/vendor/github.com/docker/distribution/README.md b/vendor/github.com/docker/distribution/README.md
new file mode 100644
index 0000000..a6e8db0
--- /dev/null
+++ b/vendor/github.com/docker/distribution/README.md
@@ -0,0 +1,131 @@
+# Distribution
+
+The Docker toolset to pack, ship, store, and deliver content.
+
+This repository's main product is the Docker Registry 2.0 implementation
+for storing and distributing Docker images. It supersedes the
+[docker/docker-registry](https://github.com/docker/docker-registry)
+project with a new API design, focused around security and performance.
+
+<img src="https://www.docker.com/sites/default/files/oyster-registry-3.png" width=200px/>
+
+[![Circle CI](https://circleci.com/gh/docker/distribution/tree/master.svg?style=svg)](https://circleci.com/gh/docker/distribution/tree/master)
+[![GoDoc](https://godoc.org/github.com/docker/distribution?status.svg)](https://godoc.org/github.com/docker/distribution)
+
+This repository contains the following components:
+
+|**Component**       |Description                                                                                                                                                                                         |
+|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **registry**       | An implementation of the [Docker Registry HTTP API V2](docs/spec/api.md) for use with docker 1.6+.                                                                                                  |
+| **libraries**      | A rich set of libraries for interacting with distribution components. Please see [godoc](https://godoc.org/github.com/docker/distribution) for details. **Note**: These libraries are **unstable**. |
+| **specifications** | _Distribution_ related specifications are available in [docs/spec](docs/spec)                                                                                                                        |
+| **documentation**  | Docker's full documentation set is available at [docs.docker.com](https://docs.docker.com). This repository [contains the subset](docs/) related just to the registry.                                                                                                                                          |
+
+### How does this integrate with Docker engine?
+
+This project should provide an implementation to a V2 API for use in the [Docker
+core project](https://github.com/docker/docker). The API should be embeddable
+and simplify the process of securely pulling and pushing content from `docker`
+daemons.
+
+### What are the long term goals of the Distribution project?
+
+The _Distribution_ project has the further long term goal of providing a
+secure tool chain for distributing content. The specifications, APIs and tools
+should be as useful with Docker as they are without.
+
+Our goal is to design a professional grade and extensible content distribution
+system that allow users to:
+
+* Enjoy an efficient, secured and reliable way to store, manage, package and
+  exchange content
+* Hack/roll their own on top of healthy open-source components
+* Implement their own home made solution through good specs, and solid
+  extensions mechanism.
+
+## More about Registry 2.0
+
+The new registry implementation provides the following benefits:
+
+- faster push and pull
+- new, more efficient implementation
+- simplified deployment
+- pluggable storage backend
+- webhook notifications
+
+For information on upcoming functionality, please see [ROADMAP.md](ROADMAP.md).
+
+### Who needs to deploy a registry?
+
+By default, Docker users pull images from Docker's public registry instance.
+[Installing Docker](https://docs.docker.com/engine/installation/) gives users this
+ability. Users can also push images to a repository on Docker's public registry,
+if they have a [Docker Hub](https://hub.docker.com/) account.
+
+For some users and even companies, this default behavior is sufficient. For
+others, it is not.
+
+For example, users with their own software products may want to maintain a
+registry for private, company images. Also, you may wish to deploy your own
+image repository for images used to test or in continuous integration. For these
+use cases and others, [deploying your own registry instance](https://github.com/docker/docker.github.io/blob/master/registry/deploying.md)
+may be the better choice.
+
+### Migration to Registry 2.0
+
+For those who have previously deployed their own registry based on the Registry
+1.0 implementation and wish to deploy a Registry 2.0 while retaining images,
+data migration is required. A tool to assist with migration efforts has been
+created. For more information see [docker/migrator]
+(https://github.com/docker/migrator).
+
+## Contribute
+
+Please see [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute
+issues, fixes, and patches to this project. If you are contributing code, see
+the instructions for [building a development environment](BUILDING.md).
+
+## Support
+
+If any issues are encountered while using the _Distribution_ project, several
+avenues are available for support:
+
+<table>
+<tr>
+	<th align="left">
+	IRC
+	</th>
+	<td>
+	#docker-distribution on FreeNode
+	</td>
+</tr>
+<tr>
+	<th align="left">
+	Issue Tracker
+	</th>
+	<td>
+	github.com/docker/distribution/issues
+	</td>
+</tr>
+<tr>
+	<th align="left">
+	Google Groups
+	</th>
+	<td>
+	https://groups.google.com/a/dockerproject.org/forum/#!forum/distribution
+	</td>
+</tr>
+<tr>
+	<th align="left">
+	Mailing List
+	</th>
+	<td>
+	docker@dockerproject.org
+	</td>
+</tr>
+</table>
+
+
+## License
+
+This project is distributed under [Apache License, Version 2.0](LICENSE).
diff --git a/vendor/github.com/docker/distribution/RELEASE-CHECKLIST.md b/vendor/github.com/docker/distribution/RELEASE-CHECKLIST.md
new file mode 100644
index 0000000..49235ce
--- /dev/null
+++ b/vendor/github.com/docker/distribution/RELEASE-CHECKLIST.md
@@ -0,0 +1,36 @@
+## Registry Release Checklist
+
+10. Compile release notes detailing features and since the last release.  Update the `CHANGELOG.md` file.
+
+20. Update the version file: `https://github.com/docker/distribution/blob/master/version/version.go`
+
+30. Update the `MAINTAINERS` (if necessary), `AUTHORS` and `.mailmap` files.
+
+    ```
+make AUTHORS
+```
+
+40. Create a signed tag.
+
+   Distribution uses semantic versioning.  Tags are of the format `vx.y.z[-rcn]`
+You will need PGP installed and a PGP key which has been added to your Github account.  The comment for the tag should include the release notes.
+
+50. Push the signed tag
+
+60. Create a new [release](https://github.com/docker/distribution/releases).  In the case of a release candidate, tick the `pre-release` checkbox. 
+
+70. Update the registry binary in [distribution library image repo](https://github.com/docker/distribution-library-image) by running the update script and  opening a pull request.
+
+80. Update the official image.  Add the new version in the [official images repo](https://github.com/docker-library/official-images) by appending a new version to the `registry/registry` file with the git hash pointed to by the signed tag.  Update the major version to point to the latest version and the minor version to point to new patch release if necessary.
+e.g. to release `2.3.1`
+
+   `2.3.1 (new)`
+
+   `2.3.0 -> 2.3.0` can be removed
+
+   `2 -> 2.3.1`
+
+   `2.3 -> 2.3.1`
+
+90. Build a new distribution/registry image on [Docker hub](https://hub.docker.com/u/distribution/dashboard) by adding a new automated build with the new tag and re-building the images.
+
diff --git a/vendor/github.com/docker/distribution/ROADMAP.md b/vendor/github.com/docker/distribution/ROADMAP.md
new file mode 100644
index 0000000..701127a
--- /dev/null
+++ b/vendor/github.com/docker/distribution/ROADMAP.md
@@ -0,0 +1,267 @@
+# Roadmap
+
+The Distribution Project consists of several components, some of which are
+still being defined. This document defines the high-level goals of the
+project, identifies the current components, and defines the release-
+relationship to the Docker Platform.
+
+* [Distribution Goals](#distribution-goals)
+* [Distribution Components](#distribution-components)
+* [Project Planning](#project-planning): release-relationship to the Docker Platform.
+
+This road map is a living document, providing an overview of the goals and
+considerations made in respect of the future of the project.
+
+## Distribution Goals
+
+- Replace the existing [docker registry](github.com/docker/docker-registry)
+  implementation as the primary implementation.
+- Replace the existing push and pull code in the docker engine with the
+  distribution package.
+- Define a strong data model for distributing docker images
+- Provide a flexible distribution tool kit for use in the docker platform
+- Unlock new distribution models
+
+## Distribution Components
+
+Components of the Distribution Project are managed via github [milestones](https://github.com/docker/distribution/milestones). Upcoming
+features and bugfixes for a component will be added to the relevant milestone. If a feature or
+bugfix is not part of a milestone, it is currently unscheduled for
+implementation. 
+
+* [Registry](#registry)
+* [Distribution Package](#distribution-package)
+
+***
+
+### Registry
+
+The new Docker registry is the main portion of the distribution repository.
+Registry 2.0 is the first release of the next-generation registry. This was
+primarily focused on implementing the [new registry
+API](https://github.com/docker/distribution/blob/master/docs/spec/api.md),
+with a focus on security and performance. 
+
+Following from the Distribution project goals above, we have a set of goals
+for registry v2 that we would like to follow in the design. New features
+should be compared against these goals.
+
+#### Data Storage and Distribution First
+
+The registry's first goal is to provide a reliable, consistent storage
+location for Docker images. The registry should only provide the minimal
+amount of indexing required to fetch image data and no more.
+
+This means we should be selective in new features and API additions, including
+those that may require expensive, ever growing indexes. Requests should be
+servable in "constant time".
+
+#### Content Addressability
+
+All data objects used in the registry API should be content addressable.
+Content identifiers should be secure and verifiable. This provides a secure,
+reliable base from which to build more advanced content distribution systems.
+
+#### Content Agnostic
+
+In the past, changes to the image format would require large changes in Docker
+and the Registry. By decoupling the distribution and image format, we can
+allow the formats to progress without having to coordinate between the two.
+This means that we should be focused on decoupling Docker from the registry
+just as much as decoupling the registry from Docker. Such an approach will
+allow us to unlock new distribution models that haven't been possible before.
+
+We can take this further by saying that the new registry should be content
+agnostic. The registry provides a model of names, tags, manifests and content
+addresses and that model can be used to work with content.
+
+#### Simplicity
+
+The new registry should be closer to a microservice component than its
+predecessor. This means it should have a narrower API and a low number of
+service dependencies. It should be easy to deploy.
+
+This means that other solutions should be explored before changing the API or
+adding extra dependencies. If functionality is required, can it be added as an
+extension or companion service.
+
+#### Extensibility
+
+The registry should provide extension points to add functionality. By keeping
+the scope narrow, but providing the ability to add functionality.
+
+Features like search, indexing, synchronization and registry explorers fall
+into this category. No such feature should be added unless we've found it
+impossible to do through an extension.
+
+#### Active Feature Discussions
+
+The following are feature discussions that are currently active.
+
+If you don't see your favorite, unimplemented feature, feel free to contact us
+via IRC or the mailing list and we can talk about adding it. The goal here is
+to make sure that new features go through a rigid design process before
+landing in the registry.
+
+##### Proxying to other Registries
+
+A _pull-through caching_ mode exists for the registry, but is restricted from 
+within the docker client to only mirror the official Docker Hub.  This functionality
+can be expanded when image provenance has been specified and implemented in the 
+distribution project.
+
+##### Metadata storage
+
+Metadata for the registry is currently stored with the manifest and layer data on
+the storage backend.  While this is a big win for simplicity and reliably maintaining
+state, it comes with the cost of consistency and high latency.  The mutable registry
+metadata operations should be abstracted behind an API which will allow ACID compliant
+storage systems to handle metadata.
+
+##### Peer to Peer transfer
+
+Discussion has started here: https://docs.google.com/document/d/1rYDpSpJiQWmCQy8Cuiaa3NH-Co33oK_SC9HeXYo87QA/edit
+
+##### Indexing, Search and Discovery
+
+The original registry provided some implementation of search for use with
+private registries. Support has been elided from V2 since we'd like to both
+decouple search functionality from the registry. The makes the registry
+simpler to deploy, especially in use cases where search is not needed, and
+let's us decouple the image format from the registry.
+
+There are explorations into using the catalog API and notification system to
+build external indexes. The current line of thought is that we will define a
+common search API to index and query docker images. Such a system could be run
+as a companion to a registry or set of registries to power discovery.
+
+The main issue with search and discovery is that there are so many ways to
+accomplish it. There are two aspects to this project. The first is deciding on
+how it will be done, including an API definition that can work with changing
+data formats. The second is the process of integrating with `docker search`.
+We expect that someone attempts to address the problem with the existing tools
+and propose it as a standard search API or uses it to inform a standardization
+process. Once this has been explored, we integrate with the docker client.
+
+Please see the following for more detail:
+
+- https://github.com/docker/distribution/issues/206
+
+##### Deletes
+
+> __NOTE:__ Deletes are a much asked for feature. Before requesting this
+feature or participating in discussion, we ask that you read this section in
+full and understand the problems behind deletes.
+
+While, at first glance, implementing deleting seems simple, there are a number
+mitigating factors that make many solutions not ideal or even pathological in
+the context of a registry. The following paragraph discuss the background and
+approaches that could be applied to arrive at a solution.
+
+The goal of deletes in any system is to remove unused or unneeded data. Only
+data requested for deletion should be removed and no other data. Removing
+unintended data is worse than _not_ removing data that was requested for
+removal but ideally, both are supported. Generally, according to this rule, we
+err on holding data longer than needed, ensuring that it is only removed when
+we can be certain that it can be removed. With the current behavior, we opt to
+hold onto the data forever, ensuring that data cannot be incorrectly removed.
+
+To understand the problems with implementing deletes, one must understand the
+data model. All registry data is stored in a filesystem layout, implemented on
+a "storage driver", effectively a _virtual file system_ (VFS). The storage
+system must assume that this VFS layer will be eventually consistent and has
+poor read- after-write consistency, since this is the lower common denominator
+among the storage drivers. This is mitigated by writing values in reverse-
+dependent order, but makes wider transactional operations unsafe.
+
+Layered on the VFS model is a content-addressable _directed, acyclic graph_
+(DAG) made up of blobs. Manifests reference layers. Tags reference manifests.
+Since the same data can be referenced by multiple manifests, we only store
+data once, even if it is in different repositories. Thus, we have a set of
+blobs, referenced by tags and manifests. If we want to delete a blob we need
+to be certain that it is no longer referenced by another manifest or tag. When
+we delete a manifest, we also can try to delete the referenced blobs. Deciding
+whether or not a blob has an active reference is the crux of the problem.
+
+Conceptually, deleting a manifest and its resources is quite simple. Just find
+all the manifests, enumerate the referenced blobs and delete the blobs not in
+that set. An astute observer will recognize this as a garbage collection
+problem. As with garbage collection in programming languages, this is very
+simple when one always has a consistent view. When one adds parallelism and an
+inconsistent view of data, it becomes very challenging.
+
+A simple example can demonstrate this. Let's say we are deleting a manifest
+_A_ in one process. We scan the manifest and decide that all the blobs are
+ready for deletion. Concurrently, we have another process accepting a new
+manifest _B_ referencing one or more blobs from the manifest _A_. Manifest _B_
+is accepted and all the blobs are considered present, so the operation
+proceeds. The original process then deletes the referenced blobs, assuming
+they were unreferenced. The manifest _B_, which we thought had all of its data
+present, can no longer be served by the registry, since the dependent data has
+been deleted.
+
+Deleting data from the registry safely requires some way to coordinate this
+operation. The following approaches are being considered:
+
+- _Reference Counting_ - Maintain a count of references to each blob. This is
+  challenging for a number of reasons: 1. maintaining a consistent consensus
+  of reference counts across a set of Registries and 2. Building the initial
+  list of reference counts for an existing registry. These challenges can be
+  met with a consensus protocol like Paxos or Raft in the first case and a
+  necessary but simple scan in the second..
+- _Lock the World GC_ - Halt all writes to the data store. Walk the data store
+  and find all blob references. Delete all unreferenced blobs. This approach
+  is very simple but requires disabling writes for a period of time while the
+  service reads all data. This is slow and expensive but very accurate and
+  effective.
+- _Generational GC_ - Do something similar to above but instead of blocking
+  writes, writes are sent to another storage backend while reads are broadcast
+  to the new and old backends. GC is then performed on the read-only portion.
+  Because writes land in the new backend, the data in the read-only section
+  can be safely deleted. The main drawbacks of this approach are complexity
+  and coordination.
+- _Centralized Oracle_ - Using a centralized, transactional database, we can
+  know exactly which data is referenced at any given time. This avoids
+  coordination problem by managing this data in a single location. We trade
+  off metadata scalability for simplicity and performance. This is a very good
+  option for most registry deployments. This would create a bottleneck for
+  registry metadata. However, metadata is generally not the main bottleneck
+  when serving images.
+
+Please let us know if other solutions exist that we have yet to enumerate.
+Note that for any approach, implementation is a massive consideration. For
+example, a mark-sweep based solution may seem simple but the amount of work in
+coordination offset the extra work it might take to build a _Centralized
+Oracle_. We'll accept proposals for any solution but please coordinate with us
+before dropping code.
+
+At this time, we have traded off simplicity and ease of deployment for disk
+space. Simplicity and ease of deployment tend to reduce developer involvement,
+which is currently the most expensive resource in software engineering. Taking
+on any solution for deletes will greatly effect these factors, trading off
+very cheap disk space for a complex deployment and operational story.
+
+Please see the following issues for more detail:
+
+- https://github.com/docker/distribution/issues/422
+- https://github.com/docker/distribution/issues/461
+- https://github.com/docker/distribution/issues/462
+
+### Distribution Package 
+
+At its core, the Distribution Project is a set of Go packages that make up
+Distribution Components. At this time, most of these packages make up the
+Registry implementation. 
+
+The package itself is considered unstable. If you're using it, please take care to vendor the dependent version. 
+
+For feature additions, please see the Registry section. In the future, we may break out a
+separate Roadmap for distribution-specific features that apply to more than
+just the registry.
+
+***
+
+### Project Planning
+
+An [Open-Source Planning Process](https://github.com/docker/distribution/wiki/Open-Source-Planning-Process) is used to define the Roadmap. [Project Pages](https://github.com/docker/distribution/wiki) define the goals for each Milestone and identify current progress.
+
diff --git a/vendor/github.com/docker/distribution/blobs.go b/vendor/github.com/docker/distribution/blobs.go
new file mode 100644
index 0000000..1f91ae2
--- /dev/null
+++ b/vendor/github.com/docker/distribution/blobs.go
@@ -0,0 +1,257 @@
+package distribution
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	"github.com/docker/distribution/context"
+	"github.com/docker/distribution/digest"
+	"github.com/docker/distribution/reference"
+)
+
+var (
+	// ErrBlobExists returned when blob already exists
+	ErrBlobExists = errors.New("blob exists")
+
+	// ErrBlobDigestUnsupported when blob digest is an unsupported version.
+	ErrBlobDigestUnsupported = errors.New("unsupported blob digest")
+
+	// ErrBlobUnknown when blob is not found.
+	ErrBlobUnknown = errors.New("unknown blob")
+
+	// ErrBlobUploadUnknown returned when upload is not found.
+	ErrBlobUploadUnknown = errors.New("blob upload unknown")
+
+	// ErrBlobInvalidLength returned when the blob has an expected length on
+	// commit, meaning mismatched with the descriptor or an invalid value.
+	ErrBlobInvalidLength = errors.New("blob invalid length")
+)
+
+// ErrBlobInvalidDigest returned when digest check fails.
+type ErrBlobInvalidDigest struct {
+	Digest digest.Digest
+	Reason error
+}
+
+func (err ErrBlobInvalidDigest) Error() string {
+	return fmt.Sprintf("invalid digest for referenced layer: %v, %v",
+		err.Digest, err.Reason)
+}
+
+// ErrBlobMounted returned when a blob is mounted from another repository
+// instead of initiating an upload session.
+type ErrBlobMounted struct {
+	From       reference.Canonical
+	Descriptor Descriptor
+}
+
+func (err ErrBlobMounted) Error() string {
+	return fmt.Sprintf("blob mounted from: %v to: %v",
+		err.From, err.Descriptor)
+}
+
+// Descriptor describes targeted content. Used in conjunction with a blob
+// store, a descriptor can be used to fetch, store and target any kind of
+// blob. The struct also describes the wire protocol format. Fields should
+// only be added but never changed.
+type Descriptor struct {
+	// MediaType describe the type of the content. All text based formats are
+	// encoded as utf-8.
+	MediaType string `json:"mediaType,omitempty"`
+
+	// Size in bytes of content.
+	Size int64 `json:"size,omitempty"`
+
+	// Digest uniquely identifies the content. A byte stream can be verified
+	// against against this digest.
+	Digest digest.Digest `json:"digest,omitempty"`
+
+	// URLs contains the source URLs of this content.
+	URLs []string `json:"urls,omitempty"`
+
+	// NOTE: Before adding a field here, please ensure that all
+	// other options have been exhausted. Much of the type relationships
+	// depend on the simplicity of this type.
+}
+
+// Descriptor returns the descriptor, to make it satisfy the Describable
+// interface. Note that implementations of Describable are generally objects
+// which can be described, not simply descriptors; this exception is in place
+// to make it more convenient to pass actual descriptors to functions that
+// expect Describable objects.
+func (d Descriptor) Descriptor() Descriptor {
+	return d
+}
+
+// BlobStatter makes blob descriptors available by digest. The service may
+// provide a descriptor of a different digest if the provided digest is not
+// canonical.
+type BlobStatter interface {
+	// Stat provides metadata about a blob identified by the digest. If the
+	// blob is unknown to the describer, ErrBlobUnknown will be returned.
+	Stat(ctx context.Context, dgst digest.Digest) (Descriptor, error)
+}
+
+// BlobDeleter enables deleting blobs from storage.
+type BlobDeleter interface {
+	Delete(ctx context.Context, dgst digest.Digest) error
+}
+
+// BlobEnumerator enables iterating over blobs from storage
+type BlobEnumerator interface {
+	Enumerate(ctx context.Context, ingester func(dgst digest.Digest) error) error
+}
+
+// BlobDescriptorService manages metadata about a blob by digest. Most
+// implementations will not expose such an interface explicitly. Such mappings
+// should be maintained by interacting with the BlobIngester. Hence, this is
+// left off of BlobService and BlobStore.
+type BlobDescriptorService interface {
+	BlobStatter
+
+	// SetDescriptor assigns the descriptor to the digest. The provided digest and
+	// the digest in the descriptor must map to identical content but they may
+	// differ on their algorithm. The descriptor must have the canonical
+	// digest of the content and the digest algorithm must match the
+	// annotators canonical algorithm.
+	//
+	// Such a facility can be used to map blobs between digest domains, with
+	// the restriction that the algorithm of the descriptor must match the
+	// canonical algorithm (ie sha256) of the annotator.
+	SetDescriptor(ctx context.Context, dgst digest.Digest, desc Descriptor) error
+
+	// Clear enables descriptors to be unlinked
+	Clear(ctx context.Context, dgst digest.Digest) error
+}
+
+// BlobDescriptorServiceFactory creates middleware for BlobDescriptorService.
+type BlobDescriptorServiceFactory interface {
+	BlobAccessController(svc BlobDescriptorService) BlobDescriptorService
+}
+
+// ReadSeekCloser is the primary reader type for blob data, combining
+// io.ReadSeeker with io.Closer.
+type ReadSeekCloser interface {
+	io.ReadSeeker
+	io.Closer
+}
+
+// BlobProvider describes operations for getting blob data.
+type BlobProvider interface {
+	// Get returns the entire blob identified by digest along with the descriptor.
+	Get(ctx context.Context, dgst digest.Digest) ([]byte, error)
+
+	// Open provides a ReadSeekCloser to the blob identified by the provided
+	// descriptor. If the blob is not known to the service, an error will be
+	// returned.
+	Open(ctx context.Context, dgst digest.Digest) (ReadSeekCloser, error)
+}
+
+// BlobServer can serve blobs via http.
+type BlobServer interface {
+	// ServeBlob attempts to serve the blob, identifed by dgst, via http. The
+	// service may decide to redirect the client elsewhere or serve the data
+	// directly.
+	//
+	// This handler only issues successful responses, such as 2xx or 3xx,
+	// meaning it serves data or issues a redirect. If the blob is not
+	// available, an error will be returned and the caller may still issue a
+	// response.
+	//
+	// The implementation may serve the same blob from a different digest
+	// domain. The appropriate headers will be set for the blob, unless they
+	// have already been set by the caller.
+	ServeBlob(ctx context.Context, w http.ResponseWriter, r *http.Request, dgst digest.Digest) error
+}
+
+// BlobIngester ingests blob data.
+type BlobIngester interface {
+	// Put inserts the content p into the blob service, returning a descriptor
+	// or an error.
+	Put(ctx context.Context, mediaType string, p []byte) (Descriptor, error)
+
+	// Create allocates a new blob writer to add a blob to this service. The
+	// returned handle can be written to and later resumed using an opaque
+	// identifier. With this approach, one can Close and Resume a BlobWriter
+	// multiple times until the BlobWriter is committed or cancelled.
+	Create(ctx context.Context, options ...BlobCreateOption) (BlobWriter, error)
+
+	// Resume attempts to resume a write to a blob, identified by an id.
+	Resume(ctx context.Context, id string) (BlobWriter, error)
+}
+
+// BlobCreateOption is a general extensible function argument for blob creation
+// methods. A BlobIngester may choose to honor any or none of the given
+// BlobCreateOptions, which can be specific to the implementation of the
+// BlobIngester receiving them.
+// TODO (brianbland): unify this with ManifestServiceOption in the future
+type BlobCreateOption interface {
+	Apply(interface{}) error
+}
+
+// CreateOptions is a collection of blob creation modifiers relevant to general
+// blob storage intended to be configured by the BlobCreateOption.Apply method.
+type CreateOptions struct {
+	Mount struct {
+		ShouldMount bool
+		From        reference.Canonical
+		// Stat allows to pass precalculated descriptor to link and return.
+		// Blob access check will be skipped if set.
+		Stat *Descriptor
+	}
+}
+
+// BlobWriter provides a handle for inserting data into a blob store.
+// Instances should be obtained from BlobWriteService.Writer and
+// BlobWriteService.Resume. If supported by the store, a writer can be
+// recovered with the id.
+type BlobWriter interface {
+	io.WriteCloser
+	io.ReaderFrom
+
+	// Size returns the number of bytes written to this blob.
+	Size() int64
+
+	// ID returns the identifier for this writer. The ID can be used with the
+	// Blob service to later resume the write.
+	ID() string
+
+	// StartedAt returns the time this blob write was started.
+	StartedAt() time.Time
+
+	// Commit completes the blob writer process. The content is verified
+	// against the provided provisional descriptor, which may result in an
+	// error. Depending on the implementation, written data may be validated
+	// against the provisional descriptor fields. If MediaType is not present,
+	// the implementation may reject the commit or assign "application/octet-
+	// stream" to the blob. The returned descriptor may have a different
+	// digest depending on the blob store, referred to as the canonical
+	// descriptor.
+	Commit(ctx context.Context, provisional Descriptor) (canonical Descriptor, err error)
+
+	// Cancel ends the blob write without storing any data and frees any
+	// associated resources. Any data written thus far will be lost. Cancel
+	// implementations should allow multiple calls even after a commit that
+	// result in a no-op. This allows use of Cancel in a defer statement,
+	// increasing the assurance that it is correctly called.
+	Cancel(ctx context.Context) error
+}
+
+// BlobService combines the operations to access, read and write blobs. This
+// can be used to describe remote blob services.
+type BlobService interface {
+	BlobStatter
+	BlobProvider
+	BlobIngester
+}
+
+// BlobStore represent the entire suite of blob related operations. Such an
+// implementation can access, read, write, delete and serve blobs.
+type BlobStore interface {
+	BlobService
+	BlobServer
+	BlobDeleter
+}
diff --git a/vendor/github.com/docker/distribution/circle.yml b/vendor/github.com/docker/distribution/circle.yml
new file mode 100644
index 0000000..61f8be0
--- /dev/null
+++ b/vendor/github.com/docker/distribution/circle.yml
@@ -0,0 +1,93 @@
+# Pony-up!
+machine:
+  pre:
+  # Install gvm
+    - bash < <(curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/1.0.22/binscripts/gvm-installer)
+  # Install codecov for coverage
+    - pip install --user codecov
+
+  post:
+  # go
+    - gvm install go1.7 --prefer-binary --name=stable
+
+  environment:
+  # Convenient shortcuts to "common" locations
+    CHECKOUT: /home/ubuntu/$CIRCLE_PROJECT_REPONAME
+    BASE_DIR: src/github.com/$CIRCLE_PROJECT_USERNAME/$CIRCLE_PROJECT_REPONAME
+  # Trick circle brainflat "no absolute path" behavior
+    BASE_STABLE: ../../../$HOME/.gvm/pkgsets/stable/global/$BASE_DIR
+    DOCKER_BUILDTAGS: "include_oss include_gcs"
+  # Workaround Circle parsing dumb bugs and/or YAML wonkyness
+    CIRCLE_PAIN: "mode: set"
+
+  hosts:
+  # Not used yet
+    fancy: 127.0.0.1
+
+dependencies:
+  pre:
+  # Copy the code to the gopath of all go versions
+    - >
+      gvm use stable &&
+      mkdir -p "$(dirname $BASE_STABLE)" &&
+      cp -R "$CHECKOUT" "$BASE_STABLE"
+
+  override:
+  # Install dependencies for every copied clone/go version
+    - gvm use stable && go get github.com/tools/godep:
+        pwd: $BASE_STABLE
+
+  post:
+  # For the stable go version, additionally install linting tools
+    - >
+      gvm use stable &&
+      go get github.com/axw/gocov/gocov github.com/golang/lint/golint
+
+test:
+  pre:
+  # Output the go versions we are going to test
+    # - gvm use old && go version
+    - gvm use stable && go version
+
+  # todo(richard): replace with a more robust vendoring solution. Removed due to a fundamental disagreement in godep philosophies.
+  # Ensure validation of dependencies
+  #    - gvm use stable && if test -n "`git diff --stat=1000 master | grep -Ei \"vendor|godeps\"`"; then make dep-validate; fi:
+  #      pwd: $BASE_STABLE
+
+  # First thing: build everything. This will catch compile errors, and it's
+  # also necessary for go vet to work properly (see #807).
+    - gvm use stable && godep go install $(go list ./... | grep -v "/vendor/"):
+        pwd: $BASE_STABLE
+
+  # FMT
+    - gvm use stable && make fmt:
+        pwd: $BASE_STABLE
+
+   # VET
+    - gvm use stable && make vet:
+        pwd: $BASE_STABLE
+
+  # LINT
+    - gvm use stable && make lint:
+        pwd: $BASE_STABLE
+
+  override:
+  # Test stable, and report
+     - gvm use stable; export ROOT_PACKAGE=$(go list .); go list -tags "$DOCKER_BUILDTAGS" ./... | grep -v "/vendor/" | xargs -L 1 -I{} bash -c 'export PACKAGE={}; godep go test -tags "$DOCKER_BUILDTAGS" -test.short -coverprofile=$GOPATH/src/$PACKAGE/coverage.out -coverpkg=$(./coverpkg.sh $PACKAGE $ROOT_PACKAGE) $PACKAGE':
+         timeout: 1000
+         pwd: $BASE_STABLE
+
+  # Test stable with race
+     - gvm use stable; export ROOT_PACKAGE=$(go list .); go list -tags "$DOCKER_BUILDTAGS" ./... | grep -v "/vendor/" | grep -v "registry/handlers" | grep -v "registry/storage/driver" | xargs -L 1 -I{} bash -c 'export PACKAGE={}; godep go test -race -tags "$DOCKER_BUILDTAGS" -test.short $PACKAGE':
+         timeout: 1000
+         pwd: $BASE_STABLE
+  post:
+  # Report to codecov
+    - bash <(curl -s https://codecov.io/bash):
+        pwd: $BASE_STABLE
+
+  ## Notes
+  # Do we want these as well?
+  # - go get code.google.com/p/go.tools/cmd/goimports
+  # - test -z "$(goimports -l -w ./... | tee /dev/stderr)"
+  # http://labix.org/gocheck
diff --git a/vendor/github.com/docker/distribution/coverpkg.sh b/vendor/github.com/docker/distribution/coverpkg.sh
new file mode 100755
index 0000000..25d419a
--- /dev/null
+++ b/vendor/github.com/docker/distribution/coverpkg.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# Given a subpackage and the containing package, figures out which packages
+# need to be passed to `go test -coverpkg`:  this includes all of the
+# subpackage's dependencies within the containing package, as well as the
+# subpackage itself.
+DEPENDENCIES="$(go list -f $'{{range $f := .Deps}}{{$f}}\n{{end}}' ${1} | grep ${2} | grep -v github.com/docker/distribution/vendor)"
+echo "${1} ${DEPENDENCIES}" | xargs echo -n | tr ' ' ','
diff --git a/vendor/github.com/docker/distribution/digest/digest.go b/vendor/github.com/docker/distribution/digest/digest.go
new file mode 100644
index 0000000..31d821b
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/digest.go
@@ -0,0 +1,139 @@
+package digest
+
+import (
+	"fmt"
+	"hash"
+	"io"
+	"regexp"
+	"strings"
+)
+
+const (
+	// DigestSha256EmptyTar is the canonical sha256 digest of empty data
+	DigestSha256EmptyTar = "sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+)
+
+// Digest allows simple protection of hex formatted digest strings, prefixed
+// by their algorithm. Strings of type Digest have some guarantee of being in
+// the correct format and it provides quick access to the components of a
+// digest string.
+//
+// The following is an example of the contents of Digest types:
+//
+// 	sha256:7173b809ca12ec5dee4506cd86be934c4596dd234ee82c0662eac04a8c2c71dc
+//
+// This allows to abstract the digest behind this type and work only in those
+// terms.
+type Digest string
+
+// NewDigest returns a Digest from alg and a hash.Hash object.
+func NewDigest(alg Algorithm, h hash.Hash) Digest {
+	return NewDigestFromBytes(alg, h.Sum(nil))
+}
+
+// NewDigestFromBytes returns a new digest from the byte contents of p.
+// Typically, this can come from hash.Hash.Sum(...) or xxx.SumXXX(...)
+// functions. This is also useful for rebuilding digests from binary
+// serializations.
+func NewDigestFromBytes(alg Algorithm, p []byte) Digest {
+	return Digest(fmt.Sprintf("%s:%x", alg, p))
+}
+
+// NewDigestFromHex returns a Digest from alg and a the hex encoded digest.
+func NewDigestFromHex(alg, hex string) Digest {
+	return Digest(fmt.Sprintf("%s:%s", alg, hex))
+}
+
+// DigestRegexp matches valid digest types.
+var DigestRegexp = regexp.MustCompile(`[a-zA-Z0-9-_+.]+:[a-fA-F0-9]+`)
+
+// DigestRegexpAnchored matches valid digest types, anchored to the start and end of the match.
+var DigestRegexpAnchored = regexp.MustCompile(`^` + DigestRegexp.String() + `$`)
+
+var (
+	// ErrDigestInvalidFormat returned when digest format invalid.
+	ErrDigestInvalidFormat = fmt.Errorf("invalid checksum digest format")
+
+	// ErrDigestInvalidLength returned when digest has invalid length.
+	ErrDigestInvalidLength = fmt.Errorf("invalid checksum digest length")
+
+	// ErrDigestUnsupported returned when the digest algorithm is unsupported.
+	ErrDigestUnsupported = fmt.Errorf("unsupported digest algorithm")
+)
+
+// ParseDigest parses s and returns the validated digest object. An error will
+// be returned if the format is invalid.
+func ParseDigest(s string) (Digest, error) {
+	d := Digest(s)
+
+	return d, d.Validate()
+}
+
+// FromReader returns the most valid digest for the underlying content using
+// the canonical digest algorithm.
+func FromReader(rd io.Reader) (Digest, error) {
+	return Canonical.FromReader(rd)
+}
+
+// FromBytes digests the input and returns a Digest.
+func FromBytes(p []byte) Digest {
+	return Canonical.FromBytes(p)
+}
+
+// Validate checks that the contents of d is a valid digest, returning an
+// error if not.
+func (d Digest) Validate() error {
+	s := string(d)
+
+	if !DigestRegexpAnchored.MatchString(s) {
+		return ErrDigestInvalidFormat
+	}
+
+	i := strings.Index(s, ":")
+	if i < 0 {
+		return ErrDigestInvalidFormat
+	}
+
+	// case: "sha256:" with no hex.
+	if i+1 == len(s) {
+		return ErrDigestInvalidFormat
+	}
+
+	switch algorithm := Algorithm(s[:i]); algorithm {
+	case SHA256, SHA384, SHA512:
+		if algorithm.Size()*2 != len(s[i+1:]) {
+			return ErrDigestInvalidLength
+		}
+		break
+	default:
+		return ErrDigestUnsupported
+	}
+
+	return nil
+}
+
+// Algorithm returns the algorithm portion of the digest. This will panic if
+// the underlying digest is not in a valid format.
+func (d Digest) Algorithm() Algorithm {
+	return Algorithm(d[:d.sepIndex()])
+}
+
+// Hex returns the hex digest portion of the digest. This will panic if the
+// underlying digest is not in a valid format.
+func (d Digest) Hex() string {
+	return string(d[d.sepIndex()+1:])
+}
+
+func (d Digest) String() string {
+	return string(d)
+}
+
+func (d Digest) sepIndex() int {
+	i := strings.Index(string(d), ":")
+
+	if i < 0 {
+		panic("could not find ':' in digest: " + d)
+	}
+
+	return i
+}
diff --git a/vendor/github.com/docker/distribution/digest/digest_test.go b/vendor/github.com/docker/distribution/digest/digest_test.go
new file mode 100644
index 0000000..afb4ebf
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/digest_test.go
@@ -0,0 +1,82 @@
+package digest
+
+import (
+	"testing"
+)
+
+func TestParseDigest(t *testing.T) {
+	for _, testcase := range []struct {
+		input     string
+		err       error
+		algorithm Algorithm
+		hex       string
+	}{
+		{
+			input:     "sha256:e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
+			algorithm: "sha256",
+			hex:       "e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
+		},
+		{
+			input:     "sha384:d3fc7881460b7e22e3d172954463dddd7866d17597e7248453c48b3e9d26d9596bf9c4a9cf8072c9d5bad76e19af801d",
+			algorithm: "sha384",
+			hex:       "d3fc7881460b7e22e3d172954463dddd7866d17597e7248453c48b3e9d26d9596bf9c4a9cf8072c9d5bad76e19af801d",
+		},
+		{
+			// empty hex
+			input: "sha256:",
+			err:   ErrDigestInvalidFormat,
+		},
+		{
+			// just hex
+			input: "d41d8cd98f00b204e9800998ecf8427e",
+			err:   ErrDigestInvalidFormat,
+		},
+		{
+			// not hex
+			input: "sha256:d41d8cd98f00b204e9800m98ecf8427e",
+			err:   ErrDigestInvalidFormat,
+		},
+		{
+			// too short
+			input: "sha256:abcdef0123456789",
+			err:   ErrDigestInvalidLength,
+		},
+		{
+			// too short (from different algorithm)
+			input: "sha512:abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789",
+			err:   ErrDigestInvalidLength,
+		},
+		{
+			input: "foo:d41d8cd98f00b204e9800998ecf8427e",
+			err:   ErrDigestUnsupported,
+		},
+	} {
+		digest, err := ParseDigest(testcase.input)
+		if err != testcase.err {
+			t.Fatalf("error differed from expected while parsing %q: %v != %v", testcase.input, err, testcase.err)
+		}
+
+		if testcase.err != nil {
+			continue
+		}
+
+		if digest.Algorithm() != testcase.algorithm {
+			t.Fatalf("incorrect algorithm for parsed digest: %q != %q", digest.Algorithm(), testcase.algorithm)
+		}
+
+		if digest.Hex() != testcase.hex {
+			t.Fatalf("incorrect hex for parsed digest: %q != %q", digest.Hex(), testcase.hex)
+		}
+
+		// Parse string return value and check equality
+		newParsed, err := ParseDigest(digest.String())
+
+		if err != nil {
+			t.Fatalf("unexpected error parsing input %q: %v", testcase.input, err)
+		}
+
+		if newParsed != digest {
+			t.Fatalf("expected equal: %q != %q", newParsed, digest)
+		}
+	}
+}
diff --git a/vendor/github.com/docker/distribution/digest/digester.go b/vendor/github.com/docker/distribution/digest/digester.go
new file mode 100644
index 0000000..f3105a4
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/digester.go
@@ -0,0 +1,155 @@
+package digest
+
+import (
+	"crypto"
+	"fmt"
+	"hash"
+	"io"
+)
+
+// Algorithm identifies and implementation of a digester by an identifier.
+// Note the that this defines both the hash algorithm used and the string
+// encoding.
+type Algorithm string
+
+// supported digest types
+const (
+	SHA256 Algorithm = "sha256" // sha256 with hex encoding
+	SHA384 Algorithm = "sha384" // sha384 with hex encoding
+	SHA512 Algorithm = "sha512" // sha512 with hex encoding
+
+	// Canonical is the primary digest algorithm used with the distribution
+	// project. Other digests may be used but this one is the primary storage
+	// digest.
+	Canonical = SHA256
+)
+
+var (
+	// TODO(stevvooe): Follow the pattern of the standard crypto package for
+	// registration of digests. Effectively, we are a registerable set and
+	// common symbol access.
+
+	// algorithms maps values to hash.Hash implementations. Other algorithms
+	// may be available but they cannot be calculated by the digest package.
+	algorithms = map[Algorithm]crypto.Hash{
+		SHA256: crypto.SHA256,
+		SHA384: crypto.SHA384,
+		SHA512: crypto.SHA512,
+	}
+)
+
+// Available returns true if the digest type is available for use. If this
+// returns false, New and Hash will return nil.
+func (a Algorithm) Available() bool {
+	h, ok := algorithms[a]
+	if !ok {
+		return false
+	}
+
+	// check availability of the hash, as well
+	return h.Available()
+}
+
+func (a Algorithm) String() string {
+	return string(a)
+}
+
+// Size returns number of bytes returned by the hash.
+func (a Algorithm) Size() int {
+	h, ok := algorithms[a]
+	if !ok {
+		return 0
+	}
+	return h.Size()
+}
+
+// Set implemented to allow use of Algorithm as a command line flag.
+func (a *Algorithm) Set(value string) error {
+	if value == "" {
+		*a = Canonical
+	} else {
+		// just do a type conversion, support is queried with Available.
+		*a = Algorithm(value)
+	}
+
+	return nil
+}
+
+// New returns a new digester for the specified algorithm. If the algorithm
+// does not have a digester implementation, nil will be returned. This can be
+// checked by calling Available before calling New.
+func (a Algorithm) New() Digester {
+	return &digester{
+		alg:  a,
+		hash: a.Hash(),
+	}
+}
+
+// Hash returns a new hash as used by the algorithm. If not available, the
+// method will panic. Check Algorithm.Available() before calling.
+func (a Algorithm) Hash() hash.Hash {
+	if !a.Available() {
+		// NOTE(stevvooe): A missing hash is usually a programming error that
+		// must be resolved at compile time. We don't import in the digest
+		// package to allow users to choose their hash implementation (such as
+		// when using stevvooe/resumable or a hardware accelerated package).
+		//
+		// Applications that may want to resolve the hash at runtime should
+		// call Algorithm.Available before call Algorithm.Hash().
+		panic(fmt.Sprintf("%v not available (make sure it is imported)", a))
+	}
+
+	return algorithms[a].New()
+}
+
+// FromReader returns the digest of the reader using the algorithm.
+func (a Algorithm) FromReader(rd io.Reader) (Digest, error) {
+	digester := a.New()
+
+	if _, err := io.Copy(digester.Hash(), rd); err != nil {
+		return "", err
+	}
+
+	return digester.Digest(), nil
+}
+
+// FromBytes digests the input and returns a Digest.
+func (a Algorithm) FromBytes(p []byte) Digest {
+	digester := a.New()
+
+	if _, err := digester.Hash().Write(p); err != nil {
+		// Writes to a Hash should never fail. None of the existing
+		// hash implementations in the stdlib or hashes vendored
+		// here can return errors from Write. Having a panic in this
+		// condition instead of having FromBytes return an error value
+		// avoids unnecessary error handling paths in all callers.
+		panic("write to hash function returned error: " + err.Error())
+	}
+
+	return digester.Digest()
+}
+
+// TODO(stevvooe): Allow resolution of verifiers using the digest type and
+// this registration system.
+
+// Digester calculates the digest of written data. Writes should go directly
+// to the return value of Hash, while calling Digest will return the current
+// value of the digest.
+type Digester interface {
+	Hash() hash.Hash // provides direct access to underlying hash instance.
+	Digest() Digest
+}
+
+// digester provides a simple digester definition that embeds a hasher.
+type digester struct {
+	alg  Algorithm
+	hash hash.Hash
+}
+
+func (d *digester) Hash() hash.Hash {
+	return d.hash
+}
+
+func (d *digester) Digest() Digest {
+	return NewDigest(d.alg, d.hash)
+}
diff --git a/vendor/github.com/docker/distribution/digest/digester_resumable_test.go b/vendor/github.com/docker/distribution/digest/digester_resumable_test.go
new file mode 100644
index 0000000..6ba21c8
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/digester_resumable_test.go
@@ -0,0 +1,21 @@
+// +build !noresumabledigest
+
+package digest
+
+import (
+	"testing"
+
+	"github.com/stevvooe/resumable"
+	_ "github.com/stevvooe/resumable/sha256"
+)
+
+// TestResumableDetection just ensures that the resumable capability of a hash
+// is exposed through the digester type, which is just a hash plus a Digest
+// method.
+func TestResumableDetection(t *testing.T) {
+	d := Canonical.New()
+
+	if _, ok := d.Hash().(resumable.Hash); !ok {
+		t.Fatalf("expected digester to implement resumable.Hash: %#v, %v", d, d.Hash())
+	}
+}
diff --git a/vendor/github.com/docker/distribution/digest/doc.go b/vendor/github.com/docker/distribution/digest/doc.go
new file mode 100644
index 0000000..f64b0db
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/doc.go
@@ -0,0 +1,42 @@
+// Package digest provides a generalized type to opaquely represent message
+// digests and their operations within the registry. The Digest type is
+// designed to serve as a flexible identifier in a content-addressable system.
+// More importantly, it provides tools and wrappers to work with
+// hash.Hash-based digests with little effort.
+//
+// Basics
+//
+// The format of a digest is simply a string with two parts, dubbed the
+// "algorithm" and the "digest", separated by a colon:
+//
+// 	<algorithm>:<digest>
+//
+// An example of a sha256 digest representation follows:
+//
+// 	sha256:7173b809ca12ec5dee4506cd86be934c4596dd234ee82c0662eac04a8c2c71dc
+//
+// In this case, the string "sha256" is the algorithm and the hex bytes are
+// the "digest".
+//
+// Because the Digest type is simply a string, once a valid Digest is
+// obtained, comparisons are cheap, quick and simple to express with the
+// standard equality operator.
+//
+// Verification
+//
+// The main benefit of using the Digest type is simple verification against a
+// given digest. The Verifier interface, modeled after the stdlib hash.Hash
+// interface, provides a common write sink for digest verification. After
+// writing is complete, calling the Verifier.Verified method will indicate
+// whether or not the stream of bytes matches the target digest.
+//
+// Missing Features
+//
+// In addition to the above, we intend to add the following features to this
+// package:
+//
+// 1. A Digester type that supports write sink digest calculation.
+//
+// 2. Suspend and resume of ongoing digest calculations to support efficient digest verification in the registry.
+//
+package digest
diff --git a/vendor/github.com/docker/distribution/digest/set.go b/vendor/github.com/docker/distribution/digest/set.go
new file mode 100644
index 0000000..4b9313c
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/set.go
@@ -0,0 +1,245 @@
+package digest
+
+import (
+	"errors"
+	"sort"
+	"strings"
+	"sync"
+)
+
+var (
+	// ErrDigestNotFound is used when a matching digest
+	// could not be found in a set.
+	ErrDigestNotFound = errors.New("digest not found")
+
+	// ErrDigestAmbiguous is used when multiple digests
+	// are found in a set. None of the matching digests
+	// should be considered valid matches.
+	ErrDigestAmbiguous = errors.New("ambiguous digest string")
+)
+
+// Set is used to hold a unique set of digests which
+// may be easily referenced by easily  referenced by a string
+// representation of the digest as well as short representation.
+// The uniqueness of the short representation is based on other
+// digests in the set. If digests are omitted from this set,
+// collisions in a larger set may not be detected, therefore it
+// is important to always do short representation lookups on
+// the complete set of digests. To mitigate collisions, an
+// appropriately long short code should be used.
+type Set struct {
+	mutex   sync.RWMutex
+	entries digestEntries
+}
+
+// NewSet creates an empty set of digests
+// which may have digests added.
+func NewSet() *Set {
+	return &Set{
+		entries: digestEntries{},
+	}
+}
+
+// checkShortMatch checks whether two digests match as either whole
+// values or short values. This function does not test equality,
+// rather whether the second value could match against the first
+// value.
+func checkShortMatch(alg Algorithm, hex, shortAlg, shortHex string) bool {
+	if len(hex) == len(shortHex) {
+		if hex != shortHex {
+			return false
+		}
+		if len(shortAlg) > 0 && string(alg) != shortAlg {
+			return false
+		}
+	} else if !strings.HasPrefix(hex, shortHex) {
+		return false
+	} else if len(shortAlg) > 0 && string(alg) != shortAlg {
+		return false
+	}
+	return true
+}
+
+// Lookup looks for a digest matching the given string representation.
+// If no digests could be found ErrDigestNotFound will be returned
+// with an empty digest value. If multiple matches are found
+// ErrDigestAmbiguous will be returned with an empty digest value.
+func (dst *Set) Lookup(d string) (Digest, error) {
+	dst.mutex.RLock()
+	defer dst.mutex.RUnlock()
+	if len(dst.entries) == 0 {
+		return "", ErrDigestNotFound
+	}
+	var (
+		searchFunc func(int) bool
+		alg        Algorithm
+		hex        string
+	)
+	dgst, err := ParseDigest(d)
+	if err == ErrDigestInvalidFormat {
+		hex = d
+		searchFunc = func(i int) bool {
+			return dst.entries[i].val >= d
+		}
+	} else {
+		hex = dgst.Hex()
+		alg = dgst.Algorithm()
+		searchFunc = func(i int) bool {
+			if dst.entries[i].val == hex {
+				return dst.entries[i].alg >= alg
+			}
+			return dst.entries[i].val >= hex
+		}
+	}
+	idx := sort.Search(len(dst.entries), searchFunc)
+	if idx == len(dst.entries) || !checkShortMatch(dst.entries[idx].alg, dst.entries[idx].val, string(alg), hex) {
+		return "", ErrDigestNotFound
+	}
+	if dst.entries[idx].alg == alg && dst.entries[idx].val == hex {
+		return dst.entries[idx].digest, nil
+	}
+	if idx+1 < len(dst.entries) && checkShortMatch(dst.entries[idx+1].alg, dst.entries[idx+1].val, string(alg), hex) {
+		return "", ErrDigestAmbiguous
+	}
+
+	return dst.entries[idx].digest, nil
+}
+
+// Add adds the given digest to the set. An error will be returned
+// if the given digest is invalid. If the digest already exists in the
+// set, this operation will be a no-op.
+func (dst *Set) Add(d Digest) error {
+	if err := d.Validate(); err != nil {
+		return err
+	}
+	dst.mutex.Lock()
+	defer dst.mutex.Unlock()
+	entry := &digestEntry{alg: d.Algorithm(), val: d.Hex(), digest: d}
+	searchFunc := func(i int) bool {
+		if dst.entries[i].val == entry.val {
+			return dst.entries[i].alg >= entry.alg
+		}
+		return dst.entries[i].val >= entry.val
+	}
+	idx := sort.Search(len(dst.entries), searchFunc)
+	if idx == len(dst.entries) {
+		dst.entries = append(dst.entries, entry)
+		return nil
+	} else if dst.entries[idx].digest == d {
+		return nil
+	}
+
+	entries := append(dst.entries, nil)
+	copy(entries[idx+1:], entries[idx:len(entries)-1])
+	entries[idx] = entry
+	dst.entries = entries
+	return nil
+}
+
+// Remove removes the given digest from the set. An err will be
+// returned if the given digest is invalid. If the digest does
+// not exist in the set, this operation will be a no-op.
+func (dst *Set) Remove(d Digest) error {
+	if err := d.Validate(); err != nil {
+		return err
+	}
+	dst.mutex.Lock()
+	defer dst.mutex.Unlock()
+	entry := &digestEntry{alg: d.Algorithm(), val: d.Hex(), digest: d}
+	searchFunc := func(i int) bool {
+		if dst.entries[i].val == entry.val {
+			return dst.entries[i].alg >= entry.alg
+		}
+		return dst.entries[i].val >= entry.val
+	}
+	idx := sort.Search(len(dst.entries), searchFunc)
+	// Not found if idx is after or value at idx is not digest
+	if idx == len(dst.entries) || dst.entries[idx].digest != d {
+		return nil
+	}
+
+	entries := dst.entries
+	copy(entries[idx:], entries[idx+1:])
+	entries = entries[:len(entries)-1]
+	dst.entries = entries
+
+	return nil
+}
+
+// All returns all the digests in the set
+func (dst *Set) All() []Digest {
+	dst.mutex.RLock()
+	defer dst.mutex.RUnlock()
+	retValues := make([]Digest, len(dst.entries))
+	for i := range dst.entries {
+		retValues[i] = dst.entries[i].digest
+	}
+
+	return retValues
+}
+
+// ShortCodeTable returns a map of Digest to unique short codes. The
+// length represents the minimum value, the maximum length may be the
+// entire value of digest if uniqueness cannot be achieved without the
+// full value. This function will attempt to make short codes as short
+// as possible to be unique.
+func ShortCodeTable(dst *Set, length int) map[Digest]string {
+	dst.mutex.RLock()
+	defer dst.mutex.RUnlock()
+	m := make(map[Digest]string, len(dst.entries))
+	l := length
+	resetIdx := 0
+	for i := 0; i < len(dst.entries); i++ {
+		var short string
+		extended := true
+		for extended {
+			extended = false
+			if len(dst.entries[i].val) <= l {
+				short = dst.entries[i].digest.String()
+			} else {
+				short = dst.entries[i].val[:l]
+				for j := i + 1; j < len(dst.entries); j++ {
+					if checkShortMatch(dst.entries[j].alg, dst.entries[j].val, "", short) {
+						if j > resetIdx {
+							resetIdx = j
+						}
+						extended = true
+					} else {
+						break
+					}
+				}
+				if extended {
+					l++
+				}
+			}
+		}
+		m[dst.entries[i].digest] = short
+		if i >= resetIdx {
+			l = length
+		}
+	}
+	return m
+}
+
+type digestEntry struct {
+	alg    Algorithm
+	val    string
+	digest Digest
+}
+
+type digestEntries []*digestEntry
+
+func (d digestEntries) Len() int {
+	return len(d)
+}
+
+func (d digestEntries) Less(i, j int) bool {
+	if d[i].val != d[j].val {
+		return d[i].val < d[j].val
+	}
+	return d[i].alg < d[j].alg
+}
+
+func (d digestEntries) Swap(i, j int) {
+	d[i], d[j] = d[j], d[i]
+}
diff --git a/vendor/github.com/docker/distribution/digest/set_test.go b/vendor/github.com/docker/distribution/digest/set_test.go
new file mode 100644
index 0000000..e9dab87
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/set_test.go
@@ -0,0 +1,368 @@
+package digest
+
+import (
+	"crypto/sha256"
+	"encoding/binary"
+	"math/rand"
+	"testing"
+)
+
+func assertEqualDigests(t *testing.T, d1, d2 Digest) {
+	if d1 != d2 {
+		t.Fatalf("Digests do not match:\n\tActual: %s\n\tExpected: %s", d1, d2)
+	}
+}
+
+func TestLookup(t *testing.T) {
+	digests := []Digest{
+		"sha256:1234511111111111111111111111111111111111111111111111111111111111",
+		"sha256:1234111111111111111111111111111111111111111111111111111111111111",
+		"sha256:1234611111111111111111111111111111111111111111111111111111111111",
+		"sha256:5432111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6543111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6432111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6542111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6532111111111111111111111111111111111111111111111111111111111111",
+	}
+
+	dset := NewSet()
+	for i := range digests {
+		if err := dset.Add(digests[i]); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	dgst, err := dset.Lookup("54")
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertEqualDigests(t, dgst, digests[3])
+
+	dgst, err = dset.Lookup("1234")
+	if err == nil {
+		t.Fatal("Expected ambiguous error looking up: 1234")
+	}
+	if err != ErrDigestAmbiguous {
+		t.Fatal(err)
+	}
+
+	dgst, err = dset.Lookup("9876")
+	if err == nil {
+		t.Fatal("Expected ambiguous error looking up: 9876")
+	}
+	if err != ErrDigestNotFound {
+		t.Fatal(err)
+	}
+
+	dgst, err = dset.Lookup("sha256:1234")
+	if err == nil {
+		t.Fatal("Expected ambiguous error looking up: sha256:1234")
+	}
+	if err != ErrDigestAmbiguous {
+		t.Fatal(err)
+	}
+
+	dgst, err = dset.Lookup("sha256:12345")
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertEqualDigests(t, dgst, digests[0])
+
+	dgst, err = dset.Lookup("sha256:12346")
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertEqualDigests(t, dgst, digests[2])
+
+	dgst, err = dset.Lookup("12346")
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertEqualDigests(t, dgst, digests[2])
+
+	dgst, err = dset.Lookup("12345")
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertEqualDigests(t, dgst, digests[0])
+}
+
+func TestAddDuplication(t *testing.T) {
+	digests := []Digest{
+		"sha256:1234111111111111111111111111111111111111111111111111111111111111",
+		"sha256:1234511111111111111111111111111111111111111111111111111111111111",
+		"sha256:1234611111111111111111111111111111111111111111111111111111111111",
+		"sha256:5432111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6543111111111111111111111111111111111111111111111111111111111111",
+		"sha512:65431111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",
+		"sha512:65421111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",
+		"sha512:65321111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",
+	}
+
+	dset := NewSet()
+	for i := range digests {
+		if err := dset.Add(digests[i]); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	if len(dset.entries) != 8 {
+		t.Fatal("Invalid dset size")
+	}
+
+	if err := dset.Add(Digest("sha256:1234511111111111111111111111111111111111111111111111111111111111")); err != nil {
+		t.Fatal(err)
+	}
+
+	if len(dset.entries) != 8 {
+		t.Fatal("Duplicate digest insert allowed")
+	}
+
+	if err := dset.Add(Digest("sha384:123451111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111")); err != nil {
+		t.Fatal(err)
+	}
+
+	if len(dset.entries) != 9 {
+		t.Fatal("Insert with different algorithm not allowed")
+	}
+}
+
+func TestRemove(t *testing.T) {
+	digests, err := createDigests(10)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	dset := NewSet()
+	for i := range digests {
+		if err := dset.Add(digests[i]); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	dgst, err := dset.Lookup(digests[0].String())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if dgst != digests[0] {
+		t.Fatalf("Unexpected digest value:\n\tExpected: %s\n\tActual: %s", digests[0], dgst)
+	}
+
+	if err := dset.Remove(digests[0]); err != nil {
+		t.Fatal(err)
+	}
+
+	if _, err := dset.Lookup(digests[0].String()); err != ErrDigestNotFound {
+		t.Fatalf("Expected error %v when looking up removed digest, got %v", ErrDigestNotFound, err)
+	}
+}
+
+func TestAll(t *testing.T) {
+	digests, err := createDigests(100)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	dset := NewSet()
+	for i := range digests {
+		if err := dset.Add(digests[i]); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	all := map[Digest]struct{}{}
+	for _, dgst := range dset.All() {
+		all[dgst] = struct{}{}
+	}
+
+	if len(all) != len(digests) {
+		t.Fatalf("Unexpected number of unique digests found:\n\tExpected: %d\n\tActual: %d", len(digests), len(all))
+	}
+
+	for i, dgst := range digests {
+		if _, ok := all[dgst]; !ok {
+			t.Fatalf("Missing element at position %d: %s", i, dgst)
+		}
+	}
+
+}
+
+func assertEqualShort(t *testing.T, actual, expected string) {
+	if actual != expected {
+		t.Fatalf("Unexpected short value:\n\tExpected: %s\n\tActual: %s", expected, actual)
+	}
+}
+
+func TestShortCodeTable(t *testing.T) {
+	digests := []Digest{
+		"sha256:1234111111111111111111111111111111111111111111111111111111111111",
+		"sha256:1234511111111111111111111111111111111111111111111111111111111111",
+		"sha256:1234611111111111111111111111111111111111111111111111111111111111",
+		"sha256:5432111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6543111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6432111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6542111111111111111111111111111111111111111111111111111111111111",
+		"sha256:6532111111111111111111111111111111111111111111111111111111111111",
+	}
+
+	dset := NewSet()
+	for i := range digests {
+		if err := dset.Add(digests[i]); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	dump := ShortCodeTable(dset, 2)
+
+	if len(dump) < len(digests) {
+		t.Fatalf("Error unexpected size: %d, expecting %d", len(dump), len(digests))
+	}
+	assertEqualShort(t, dump[digests[0]], "12341")
+	assertEqualShort(t, dump[digests[1]], "12345")
+	assertEqualShort(t, dump[digests[2]], "12346")
+	assertEqualShort(t, dump[digests[3]], "54")
+	assertEqualShort(t, dump[digests[4]], "6543")
+	assertEqualShort(t, dump[digests[5]], "64")
+	assertEqualShort(t, dump[digests[6]], "6542")
+	assertEqualShort(t, dump[digests[7]], "653")
+}
+
+func createDigests(count int) ([]Digest, error) {
+	r := rand.New(rand.NewSource(25823))
+	digests := make([]Digest, count)
+	for i := range digests {
+		h := sha256.New()
+		if err := binary.Write(h, binary.BigEndian, r.Int63()); err != nil {
+			return nil, err
+		}
+		digests[i] = NewDigest("sha256", h)
+	}
+	return digests, nil
+}
+
+func benchAddNTable(b *testing.B, n int) {
+	digests, err := createDigests(n)
+	if err != nil {
+		b.Fatal(err)
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		dset := &Set{entries: digestEntries(make([]*digestEntry, 0, n))}
+		for j := range digests {
+			if err = dset.Add(digests[j]); err != nil {
+				b.Fatal(err)
+			}
+		}
+	}
+}
+
+func benchLookupNTable(b *testing.B, n int, shortLen int) {
+	digests, err := createDigests(n)
+	if err != nil {
+		b.Fatal(err)
+	}
+	dset := &Set{entries: digestEntries(make([]*digestEntry, 0, n))}
+	for i := range digests {
+		if err := dset.Add(digests[i]); err != nil {
+			b.Fatal(err)
+		}
+	}
+	shorts := make([]string, 0, n)
+	for _, short := range ShortCodeTable(dset, shortLen) {
+		shorts = append(shorts, short)
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		if _, err = dset.Lookup(shorts[i%n]); err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
+func benchRemoveNTable(b *testing.B, n int) {
+	digests, err := createDigests(n)
+	if err != nil {
+		b.Fatal(err)
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		dset := &Set{entries: digestEntries(make([]*digestEntry, 0, n))}
+		b.StopTimer()
+		for j := range digests {
+			if err = dset.Add(digests[j]); err != nil {
+				b.Fatal(err)
+			}
+		}
+		b.StartTimer()
+		for j := range digests {
+			if err = dset.Remove(digests[j]); err != nil {
+				b.Fatal(err)
+			}
+		}
+	}
+}
+
+func benchShortCodeNTable(b *testing.B, n int, shortLen int) {
+	digests, err := createDigests(n)
+	if err != nil {
+		b.Fatal(err)
+	}
+	dset := &Set{entries: digestEntries(make([]*digestEntry, 0, n))}
+	for i := range digests {
+		if err := dset.Add(digests[i]); err != nil {
+			b.Fatal(err)
+		}
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		ShortCodeTable(dset, shortLen)
+	}
+}
+
+func BenchmarkAdd10(b *testing.B) {
+	benchAddNTable(b, 10)
+}
+
+func BenchmarkAdd100(b *testing.B) {
+	benchAddNTable(b, 100)
+}
+
+func BenchmarkAdd1000(b *testing.B) {
+	benchAddNTable(b, 1000)
+}
+
+func BenchmarkRemove10(b *testing.B) {
+	benchRemoveNTable(b, 10)
+}
+
+func BenchmarkRemove100(b *testing.B) {
+	benchRemoveNTable(b, 100)
+}
+
+func BenchmarkRemove1000(b *testing.B) {
+	benchRemoveNTable(b, 1000)
+}
+
+func BenchmarkLookup10(b *testing.B) {
+	benchLookupNTable(b, 10, 12)
+}
+
+func BenchmarkLookup100(b *testing.B) {
+	benchLookupNTable(b, 100, 12)
+}
+
+func BenchmarkLookup1000(b *testing.B) {
+	benchLookupNTable(b, 1000, 12)
+}
+
+func BenchmarkShortCode10(b *testing.B) {
+	benchShortCodeNTable(b, 10, 12)
+}
+func BenchmarkShortCode100(b *testing.B) {
+	benchShortCodeNTable(b, 100, 12)
+}
+func BenchmarkShortCode1000(b *testing.B) {
+	benchShortCodeNTable(b, 1000, 12)
+}
diff --git a/vendor/github.com/docker/distribution/digest/verifiers.go b/vendor/github.com/docker/distribution/digest/verifiers.go
new file mode 100644
index 0000000..9af3be1
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/verifiers.go
@@ -0,0 +1,44 @@
+package digest
+
+import (
+	"hash"
+	"io"
+)
+
+// Verifier presents a general verification interface to be used with message
+// digests and other byte stream verifications. Users instantiate a Verifier
+// from one of the various methods, write the data under test to it then check
+// the result with the Verified method.
+type Verifier interface {
+	io.Writer
+
+	// Verified will return true if the content written to Verifier matches
+	// the digest.
+	Verified() bool
+}
+
+// NewDigestVerifier returns a verifier that compares the written bytes
+// against a passed in digest.
+func NewDigestVerifier(d Digest) (Verifier, error) {
+	if err := d.Validate(); err != nil {
+		return nil, err
+	}
+
+	return hashVerifier{
+		hash:   d.Algorithm().Hash(),
+		digest: d,
+	}, nil
+}
+
+type hashVerifier struct {
+	digest Digest
+	hash   hash.Hash
+}
+
+func (hv hashVerifier) Write(p []byte) (n int, err error) {
+	return hv.hash.Write(p)
+}
+
+func (hv hashVerifier) Verified() bool {
+	return hv.digest == NewDigest(hv.digest.Algorithm(), hv.hash)
+}
diff --git a/vendor/github.com/docker/distribution/digest/verifiers_test.go b/vendor/github.com/docker/distribution/digest/verifiers_test.go
new file mode 100644
index 0000000..c342d6e
--- /dev/null
+++ b/vendor/github.com/docker/distribution/digest/verifiers_test.go
@@ -0,0 +1,49 @@
+package digest
+
+import (
+	"bytes"
+	"crypto/rand"
+	"io"
+	"testing"
+)
+
+func TestDigestVerifier(t *testing.T) {
+	p := make([]byte, 1<<20)
+	rand.Read(p)
+	digest := FromBytes(p)
+
+	verifier, err := NewDigestVerifier(digest)
+	if err != nil {
+		t.Fatalf("unexpected error getting digest verifier: %s", err)
+	}
+
+	io.Copy(verifier, bytes.NewReader(p))
+
+	if !verifier.Verified() {
+		t.Fatalf("bytes not verified")
+	}
+}
+
+// TestVerifierUnsupportedDigest ensures that unsupported digest validation is
+// flowing through verifier creation.
+func TestVerifierUnsupportedDigest(t *testing.T) {
+	unsupported := Digest("bean:0123456789abcdef")
+
+	_, err := NewDigestVerifier(unsupported)
+	if err == nil {
+		t.Fatalf("expected error when creating verifier")
+	}
+
+	if err != ErrDigestUnsupported {
+		t.Fatalf("incorrect error for unsupported digest: %v", err)
+	}
+}
+
+// TODO(stevvooe): Add benchmarks to measure bytes/second throughput for
+// DigestVerifier.
+//
+// The relevant benchmark for comparison can be run with the following
+// commands:
+//
+// 	go test -bench . crypto/sha1
+//
diff --git a/vendor/github.com/docker/distribution/doc.go b/vendor/github.com/docker/distribution/doc.go
new file mode 100644
index 0000000..bdd8cb7
--- /dev/null
+++ b/vendor/github.com/docker/distribution/doc.go
@@ -0,0 +1,7 @@
+// Package distribution will define the interfaces for the components of
+// docker distribution. The goal is to allow users to reliably package, ship
+// and store content related to docker images.
+//
+// This is currently a work in progress. More details are available in the
+// README.md.
+package distribution
diff --git a/vendor/github.com/docker/distribution/errors.go b/vendor/github.com/docker/distribution/errors.go
new file mode 100644
index 0000000..c20f281
--- /dev/null
+++ b/vendor/github.com/docker/distribution/errors.go
@@ -0,0 +1,115 @@
+package distribution
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/docker/distribution/digest"
+)
+
+// ErrAccessDenied is returned when an access to a requested resource is
+// denied.
+var ErrAccessDenied = errors.New("access denied")
+
+// ErrManifestNotModified is returned when a conditional manifest GetByTag
+// returns nil due to the client indicating it has the latest version
+var ErrManifestNotModified = errors.New("manifest not modified")
+
+// ErrUnsupported is returned when an unimplemented or unsupported action is
+// performed
+var ErrUnsupported = errors.New("operation unsupported")
+
+// ErrTagUnknown is returned if the given tag is not known by the tag service
+type ErrTagUnknown struct {
+	Tag string
+}
+
+func (err ErrTagUnknown) Error() string {
+	return fmt.Sprintf("unknown tag=%s", err.Tag)
+}
+
+// ErrRepositoryUnknown is returned if the named repository is not known by
+// the registry.
+type ErrRepositoryUnknown struct {
+	Name string
+}
+
+func (err ErrRepositoryUnknown) Error() string {
+	return fmt.Sprintf("unknown repository name=%s", err.Name)
+}
+
+// ErrRepositoryNameInvalid should be used to denote an invalid repository
+// name. Reason may set, indicating the cause of invalidity.
+type ErrRepositoryNameInvalid struct {
+	Name   string
+	Reason error
+}
+
+func (err ErrRepositoryNameInvalid) Error() string {
+	return fmt.Sprintf("repository name %q invalid: %v", err.Name, err.Reason)
+}
+
+// ErrManifestUnknown is returned if the manifest is not known by the
+// registry.
+type ErrManifestUnknown struct {
+	Name string
+	Tag  string
+}
+
+func (err ErrManifestUnknown) Error() string {
+	return fmt.Sprintf("unknown manifest name=%s tag=%s", err.Name, err.Tag)
+}
+
+// ErrManifestUnknownRevision is returned when a manifest cannot be found by
+// revision within a repository.
+type ErrManifestUnknownRevision struct {
+	Name     string
+	Revision digest.Digest
+}
+
+func (err ErrManifestUnknownRevision) Error() string {
+	return fmt.Sprintf("unknown manifest name=%s revision=%s", err.Name, err.Revision)
+}
+
+// ErrManifestUnverified is returned when the registry is unable to verify
+// the manifest.
+type ErrManifestUnverified struct{}
+
+func (ErrManifestUnverified) Error() string {
+	return fmt.Sprintf("unverified manifest")
+}
+
+// ErrManifestVerification provides a type to collect errors encountered
+// during manifest verification. Currently, it accepts errors of all types,
+// but it may be narrowed to those involving manifest verification.
+type ErrManifestVerification []error
+
+func (errs ErrManifestVerification) Error() string {
+	var parts []string
+	for _, err := range errs {
+		parts = append(parts, err.Error())
+	}
+
+	return fmt.Sprintf("errors verifying manifest: %v", strings.Join(parts, ","))
+}
+
+// ErrManifestBlobUnknown returned when a referenced blob cannot be found.
+type ErrManifestBlobUnknown struct {
+	Digest digest.Digest
+}
+
+func (err ErrManifestBlobUnknown) Error() string {
+	return fmt.Sprintf("unknown blob %v on manifest", err.Digest)
+}
+
+// ErrManifestNameInvalid should be used to denote an invalid manifest
+// name. Reason may set, indicating the cause of invalidity.
+type ErrManifestNameInvalid struct {
+	Name   string
+	Reason error
+}
+
+func (err ErrManifestNameInvalid) Error() string {
+	return fmt.Sprintf("manifest name %q invalid: %v", err.Name, err.Reason)
+}
diff --git a/vendor/github.com/docker/distribution/manifests.go b/vendor/github.com/docker/distribution/manifests.go
new file mode 100644
index 0000000..c4fb634
--- /dev/null
+++ b/vendor/github.com/docker/distribution/manifests.go
@@ -0,0 +1,125 @@
+package distribution
+
+import (
+	"fmt"
+	"mime"
+
+	"github.com/docker/distribution/context"
+	"github.com/docker/distribution/digest"
+)
+
+// Manifest represents a registry object specifying a set of
+// references and an optional target
+type Manifest interface {
+	// References returns a list of objects which make up this manifest.
+	// A reference is anything which can be represented by a
+	// distribution.Descriptor. These can consist of layers, resources or other
+	// manifests.
+	//
+	// While no particular order is required, implementations should return
+	// them from highest to lowest priority. For example, one might want to
+	// return the base layer before the top layer.
+	References() []Descriptor
+
+	// Payload provides the serialized format of the manifest, in addition to
+	// the mediatype.
+	Payload() (mediatype string, payload []byte, err error)
+}
+
+// ManifestBuilder creates a manifest allowing one to include dependencies.
+// Instances can be obtained from a version-specific manifest package.  Manifest
+// specific data is passed into the function which creates the builder.
+type ManifestBuilder interface {
+	// Build creates the manifest from his builder.
+	Build(ctx context.Context) (Manifest, error)
+
+	// References returns a list of objects which have been added to this
+	// builder. The dependencies are returned in the order they were added,
+	// which should be from base to head.
+	References() []Descriptor
+
+	// AppendReference includes the given object in the manifest after any
+	// existing dependencies. If the add fails, such as when adding an
+	// unsupported dependency, an error may be returned.
+	//
+	// The destination of the reference is dependent on the manifest type and
+	// the dependency type.
+	AppendReference(dependency Describable) error
+}
+
+// ManifestService describes operations on image manifests.
+type ManifestService interface {
+	// Exists returns true if the manifest exists.
+	Exists(ctx context.Context, dgst digest.Digest) (bool, error)
+
+	// Get retrieves the manifest specified by the given digest
+	Get(ctx context.Context, dgst digest.Digest, options ...ManifestServiceOption) (Manifest, error)
+
+	// Put creates or updates the given manifest returning the manifest digest
+	Put(ctx context.Context, manifest Manifest, options ...ManifestServiceOption) (digest.Digest, error)
+
+	// Delete removes the manifest specified by the given digest. Deleting
+	// a manifest that doesn't exist will return ErrManifestNotFound
+	Delete(ctx context.Context, dgst digest.Digest) error
+}
+
+// ManifestEnumerator enables iterating over manifests
+type ManifestEnumerator interface {
+	// Enumerate calls ingester for each manifest.
+	Enumerate(ctx context.Context, ingester func(digest.Digest) error) error
+}
+
+// Describable is an interface for descriptors
+type Describable interface {
+	Descriptor() Descriptor
+}
+
+// ManifestMediaTypes returns the supported media types for manifests.
+func ManifestMediaTypes() (mediaTypes []string) {
+	for t := range mappings {
+		if t != "" {
+			mediaTypes = append(mediaTypes, t)
+		}
+	}
+	return
+}
+
+// UnmarshalFunc implements manifest unmarshalling a given MediaType
+type UnmarshalFunc func([]byte) (Manifest, Descriptor, error)
+
+var mappings = make(map[string]UnmarshalFunc, 0)
+
+// UnmarshalManifest looks up manifest unmarshal functions based on
+// MediaType
+func UnmarshalManifest(ctHeader string, p []byte) (Manifest, Descriptor, error) {
+	// Need to look up by the actual media type, not the raw contents of
+	// the header. Strip semicolons and anything following them.
+	var mediatype string
+	if ctHeader != "" {
+		var err error
+		mediatype, _, err = mime.ParseMediaType(ctHeader)
+		if err != nil {
+			return nil, Descriptor{}, err
+		}
+	}
+
+	unmarshalFunc, ok := mappings[mediatype]
+	if !ok {
+		unmarshalFunc, ok = mappings[""]
+		if !ok {
+			return nil, Descriptor{}, fmt.Errorf("unsupported manifest mediatype and no default available: %s", mediatype)
+		}
+	}
+
+	return unmarshalFunc(p)
+}
+
+// RegisterManifestSchema registers an UnmarshalFunc for a given schema type.  This
+// should be called from specific
+func RegisterManifestSchema(mediatype string, u UnmarshalFunc) error {
+	if _, ok := mappings[mediatype]; ok {
+		return fmt.Errorf("manifest mediatype registration would overwrite existing: %s", mediatype)
+	}
+	mappings[mediatype] = u
+	return nil
+}
diff --git a/vendor/github.com/docker/distribution/reference/reference.go b/vendor/github.com/docker/distribution/reference/reference.go
new file mode 100644
index 0000000..0278662
--- /dev/null
+++ b/vendor/github.com/docker/distribution/reference/reference.go
@@ -0,0 +1,370 @@
+// Package reference provides a general type to represent any way of referencing images within the registry.
+// Its main purpose is to abstract tags and digests (content-addressable hash).
+//
+// Grammar
+//
+// 	reference                       := name [ ":" tag ] [ "@" digest ]
+//	name                            := [hostname '/'] component ['/' component]*
+//	hostname                        := hostcomponent ['.' hostcomponent]* [':' port-number]
+//	hostcomponent                   := /([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])/
+//	port-number                     := /[0-9]+/
+//	component                       := alpha-numeric [separator alpha-numeric]*
+// 	alpha-numeric                   := /[a-z0-9]+/
+//	separator                       := /[_.]|__|[-]*/
+//
+//	tag                             := /[\w][\w.-]{0,127}/
+//
+//	digest                          := digest-algorithm ":" digest-hex
+//	digest-algorithm                := digest-algorithm-component [ digest-algorithm-separator digest-algorithm-component ]
+//	digest-algorithm-separator      := /[+.-_]/
+//	digest-algorithm-component      := /[A-Za-z][A-Za-z0-9]*/
+//	digest-hex                      := /[0-9a-fA-F]{32,}/ ; At least 128 bit digest value
+package reference
+
+import (
+	"errors"
+	"fmt"
+	"path"
+	"strings"
+
+	"github.com/docker/distribution/digest"
+)
+
+const (
+	// NameTotalLengthMax is the maximum total number of characters in a repository name.
+	NameTotalLengthMax = 255
+)
+
+var (
+	// ErrReferenceInvalidFormat represents an error while trying to parse a string as a reference.
+	ErrReferenceInvalidFormat = errors.New("invalid reference format")
+
+	// ErrTagInvalidFormat represents an error while trying to parse a string as a tag.
+	ErrTagInvalidFormat = errors.New("invalid tag format")
+
+	// ErrDigestInvalidFormat represents an error while trying to parse a string as a tag.
+	ErrDigestInvalidFormat = errors.New("invalid digest format")
+
+	// ErrNameContainsUppercase is returned for invalid repository names that contain uppercase characters.
+	ErrNameContainsUppercase = errors.New("repository name must be lowercase")
+
+	// ErrNameEmpty is returned for empty, invalid repository names.
+	ErrNameEmpty = errors.New("repository name must have at least one component")
+
+	// ErrNameTooLong is returned when a repository name is longer than NameTotalLengthMax.
+	ErrNameTooLong = fmt.Errorf("repository name must not be more than %v characters", NameTotalLengthMax)
+)
+
+// Reference is an opaque object reference identifier that may include
+// modifiers such as a hostname, name, tag, and digest.
+type Reference interface {
+	// String returns the full reference
+	String() string
+}
+
+// Field provides a wrapper type for resolving correct reference types when
+// working with encoding.
+type Field struct {
+	reference Reference
+}
+
+// AsField wraps a reference in a Field for encoding.
+func AsField(reference Reference) Field {
+	return Field{reference}
+}
+
+// Reference unwraps the reference type from the field to
+// return the Reference object. This object should be
+// of the appropriate type to further check for different
+// reference types.
+func (f Field) Reference() Reference {
+	return f.reference
+}
+
+// MarshalText serializes the field to byte text which
+// is the string of the reference.
+func (f Field) MarshalText() (p []byte, err error) {
+	return []byte(f.reference.String()), nil
+}
+
+// UnmarshalText parses text bytes by invoking the
+// reference parser to ensure the appropriately
+// typed reference object is wrapped by field.
+func (f *Field) UnmarshalText(p []byte) error {
+	r, err := Parse(string(p))
+	if err != nil {
+		return err
+	}
+
+	f.reference = r
+	return nil
+}
+
+// Named is an object with a full name
+type Named interface {
+	Reference
+	Name() string
+}
+
+// Tagged is an object which has a tag
+type Tagged interface {
+	Reference
+	Tag() string
+}
+
+// NamedTagged is an object including a name and tag.
+type NamedTagged interface {
+	Named
+	Tag() string
+}
+
+// Digested is an object which has a digest
+// in which it can be referenced by
+type Digested interface {
+	Reference
+	Digest() digest.Digest
+}
+
+// Canonical reference is an object with a fully unique
+// name including a name with hostname and digest
+type Canonical interface {
+	Named
+	Digest() digest.Digest
+}
+
+// SplitHostname splits a named reference into a
+// hostname and name string. If no valid hostname is
+// found, the hostname is empty and the full value
+// is returned as name
+func SplitHostname(named Named) (string, string) {
+	name := named.Name()
+	match := anchoredNameRegexp.FindStringSubmatch(name)
+	if len(match) != 3 {
+		return "", name
+	}
+	return match[1], match[2]
+}
+
+// Parse parses s and returns a syntactically valid Reference.
+// If an error was encountered it is returned, along with a nil Reference.
+// NOTE: Parse will not handle short digests.
+func Parse(s string) (Reference, error) {
+	matches := ReferenceRegexp.FindStringSubmatch(s)
+	if matches == nil {
+		if s == "" {
+			return nil, ErrNameEmpty
+		}
+		if ReferenceRegexp.FindStringSubmatch(strings.ToLower(s)) != nil {
+			return nil, ErrNameContainsUppercase
+		}
+		return nil, ErrReferenceInvalidFormat
+	}
+
+	if len(matches[1]) > NameTotalLengthMax {
+		return nil, ErrNameTooLong
+	}
+
+	ref := reference{
+		name: matches[1],
+		tag:  matches[2],
+	}
+	if matches[3] != "" {
+		var err error
+		ref.digest, err = digest.ParseDigest(matches[3])
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	r := getBestReferenceType(ref)
+	if r == nil {
+		return nil, ErrNameEmpty
+	}
+
+	return r, nil
+}
+
+// ParseNamed parses s and returns a syntactically valid reference implementing
+// the Named interface. The reference must have a name, otherwise an error is
+// returned.
+// If an error was encountered it is returned, along with a nil Reference.
+// NOTE: ParseNamed will not handle short digests.
+func ParseNamed(s string) (Named, error) {
+	ref, err := Parse(s)
+	if err != nil {
+		return nil, err
+	}
+	named, isNamed := ref.(Named)
+	if !isNamed {
+		return nil, fmt.Errorf("reference %s has no name", ref.String())
+	}
+	return named, nil
+}
+
+// WithName returns a named object representing the given string. If the input
+// is invalid ErrReferenceInvalidFormat will be returned.
+func WithName(name string) (Named, error) {
+	if len(name) > NameTotalLengthMax {
+		return nil, ErrNameTooLong
+	}
+	if !anchoredNameRegexp.MatchString(name) {
+		return nil, ErrReferenceInvalidFormat
+	}
+	return repository(name), nil
+}
+
+// WithTag combines the name from "name" and the tag from "tag" to form a
+// reference incorporating both the name and the tag.
+func WithTag(name Named, tag string) (NamedTagged, error) {
+	if !anchoredTagRegexp.MatchString(tag) {
+		return nil, ErrTagInvalidFormat
+	}
+	if canonical, ok := name.(Canonical); ok {
+		return reference{
+			name:   name.Name(),
+			tag:    tag,
+			digest: canonical.Digest(),
+		}, nil
+	}
+	return taggedReference{
+		name: name.Name(),
+		tag:  tag,
+	}, nil
+}
+
+// WithDigest combines the name from "name" and the digest from "digest" to form
+// a reference incorporating both the name and the digest.
+func WithDigest(name Named, digest digest.Digest) (Canonical, error) {
+	if !anchoredDigestRegexp.MatchString(digest.String()) {
+		return nil, ErrDigestInvalidFormat
+	}
+	if tagged, ok := name.(Tagged); ok {
+		return reference{
+			name:   name.Name(),
+			tag:    tagged.Tag(),
+			digest: digest,
+		}, nil
+	}
+	return canonicalReference{
+		name:   name.Name(),
+		digest: digest,
+	}, nil
+}
+
+// Match reports whether ref matches the specified pattern.
+// See https://godoc.org/path#Match for supported patterns.
+func Match(pattern string, ref Reference) (bool, error) {
+	matched, err := path.Match(pattern, ref.String())
+	if namedRef, isNamed := ref.(Named); isNamed && !matched {
+		matched, _ = path.Match(pattern, namedRef.Name())
+	}
+	return matched, err
+}
+
+// TrimNamed removes any tag or digest from the named reference.
+func TrimNamed(ref Named) Named {
+	return repository(ref.Name())
+}
+
+func getBestReferenceType(ref reference) Reference {
+	if ref.name == "" {
+		// Allow digest only references
+		if ref.digest != "" {
+			return digestReference(ref.digest)
+		}
+		return nil
+	}
+	if ref.tag == "" {
+		if ref.digest != "" {
+			return canonicalReference{
+				name:   ref.name,
+				digest: ref.digest,
+			}
+		}
+		return repository(ref.name)
+	}
+	if ref.digest == "" {
+		return taggedReference{
+			name: ref.name,
+			tag:  ref.tag,
+		}
+	}
+
+	return ref
+}
+
+type reference struct {
+	name   string
+	tag    string
+	digest digest.Digest
+}
+
+func (r reference) String() string {
+	return r.name + ":" + r.tag + "@" + r.digest.String()
+}
+
+func (r reference) Name() string {
+	return r.name
+}
+
+func (r reference) Tag() string {
+	return r.tag
+}
+
+func (r reference) Digest() digest.Digest {
+	return r.digest
+}
+
+type repository string
+
+func (r repository) String() string {
+	return string(r)
+}
+
+func (r repository) Name() string {
+	return string(r)
+}
+
+type digestReference digest.Digest
+
+func (d digestReference) String() string {
+	return d.String()
+}
+
+func (d digestReference) Digest() digest.Digest {
+	return digest.Digest(d)
+}
+
+type taggedReference struct {
+	name string
+	tag  string
+}
+
+func (t taggedReference) String() string {
+	return t.name + ":" + t.tag
+}
+
+func (t taggedReference) Name() string {
+	return t.name
+}
+
+func (t taggedReference) Tag() string {
+	return t.tag
+}
+
+type canonicalReference struct {
+	name   string
+	digest digest.Digest
+}
+
+func (c canonicalReference) String() string {
+	return c.name + "@" + c.digest.String()
+}
+
+func (c canonicalReference) Name() string {
+	return c.name
+}
+
+func (c canonicalReference) Digest() digest.Digest {
+	return c.digest
+}
diff --git a/vendor/github.com/docker/distribution/reference/reference_test.go b/vendor/github.com/docker/distribution/reference/reference_test.go
new file mode 100644
index 0000000..405c47c
--- /dev/null
+++ b/vendor/github.com/docker/distribution/reference/reference_test.go
@@ -0,0 +1,661 @@
+package reference
+
+import (
+	"encoding/json"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/docker/distribution/digest"
+)
+
+func TestReferenceParse(t *testing.T) {
+	// referenceTestcases is a unified set of testcases for
+	// testing the parsing of references
+	referenceTestcases := []struct {
+		// input is the repository name or name component testcase
+		input string
+		// err is the error expected from Parse, or nil
+		err error
+		// repository is the string representation for the reference
+		repository string
+		// hostname is the hostname expected in the reference
+		hostname string
+		// tag is the tag for the reference
+		tag string
+		// digest is the digest for the reference (enforces digest reference)
+		digest string
+	}{
+		{
+			input:      "test_com",
+			repository: "test_com",
+		},
+		{
+			input:      "test.com:tag",
+			repository: "test.com",
+			tag:        "tag",
+		},
+		{
+			input:      "test.com:5000",
+			repository: "test.com",
+			tag:        "5000",
+		},
+		{
+			input:      "test.com/repo:tag",
+			hostname:   "test.com",
+			repository: "test.com/repo",
+			tag:        "tag",
+		},
+		{
+			input:      "test:5000/repo",
+			hostname:   "test:5000",
+			repository: "test:5000/repo",
+		},
+		{
+			input:      "test:5000/repo:tag",
+			hostname:   "test:5000",
+			repository: "test:5000/repo",
+			tag:        "tag",
+		},
+		{
+			input:      "test:5000/repo@sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+			hostname:   "test:5000",
+			repository: "test:5000/repo",
+			digest:     "sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+		},
+		{
+			input:      "test:5000/repo:tag@sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+			hostname:   "test:5000",
+			repository: "test:5000/repo",
+			tag:        "tag",
+			digest:     "sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+		},
+		{
+			input:      "test:5000/repo",
+			hostname:   "test:5000",
+			repository: "test:5000/repo",
+		},
+		{
+			input: "",
+			err:   ErrNameEmpty,
+		},
+		{
+			input: ":justtag",
+			err:   ErrReferenceInvalidFormat,
+		},
+		{
+			input: "@sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+			err:   ErrReferenceInvalidFormat,
+		},
+		{
+			input: "repo@sha256:ffffffffffffffffffffffffffffffffff",
+			err:   digest.ErrDigestInvalidLength,
+		},
+		{
+			input: "validname@invaliddigest:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+			err:   digest.ErrDigestUnsupported,
+		},
+		{
+			input: "Uppercase:tag",
+			err:   ErrNameContainsUppercase,
+		},
+		// FIXME "Uppercase" is incorrectly handled as a domain-name here, therefore passes.
+		// See https://github.com/docker/distribution/pull/1778, and https://github.com/docker/docker/pull/20175
+		//{
+		//	input: "Uppercase/lowercase:tag",
+		//	err:   ErrNameContainsUppercase,
+		//},
+		{
+			input: "test:5000/Uppercase/lowercase:tag",
+			err:   ErrNameContainsUppercase,
+		},
+		{
+			input:      "lowercase:Uppercase",
+			repository: "lowercase",
+			tag:        "Uppercase",
+		},
+		{
+			input: strings.Repeat("a/", 128) + "a:tag",
+			err:   ErrNameTooLong,
+		},
+		{
+			input:      strings.Repeat("a/", 127) + "a:tag-puts-this-over-max",
+			hostname:   "a",
+			repository: strings.Repeat("a/", 127) + "a",
+			tag:        "tag-puts-this-over-max",
+		},
+		{
+			input: "aa/asdf$$^/aa",
+			err:   ErrReferenceInvalidFormat,
+		},
+		{
+			input:      "sub-dom1.foo.com/bar/baz/quux",
+			hostname:   "sub-dom1.foo.com",
+			repository: "sub-dom1.foo.com/bar/baz/quux",
+		},
+		{
+			input:      "sub-dom1.foo.com/bar/baz/quux:some-long-tag",
+			hostname:   "sub-dom1.foo.com",
+			repository: "sub-dom1.foo.com/bar/baz/quux",
+			tag:        "some-long-tag",
+		},
+		{
+			input:      "b.gcr.io/test.example.com/my-app:test.example.com",
+			hostname:   "b.gcr.io",
+			repository: "b.gcr.io/test.example.com/my-app",
+			tag:        "test.example.com",
+		},
+		{
+			input:      "xn--n3h.com/myimage:xn--n3h.com", // ☃.com in punycode
+			hostname:   "xn--n3h.com",
+			repository: "xn--n3h.com/myimage",
+			tag:        "xn--n3h.com",
+		},
+		{
+			input:      "xn--7o8h.com/myimage:xn--7o8h.com@sha512:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", // 🐳.com in punycode
+			hostname:   "xn--7o8h.com",
+			repository: "xn--7o8h.com/myimage",
+			tag:        "xn--7o8h.com",
+			digest:     "sha512:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+		},
+		{
+			input:      "foo_bar.com:8080",
+			repository: "foo_bar.com",
+			tag:        "8080",
+		},
+		{
+			input:      "foo/foo_bar.com:8080",
+			hostname:   "foo",
+			repository: "foo/foo_bar.com",
+			tag:        "8080",
+		},
+	}
+	for _, testcase := range referenceTestcases {
+		failf := func(format string, v ...interface{}) {
+			t.Logf(strconv.Quote(testcase.input)+": "+format, v...)
+			t.Fail()
+		}
+
+		repo, err := Parse(testcase.input)
+		if testcase.err != nil {
+			if err == nil {
+				failf("missing expected error: %v", testcase.err)
+			} else if testcase.err != err {
+				failf("mismatched error: got %v, expected %v", err, testcase.err)
+			}
+			continue
+		} else if err != nil {
+			failf("unexpected parse error: %v", err)
+			continue
+		}
+		if repo.String() != testcase.input {
+			failf("mismatched repo: got %q, expected %q", repo.String(), testcase.input)
+		}
+
+		if named, ok := repo.(Named); ok {
+			if named.Name() != testcase.repository {
+				failf("unexpected repository: got %q, expected %q", named.Name(), testcase.repository)
+			}
+			hostname, _ := SplitHostname(named)
+			if hostname != testcase.hostname {
+				failf("unexpected hostname: got %q, expected %q", hostname, testcase.hostname)
+			}
+		} else if testcase.repository != "" || testcase.hostname != "" {
+			failf("expected named type, got %T", repo)
+		}
+
+		tagged, ok := repo.(Tagged)
+		if testcase.tag != "" {
+			if ok {
+				if tagged.Tag() != testcase.tag {
+					failf("unexpected tag: got %q, expected %q", tagged.Tag(), testcase.tag)
+				}
+			} else {
+				failf("expected tagged type, got %T", repo)
+			}
+		} else if ok {
+			failf("unexpected tagged type")
+		}
+
+		digested, ok := repo.(Digested)
+		if testcase.digest != "" {
+			if ok {
+				if digested.Digest().String() != testcase.digest {
+					failf("unexpected digest: got %q, expected %q", digested.Digest().String(), testcase.digest)
+				}
+			} else {
+				failf("expected digested type, got %T", repo)
+			}
+		} else if ok {
+			failf("unexpected digested type")
+		}
+
+	}
+}
+
+// TestWithNameFailure tests cases where WithName should fail. Cases where it
+// should succeed are covered by TestSplitHostname, below.
+func TestWithNameFailure(t *testing.T) {
+	testcases := []struct {
+		input string
+		err   error
+	}{
+		{
+			input: "",
+			err:   ErrNameEmpty,
+		},
+		{
+			input: ":justtag",
+			err:   ErrReferenceInvalidFormat,
+		},
+		{
+			input: "@sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+			err:   ErrReferenceInvalidFormat,
+		},
+		{
+			input: "validname@invaliddigest:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+			err:   ErrReferenceInvalidFormat,
+		},
+		{
+			input: strings.Repeat("a/", 128) + "a:tag",
+			err:   ErrNameTooLong,
+		},
+		{
+			input: "aa/asdf$$^/aa",
+			err:   ErrReferenceInvalidFormat,
+		},
+	}
+	for _, testcase := range testcases {
+		failf := func(format string, v ...interface{}) {
+			t.Logf(strconv.Quote(testcase.input)+": "+format, v...)
+			t.Fail()
+		}
+
+		_, err := WithName(testcase.input)
+		if err == nil {
+			failf("no error parsing name. expected: %s", testcase.err)
+		}
+	}
+}
+
+func TestSplitHostname(t *testing.T) {
+	testcases := []struct {
+		input    string
+		hostname string
+		name     string
+	}{
+		{
+			input:    "test.com/foo",
+			hostname: "test.com",
+			name:     "foo",
+		},
+		{
+			input:    "test_com/foo",
+			hostname: "",
+			name:     "test_com/foo",
+		},
+		{
+			input:    "test:8080/foo",
+			hostname: "test:8080",
+			name:     "foo",
+		},
+		{
+			input:    "test.com:8080/foo",
+			hostname: "test.com:8080",
+			name:     "foo",
+		},
+		{
+			input:    "test-com:8080/foo",
+			hostname: "test-com:8080",
+			name:     "foo",
+		},
+		{
+			input:    "xn--n3h.com:18080/foo",
+			hostname: "xn--n3h.com:18080",
+			name:     "foo",
+		},
+	}
+	for _, testcase := range testcases {
+		failf := func(format string, v ...interface{}) {
+			t.Logf(strconv.Quote(testcase.input)+": "+format, v...)
+			t.Fail()
+		}
+
+		named, err := WithName(testcase.input)
+		if err != nil {
+			failf("error parsing name: %s", err)
+		}
+		hostname, name := SplitHostname(named)
+		if hostname != testcase.hostname {
+			failf("unexpected hostname: got %q, expected %q", hostname, testcase.hostname)
+		}
+		if name != testcase.name {
+			failf("unexpected name: got %q, expected %q", name, testcase.name)
+		}
+	}
+}
+
+type serializationType struct {
+	Description string
+	Field       Field
+}
+
+func TestSerialization(t *testing.T) {
+	testcases := []struct {
+		description string
+		input       string
+		name        string
+		tag         string
+		digest      string
+		err         error
+	}{
+		{
+			description: "empty value",
+			err:         ErrNameEmpty,
+		},
+		{
+			description: "just a name",
+			input:       "example.com:8000/named",
+			name:        "example.com:8000/named",
+		},
+		{
+			description: "name with a tag",
+			input:       "example.com:8000/named:tagged",
+			name:        "example.com:8000/named",
+			tag:         "tagged",
+		},
+		{
+			description: "name with digest",
+			input:       "other.com/named@sha256:1234567890098765432112345667890098765432112345667890098765432112",
+			name:        "other.com/named",
+			digest:      "sha256:1234567890098765432112345667890098765432112345667890098765432112",
+		},
+	}
+	for _, testcase := range testcases {
+		failf := func(format string, v ...interface{}) {
+			t.Logf(strconv.Quote(testcase.input)+": "+format, v...)
+			t.Fail()
+		}
+
+		m := map[string]string{
+			"Description": testcase.description,
+			"Field":       testcase.input,
+		}
+		b, err := json.Marshal(m)
+		if err != nil {
+			failf("error marshalling: %v", err)
+		}
+		t := serializationType{}
+
+		if err := json.Unmarshal(b, &t); err != nil {
+			if testcase.err == nil {
+				failf("error unmarshalling: %v", err)
+			}
+			if err != testcase.err {
+				failf("wrong error, expected %v, got %v", testcase.err, err)
+			}
+
+			continue
+		} else if testcase.err != nil {
+			failf("expected error unmarshalling: %v", testcase.err)
+		}
+
+		if t.Description != testcase.description {
+			failf("wrong description, expected %q, got %q", testcase.description, t.Description)
+		}
+
+		ref := t.Field.Reference()
+
+		if named, ok := ref.(Named); ok {
+			if named.Name() != testcase.name {
+				failf("unexpected repository: got %q, expected %q", named.Name(), testcase.name)
+			}
+		} else if testcase.name != "" {
+			failf("expected named type, got %T", ref)
+		}
+
+		tagged, ok := ref.(Tagged)
+		if testcase.tag != "" {
+			if ok {
+				if tagged.Tag() != testcase.tag {
+					failf("unexpected tag: got %q, expected %q", tagged.Tag(), testcase.tag)
+				}
+			} else {
+				failf("expected tagged type, got %T", ref)
+			}
+		} else if ok {
+			failf("unexpected tagged type")
+		}
+
+		digested, ok := ref.(Digested)
+		if testcase.digest != "" {
+			if ok {
+				if digested.Digest().String() != testcase.digest {
+					failf("unexpected digest: got %q, expected %q", digested.Digest().String(), testcase.digest)
+				}
+			} else {
+				failf("expected digested type, got %T", ref)
+			}
+		} else if ok {
+			failf("unexpected digested type")
+		}
+
+		t = serializationType{
+			Description: testcase.description,
+			Field:       AsField(ref),
+		}
+
+		b2, err := json.Marshal(t)
+		if err != nil {
+			failf("error marshing serialization type: %v", err)
+		}
+
+		if string(b) != string(b2) {
+			failf("unexpected serialized value: expected %q, got %q", string(b), string(b2))
+		}
+
+		// Ensure t.Field is not implementing "Reference" directly, getting
+		// around the Reference type system
+		var fieldInterface interface{} = t.Field
+		if _, ok := fieldInterface.(Reference); ok {
+			failf("field should not implement Reference interface")
+		}
+
+	}
+}
+
+func TestWithTag(t *testing.T) {
+	testcases := []struct {
+		name     string
+		digest   digest.Digest
+		tag      string
+		combined string
+	}{
+		{
+			name:     "test.com/foo",
+			tag:      "tag",
+			combined: "test.com/foo:tag",
+		},
+		{
+			name:     "foo",
+			tag:      "tag2",
+			combined: "foo:tag2",
+		},
+		{
+			name:     "test.com:8000/foo",
+			tag:      "tag4",
+			combined: "test.com:8000/foo:tag4",
+		},
+		{
+			name:     "test.com:8000/foo",
+			tag:      "TAG5",
+			combined: "test.com:8000/foo:TAG5",
+		},
+		{
+			name:     "test.com:8000/foo",
+			digest:   "sha256:1234567890098765432112345667890098765",
+			tag:      "TAG5",
+			combined: "test.com:8000/foo:TAG5@sha256:1234567890098765432112345667890098765",
+		},
+	}
+	for _, testcase := range testcases {
+		failf := func(format string, v ...interface{}) {
+			t.Logf(strconv.Quote(testcase.name)+": "+format, v...)
+			t.Fail()
+		}
+
+		named, err := WithName(testcase.name)
+		if err != nil {
+			failf("error parsing name: %s", err)
+		}
+		if testcase.digest != "" {
+			canonical, err := WithDigest(named, testcase.digest)
+			if err != nil {
+				failf("error adding digest")
+			}
+			named = canonical
+		}
+
+		tagged, err := WithTag(named, testcase.tag)
+		if err != nil {
+			failf("WithTag failed: %s", err)
+		}
+		if tagged.String() != testcase.combined {
+			failf("unexpected: got %q, expected %q", tagged.String(), testcase.combined)
+		}
+	}
+}
+
+func TestWithDigest(t *testing.T) {
+	testcases := []struct {
+		name     string
+		digest   digest.Digest
+		tag      string
+		combined string
+	}{
+		{
+			name:     "test.com/foo",
+			digest:   "sha256:1234567890098765432112345667890098765",
+			combined: "test.com/foo@sha256:1234567890098765432112345667890098765",
+		},
+		{
+			name:     "foo",
+			digest:   "sha256:1234567890098765432112345667890098765",
+			combined: "foo@sha256:1234567890098765432112345667890098765",
+		},
+		{
+			name:     "test.com:8000/foo",
+			digest:   "sha256:1234567890098765432112345667890098765",
+			combined: "test.com:8000/foo@sha256:1234567890098765432112345667890098765",
+		},
+		{
+			name:     "test.com:8000/foo",
+			digest:   "sha256:1234567890098765432112345667890098765",
+			tag:      "latest",
+			combined: "test.com:8000/foo:latest@sha256:1234567890098765432112345667890098765",
+		},
+	}
+	for _, testcase := range testcases {
+		failf := func(format string, v ...interface{}) {
+			t.Logf(strconv.Quote(testcase.name)+": "+format, v...)
+			t.Fail()
+		}
+
+		named, err := WithName(testcase.name)
+		if err != nil {
+			failf("error parsing name: %s", err)
+		}
+		if testcase.tag != "" {
+			tagged, err := WithTag(named, testcase.tag)
+			if err != nil {
+				failf("error adding tag")
+			}
+			named = tagged
+		}
+		digested, err := WithDigest(named, testcase.digest)
+		if err != nil {
+			failf("WithDigest failed: %s", err)
+		}
+		if digested.String() != testcase.combined {
+			failf("unexpected: got %q, expected %q", digested.String(), testcase.combined)
+		}
+	}
+}
+
+func TestMatchError(t *testing.T) {
+	named, err := Parse("foo")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = Match("[-x]", named)
+	if err == nil {
+		t.Fatalf("expected an error, got nothing")
+	}
+}
+
+func TestMatch(t *testing.T) {
+	matchCases := []struct {
+		reference string
+		pattern   string
+		expected  bool
+	}{
+		{
+			reference: "foo",
+			pattern:   "foo/**/ba[rz]",
+			expected:  false,
+		},
+		{
+			reference: "foo/any/bat",
+			pattern:   "foo/**/ba[rz]",
+			expected:  false,
+		},
+		{
+			reference: "foo/a/bar",
+			pattern:   "foo/**/ba[rz]",
+			expected:  true,
+		},
+		{
+			reference: "foo/b/baz",
+			pattern:   "foo/**/ba[rz]",
+			expected:  true,
+		},
+		{
+			reference: "foo/c/baz:tag",
+			pattern:   "foo/**/ba[rz]",
+			expected:  true,
+		},
+		{
+			reference: "foo/c/baz:tag",
+			pattern:   "foo/*/baz:tag",
+			expected:  true,
+		},
+		{
+			reference: "foo/c/baz:tag",
+			pattern:   "foo/c/baz:tag",
+			expected:  true,
+		},
+		{
+			reference: "example.com/foo/c/baz:tag",
+			pattern:   "*/foo/c/baz",
+			expected:  true,
+		},
+		{
+			reference: "example.com/foo/c/baz:tag",
+			pattern:   "example.com/foo/c/baz",
+			expected:  true,
+		},
+	}
+	for _, c := range matchCases {
+		named, err := Parse(c.reference)
+		if err != nil {
+			t.Fatal(err)
+		}
+		actual, err := Match(c.pattern, named)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if actual != c.expected {
+			t.Fatalf("expected %s match %s to be %v, was %v", c.reference, c.pattern, c.expected, actual)
+		}
+	}
+}
diff --git a/vendor/github.com/docker/distribution/reference/regexp.go b/vendor/github.com/docker/distribution/reference/regexp.go
new file mode 100644
index 0000000..9a7d366
--- /dev/null
+++ b/vendor/github.com/docker/distribution/reference/regexp.go
@@ -0,0 +1,124 @@
+package reference
+
+import "regexp"
+
+var (
+	// alphaNumericRegexp defines the alpha numeric atom, typically a
+	// component of names. This only allows lower case characters and digits.
+	alphaNumericRegexp = match(`[a-z0-9]+`)
+
+	// separatorRegexp defines the separators allowed to be embedded in name
+	// components. This allow one period, one or two underscore and multiple
+	// dashes.
+	separatorRegexp = match(`(?:[._]|__|[-]*)`)
+
+	// nameComponentRegexp restricts registry path component names to start
+	// with at least one letter or number, with following parts able to be
+	// separated by one period, one or two underscore and multiple dashes.
+	nameComponentRegexp = expression(
+		alphaNumericRegexp,
+		optional(repeated(separatorRegexp, alphaNumericRegexp)))
+
+	// hostnameComponentRegexp restricts the registry hostname component of a
+	// repository name to start with a component as defined by hostnameRegexp
+	// and followed by an optional port.
+	hostnameComponentRegexp = match(`(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])`)
+
+	// hostnameRegexp defines the structure of potential hostname components
+	// that may be part of image names. This is purposely a subset of what is
+	// allowed by DNS to ensure backwards compatibility with Docker image
+	// names.
+	hostnameRegexp = expression(
+		hostnameComponentRegexp,
+		optional(repeated(literal(`.`), hostnameComponentRegexp)),
+		optional(literal(`:`), match(`[0-9]+`)))
+
+	// TagRegexp matches valid tag names. From docker/docker:graph/tags.go.
+	TagRegexp = match(`[\w][\w.-]{0,127}`)
+
+	// anchoredTagRegexp matches valid tag names, anchored at the start and
+	// end of the matched string.
+	anchoredTagRegexp = anchored(TagRegexp)
+
+	// DigestRegexp matches valid digests.
+	DigestRegexp = match(`[A-Za-z][A-Za-z0-9]*(?:[-_+.][A-Za-z][A-Za-z0-9]*)*[:][[:xdigit:]]{32,}`)
+
+	// anchoredDigestRegexp matches valid digests, anchored at the start and
+	// end of the matched string.
+	anchoredDigestRegexp = anchored(DigestRegexp)
+
+	// NameRegexp is the format for the name component of references. The
+	// regexp has capturing groups for the hostname and name part omitting
+	// the separating forward slash from either.
+	NameRegexp = expression(
+		optional(hostnameRegexp, literal(`/`)),
+		nameComponentRegexp,
+		optional(repeated(literal(`/`), nameComponentRegexp)))
+
+	// anchoredNameRegexp is used to parse a name value, capturing the
+	// hostname and trailing components.
+	anchoredNameRegexp = anchored(
+		optional(capture(hostnameRegexp), literal(`/`)),
+		capture(nameComponentRegexp,
+			optional(repeated(literal(`/`), nameComponentRegexp))))
+
+	// ReferenceRegexp is the full supported format of a reference. The regexp
+	// is anchored and has capturing groups for name, tag, and digest
+	// components.
+	ReferenceRegexp = anchored(capture(NameRegexp),
+		optional(literal(":"), capture(TagRegexp)),
+		optional(literal("@"), capture(DigestRegexp)))
+)
+
+// match compiles the string to a regular expression.
+var match = regexp.MustCompile
+
+// literal compiles s into a literal regular expression, escaping any regexp
+// reserved characters.
+func literal(s string) *regexp.Regexp {
+	re := match(regexp.QuoteMeta(s))
+
+	if _, complete := re.LiteralPrefix(); !complete {
+		panic("must be a literal")
+	}
+
+	return re
+}
+
+// expression defines a full expression, where each regular expression must
+// follow the previous.
+func expression(res ...*regexp.Regexp) *regexp.Regexp {
+	var s string
+	for _, re := range res {
+		s += re.String()
+	}
+
+	return match(s)
+}
+
+// optional wraps the expression in a non-capturing group and makes the
+// production optional.
+func optional(res ...*regexp.Regexp) *regexp.Regexp {
+	return match(group(expression(res...)).String() + `?`)
+}
+
+// repeated wraps the regexp in a non-capturing group to get one or more
+// matches.
+func repeated(res ...*regexp.Regexp) *regexp.Regexp {
+	return match(group(expression(res...)).String() + `+`)
+}
+
+// group wraps the regexp in a non-capturing group.
+func group(res ...*regexp.Regexp) *regexp.Regexp {
+	return match(`(?:` + expression(res...).String() + `)`)
+}
+
+// capture wraps the expression in a capturing group.
+func capture(res ...*regexp.Regexp) *regexp.Regexp {
+	return match(`(` + expression(res...).String() + `)`)
+}
+
+// anchored anchors the regular expression by adding start and end delimiters.
+func anchored(res ...*regexp.Regexp) *regexp.Regexp {
+	return match(`^` + expression(res...).String() + `$`)
+}
diff --git a/vendor/github.com/docker/distribution/reference/regexp_test.go b/vendor/github.com/docker/distribution/reference/regexp_test.go
new file mode 100644
index 0000000..2ec3937
--- /dev/null
+++ b/vendor/github.com/docker/distribution/reference/regexp_test.go
@@ -0,0 +1,489 @@
+package reference
+
+import (
+	"regexp"
+	"strings"
+	"testing"
+)
+
+type regexpMatch struct {
+	input string
+	match bool
+	subs  []string
+}
+
+func checkRegexp(t *testing.T, r *regexp.Regexp, m regexpMatch) {
+	matches := r.FindStringSubmatch(m.input)
+	if m.match && matches != nil {
+		if len(matches) != (r.NumSubexp()+1) || matches[0] != m.input {
+			t.Fatalf("Bad match result %#v for %q", matches, m.input)
+		}
+		if len(matches) < (len(m.subs) + 1) {
+			t.Errorf("Expected %d sub matches, only have %d for %q", len(m.subs), len(matches)-1, m.input)
+		}
+		for i := range m.subs {
+			if m.subs[i] != matches[i+1] {
+				t.Errorf("Unexpected submatch %d: %q, expected %q for %q", i+1, matches[i+1], m.subs[i], m.input)
+			}
+		}
+	} else if m.match {
+		t.Errorf("Expected match for %q", m.input)
+	} else if matches != nil {
+		t.Errorf("Unexpected match for %q", m.input)
+	}
+}
+
+func TestHostRegexp(t *testing.T) {
+	hostcases := []regexpMatch{
+		{
+			input: "test.com",
+			match: true,
+		},
+		{
+			input: "test.com:10304",
+			match: true,
+		},
+		{
+			input: "test.com:http",
+			match: false,
+		},
+		{
+			input: "localhost",
+			match: true,
+		},
+		{
+			input: "localhost:8080",
+			match: true,
+		},
+		{
+			input: "a",
+			match: true,
+		},
+		{
+			input: "a.b",
+			match: true,
+		},
+		{
+			input: "ab.cd.com",
+			match: true,
+		},
+		{
+			input: "a-b.com",
+			match: true,
+		},
+		{
+			input: "-ab.com",
+			match: false,
+		},
+		{
+			input: "ab-.com",
+			match: false,
+		},
+		{
+			input: "ab.c-om",
+			match: true,
+		},
+		{
+			input: "ab.-com",
+			match: false,
+		},
+		{
+			input: "ab.com-",
+			match: false,
+		},
+		{
+			input: "0101.com",
+			match: true, // TODO(dmcgowan): valid if this should be allowed
+		},
+		{
+			input: "001a.com",
+			match: true,
+		},
+		{
+			input: "b.gbc.io:443",
+			match: true,
+		},
+		{
+			input: "b.gbc.io",
+			match: true,
+		},
+		{
+			input: "xn--n3h.com", // ☃.com in punycode
+			match: true,
+		},
+		{
+			input: "Asdf.com", // uppercase character
+			match: true,
+		},
+	}
+	r := regexp.MustCompile(`^` + hostnameRegexp.String() + `$`)
+	for i := range hostcases {
+		checkRegexp(t, r, hostcases[i])
+	}
+}
+
+func TestFullNameRegexp(t *testing.T) {
+	if anchoredNameRegexp.NumSubexp() != 2 {
+		t.Fatalf("anchored name regexp should have two submatches: %v, %v != 2",
+			anchoredNameRegexp, anchoredNameRegexp.NumSubexp())
+	}
+
+	testcases := []regexpMatch{
+		{
+			input: "",
+			match: false,
+		},
+		{
+			input: "short",
+			match: true,
+			subs:  []string{"", "short"},
+		},
+		{
+			input: "simple/name",
+			match: true,
+			subs:  []string{"simple", "name"},
+		},
+		{
+			input: "library/ubuntu",
+			match: true,
+			subs:  []string{"library", "ubuntu"},
+		},
+		{
+			input: "docker/stevvooe/app",
+			match: true,
+			subs:  []string{"docker", "stevvooe/app"},
+		},
+		{
+			input: "aa/aa/aa/aa/aa/aa/aa/aa/aa/bb/bb/bb/bb/bb/bb",
+			match: true,
+			subs:  []string{"aa", "aa/aa/aa/aa/aa/aa/aa/aa/bb/bb/bb/bb/bb/bb"},
+		},
+		{
+			input: "aa/aa/bb/bb/bb",
+			match: true,
+			subs:  []string{"aa", "aa/bb/bb/bb"},
+		},
+		{
+			input: "a/a/a/a",
+			match: true,
+			subs:  []string{"a", "a/a/a"},
+		},
+		{
+			input: "a/a/a/a/",
+			match: false,
+		},
+		{
+			input: "a//a/a",
+			match: false,
+		},
+		{
+			input: "a",
+			match: true,
+			subs:  []string{"", "a"},
+		},
+		{
+			input: "a/aa",
+			match: true,
+			subs:  []string{"a", "aa"},
+		},
+		{
+			input: "a/aa/a",
+			match: true,
+			subs:  []string{"a", "aa/a"},
+		},
+		{
+			input: "foo.com",
+			match: true,
+			subs:  []string{"", "foo.com"},
+		},
+		{
+			input: "foo.com/",
+			match: false,
+		},
+		{
+			input: "foo.com:8080/bar",
+			match: true,
+			subs:  []string{"foo.com:8080", "bar"},
+		},
+		{
+			input: "foo.com:http/bar",
+			match: false,
+		},
+		{
+			input: "foo.com/bar",
+			match: true,
+			subs:  []string{"foo.com", "bar"},
+		},
+		{
+			input: "foo.com/bar/baz",
+			match: true,
+			subs:  []string{"foo.com", "bar/baz"},
+		},
+		{
+			input: "localhost:8080/bar",
+			match: true,
+			subs:  []string{"localhost:8080", "bar"},
+		},
+		{
+			input: "sub-dom1.foo.com/bar/baz/quux",
+			match: true,
+			subs:  []string{"sub-dom1.foo.com", "bar/baz/quux"},
+		},
+		{
+			input: "blog.foo.com/bar/baz",
+			match: true,
+			subs:  []string{"blog.foo.com", "bar/baz"},
+		},
+		{
+			input: "a^a",
+			match: false,
+		},
+		{
+			input: "aa/asdf$$^/aa",
+			match: false,
+		},
+		{
+			input: "asdf$$^/aa",
+			match: false,
+		},
+		{
+			input: "aa-a/a",
+			match: true,
+			subs:  []string{"aa-a", "a"},
+		},
+		{
+			input: strings.Repeat("a/", 128) + "a",
+			match: true,
+			subs:  []string{"a", strings.Repeat("a/", 127) + "a"},
+		},
+		{
+			input: "a-/a/a/a",
+			match: false,
+		},
+		{
+			input: "foo.com/a-/a/a",
+			match: false,
+		},
+		{
+			input: "-foo/bar",
+			match: false,
+		},
+		{
+			input: "foo/bar-",
+			match: false,
+		},
+		{
+			input: "foo-/bar",
+			match: false,
+		},
+		{
+			input: "foo/-bar",
+			match: false,
+		},
+		{
+			input: "_foo/bar",
+			match: false,
+		},
+		{
+			input: "foo_bar",
+			match: true,
+			subs:  []string{"", "foo_bar"},
+		},
+		{
+			input: "foo_bar.com",
+			match: true,
+			subs:  []string{"", "foo_bar.com"},
+		},
+		{
+			input: "foo_bar.com:8080",
+			match: false,
+		},
+		{
+			input: "foo_bar.com:8080/app",
+			match: false,
+		},
+		{
+			input: "foo.com/foo_bar",
+			match: true,
+			subs:  []string{"foo.com", "foo_bar"},
+		},
+		{
+			input: "____/____",
+			match: false,
+		},
+		{
+			input: "_docker/_docker",
+			match: false,
+		},
+		{
+			input: "docker_/docker_",
+			match: false,
+		},
+		{
+			input: "b.gcr.io/test.example.com/my-app",
+			match: true,
+			subs:  []string{"b.gcr.io", "test.example.com/my-app"},
+		},
+		{
+			input: "xn--n3h.com/myimage", // ☃.com in punycode
+			match: true,
+			subs:  []string{"xn--n3h.com", "myimage"},
+		},
+		{
+			input: "xn--7o8h.com/myimage", // 🐳.com in punycode
+			match: true,
+			subs:  []string{"xn--7o8h.com", "myimage"},
+		},
+		{
+			input: "example.com/xn--7o8h.com/myimage", // 🐳.com in punycode
+			match: true,
+			subs:  []string{"example.com", "xn--7o8h.com/myimage"},
+		},
+		{
+			input: "example.com/some_separator__underscore/myimage",
+			match: true,
+			subs:  []string{"example.com", "some_separator__underscore/myimage"},
+		},
+		{
+			input: "example.com/__underscore/myimage",
+			match: false,
+		},
+		{
+			input: "example.com/..dots/myimage",
+			match: false,
+		},
+		{
+			input: "example.com/.dots/myimage",
+			match: false,
+		},
+		{
+			input: "example.com/nodouble..dots/myimage",
+			match: false,
+		},
+		{
+			input: "example.com/nodouble..dots/myimage",
+			match: false,
+		},
+		{
+			input: "docker./docker",
+			match: false,
+		},
+		{
+			input: ".docker/docker",
+			match: false,
+		},
+		{
+			input: "docker-/docker",
+			match: false,
+		},
+		{
+			input: "-docker/docker",
+			match: false,
+		},
+		{
+			input: "do..cker/docker",
+			match: false,
+		},
+		{
+			input: "do__cker:8080/docker",
+			match: false,
+		},
+		{
+			input: "do__cker/docker",
+			match: true,
+			subs:  []string{"", "do__cker/docker"},
+		},
+		{
+			input: "b.gcr.io/test.example.com/my-app",
+			match: true,
+			subs:  []string{"b.gcr.io", "test.example.com/my-app"},
+		},
+		{
+			input: "registry.io/foo/project--id.module--name.ver---sion--name",
+			match: true,
+			subs:  []string{"registry.io", "foo/project--id.module--name.ver---sion--name"},
+		},
+		{
+			input: "Asdf.com/foo/bar", // uppercase character in hostname
+			match: true,
+		},
+		{
+			input: "Foo/FarB", // uppercase characters in remote name
+			match: false,
+		},
+	}
+	for i := range testcases {
+		checkRegexp(t, anchoredNameRegexp, testcases[i])
+	}
+}
+
+func TestReferenceRegexp(t *testing.T) {
+	if ReferenceRegexp.NumSubexp() != 3 {
+		t.Fatalf("anchored name regexp should have three submatches: %v, %v != 3",
+			ReferenceRegexp, ReferenceRegexp.NumSubexp())
+	}
+
+	testcases := []regexpMatch{
+		{
+			input: "registry.com:8080/myapp:tag",
+			match: true,
+			subs:  []string{"registry.com:8080/myapp", "tag", ""},
+		},
+		{
+			input: "registry.com:8080/myapp@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912",
+			match: true,
+			subs:  []string{"registry.com:8080/myapp", "", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"},
+		},
+		{
+			input: "registry.com:8080/myapp:tag2@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912",
+			match: true,
+			subs:  []string{"registry.com:8080/myapp", "tag2", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"},
+		},
+		{
+			input: "registry.com:8080/myapp@sha256:badbadbadbad",
+			match: false,
+		},
+		{
+			input: "registry.com:8080/myapp:invalid~tag",
+			match: false,
+		},
+		{
+			input: "bad_hostname.com:8080/myapp:tag",
+			match: false,
+		},
+		{
+			input:// localhost treated as name, missing tag with 8080 as tag
+			"localhost:8080@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912",
+			match: true,
+			subs:  []string{"localhost", "8080", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"},
+		},
+		{
+			input: "localhost:8080/name@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912",
+			match: true,
+			subs:  []string{"localhost:8080/name", "", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"},
+		},
+		{
+			input: "localhost:http/name@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912",
+			match: false,
+		},
+		{
+			// localhost will be treated as an image name without a host
+			input: "localhost@sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912",
+			match: true,
+			subs:  []string{"localhost", "", "sha256:be178c0543eb17f5f3043021c9e5fcf30285e557a4fc309cce97ff9ca6182912"},
+		},
+		{
+			input: "registry.com:8080/myapp@bad",
+			match: false,
+		},
+		{
+			input: "registry.com:8080/myapp@2bad",
+			match: false, // TODO(dmcgowan): Support this as valid
+		},
+	}
+
+	for i := range testcases {
+		checkRegexp(t, ReferenceRegexp, testcases[i])
+	}
+
+}
diff --git a/vendor/github.com/docker/distribution/registry.go b/vendor/github.com/docker/distribution/registry.go
new file mode 100644
index 0000000..1ede31e
--- /dev/null
+++ b/vendor/github.com/docker/distribution/registry.go
@@ -0,0 +1,97 @@
+package distribution
+
+import (
+	"github.com/docker/distribution/context"
+	"github.com/docker/distribution/reference"
+)
+
+// Scope defines the set of items that match a namespace.
+type Scope interface {
+	// Contains returns true if the name belongs to the namespace.
+	Contains(name string) bool
+}
+
+type fullScope struct{}
+
+func (f fullScope) Contains(string) bool {
+	return true
+}
+
+// GlobalScope represents the full namespace scope which contains
+// all other scopes.
+var GlobalScope = Scope(fullScope{})
+
+// Namespace represents a collection of repositories, addressable by name.
+// Generally, a namespace is backed by a set of one or more services,
+// providing facilities such as registry access, trust, and indexing.
+type Namespace interface {
+	// Scope describes the names that can be used with this Namespace. The
+	// global namespace will have a scope that matches all names. The scope
+	// effectively provides an identity for the namespace.
+	Scope() Scope
+
+	// Repository should return a reference to the named repository. The
+	// registry may or may not have the repository but should always return a
+	// reference.
+	Repository(ctx context.Context, name reference.Named) (Repository, error)
+
+	// Repositories fills 'repos' with a lexigraphically sorted catalog of repositories
+	// up to the size of 'repos' and returns the value 'n' for the number of entries
+	// which were filled.  'last' contains an offset in the catalog, and 'err' will be
+	// set to io.EOF if there are no more entries to obtain.
+	Repositories(ctx context.Context, repos []string, last string) (n int, err error)
+
+	// Blobs returns a blob enumerator to access all blobs
+	Blobs() BlobEnumerator
+
+	// BlobStatter returns a BlobStatter to control
+	BlobStatter() BlobStatter
+}
+
+// RepositoryEnumerator describes an operation to enumerate repositories
+type RepositoryEnumerator interface {
+	Enumerate(ctx context.Context, ingester func(string) error) error
+}
+
+// ManifestServiceOption is a function argument for Manifest Service methods
+type ManifestServiceOption interface {
+	Apply(ManifestService) error
+}
+
+// WithTag allows a tag to be passed into Put
+func WithTag(tag string) ManifestServiceOption {
+	return WithTagOption{tag}
+}
+
+// WithTagOption holds a tag
+type WithTagOption struct{ Tag string }
+
+// Apply conforms to the ManifestServiceOption interface
+func (o WithTagOption) Apply(m ManifestService) error {
+	// no implementation
+	return nil
+}
+
+// Repository is a named collection of manifests and layers.
+type Repository interface {
+	// Named returns the name of the repository.
+	Named() reference.Named
+
+	// Manifests returns a reference to this repository's manifest service.
+	// with the supplied options applied.
+	Manifests(ctx context.Context, options ...ManifestServiceOption) (ManifestService, error)
+
+	// Blobs returns a reference to this repository's blob service.
+	Blobs(ctx context.Context) BlobStore
+
+	// TODO(stevvooe): The above BlobStore return can probably be relaxed to
+	// be a BlobService for use with clients. This will allow such
+	// implementations to avoid implementing ServeBlob.
+
+	// Tags returns a reference to this repositories tag service
+	Tags(ctx context.Context) TagService
+}
+
+// TODO(stevvooe): Must add close methods to all these. May want to change the
+// way instances are created to better reflect internal dependency
+// relationships.
diff --git a/vendor/github.com/docker/distribution/tags.go b/vendor/github.com/docker/distribution/tags.go
new file mode 100644
index 0000000..5030565
--- /dev/null
+++ b/vendor/github.com/docker/distribution/tags.go
@@ -0,0 +1,27 @@
+package distribution
+
+import (
+	"github.com/docker/distribution/context"
+)
+
+// TagService provides access to information about tagged objects.
+type TagService interface {
+	// Get retrieves the descriptor identified by the tag. Some
+	// implementations may differentiate between "trusted" tags and
+	// "untrusted" tags. If a tag is "untrusted", the mapping will be returned
+	// as an ErrTagUntrusted error, with the target descriptor.
+	Get(ctx context.Context, tag string) (Descriptor, error)
+
+	// Tag associates the tag with the provided descriptor, updating the
+	// current association, if needed.
+	Tag(ctx context.Context, tag string, desc Descriptor) error
+
+	// Untag removes the given tag association
+	Untag(ctx context.Context, tag string) error
+
+	// All returns the set of tags managed by this tag service
+	All(ctx context.Context) ([]string, error)
+
+	// Lookup returns the set of tags referencing the given digest.
+	Lookup(ctx context.Context, digest Descriptor) ([]string, error)
+}
diff --git a/vendor/github.com/go-playground/locales/.gitignore b/vendor/github.com/go-playground/locales/.gitignore
new file mode 100644
index 0000000..daf913b
--- /dev/null
+++ b/vendor/github.com/go-playground/locales/.gitignore
@@ -0,0 +1,24 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
diff --git a/vendor/github.com/go-playground/locales/LICENSE b/vendor/github.com/go-playground/locales/LICENSE
new file mode 100644
index 0000000..75854ac
--- /dev/null
+++ b/vendor/github.com/go-playground/locales/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Go Playground
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/vendor/github.com/go-playground/locales/README.md b/vendor/github.com/go-playground/locales/README.md
new file mode 100644
index 0000000..b462c93
--- /dev/null
+++ b/vendor/github.com/go-playground/locales/README.md
@@ -0,0 +1,172 @@
+## locales
+<img align="right" src="https://raw.githubusercontent.com/go-playground/locales/master/logo.png">![Project status](https://img.shields.io/badge/version-0.11.1-green.svg)
+[![Build Status](https://semaphoreci.com/api/v1/joeybloggs/locales/branches/master/badge.svg)](https://semaphoreci.com/joeybloggs/locales)
+[![Go Report Card](https://goreportcard.com/badge/github.com/go-playground/locales)](https://goreportcard.com/report/github.com/go-playground/locales)
+[![GoDoc](https://godoc.org/github.com/go-playground/locales?status.svg)](https://godoc.org/github.com/go-playground/locales)
+![License](https://img.shields.io/dub/l/vibe-d.svg)
+[![Gitter](https://badges.gitter.im/go-playground/locales.svg)](https://gitter.im/go-playground/locales?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
+
+Locales is a set of locales generated from the [Unicode CLDR Project](http://cldr.unicode.org/) which can be used independently or within
+an i18n package; these were built for use with, but not exclusive to, [Universal Translator](https://github.com/go-playground/universal-translator).
+
+Features
+--------
+- [x] Rules generated from the latest [CLDR](http://cldr.unicode.org/index/downloads) data, v31.0.1
+- [x] Contains Cardinal, Ordinal and Range Plural Rules
+- [x] Contains Month, Weekday and Timezone translations built in
+- [x] Contains Date & Time formatting functions
+- [x] Contains Number, Currency, Accounting and Percent formatting functions
+- [x] Supports the "Gregorian" calendar only ( my time isn't unlimited, had to draw the line somewhere )
+
+Full Tests
+--------------------
+I could sure use your help adding tests for every locale, it is a huge undertaking and I just don't have the free time to do it all at the moment;
+any help would be **greatly appreciated!!!!** please see [issue](https://github.com/go-playground/locales/issues/1) for details.
+
+Installation
+-----------
+
+Use go get 
+
+```shell
+go get github.com/go-playground/locales
+```  
+
+NOTES
+--------
+You'll notice most return types are []byte, this is because most of the time the results will be concatenated with a larger body
+of text and can avoid some allocations if already appending to a byte array, otherwise just cast as string.
+
+Usage
+-------
+```go
+package main
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/go-playground/locales/currency"
+	"github.com/go-playground/locales/en_CA"
+)
+
+func main() {
+
+	loc, _ := time.LoadLocation("America/Toronto")
+	datetime := time.Date(2016, 02, 03, 9, 0, 1, 0, loc)
+
+	l := en_CA.New()
+
+	// Dates
+	fmt.Println(l.FmtDateFull(datetime))
+	fmt.Println(l.FmtDateLong(datetime))
+	fmt.Println(l.FmtDateMedium(datetime))
+	fmt.Println(l.FmtDateShort(datetime))
+
+	// Times
+	fmt.Println(l.FmtTimeFull(datetime))
+	fmt.Println(l.FmtTimeLong(datetime))
+	fmt.Println(l.FmtTimeMedium(datetime))
+	fmt.Println(l.FmtTimeShort(datetime))
+
+	// Months Wide
+	fmt.Println(l.MonthWide(time.January))
+	fmt.Println(l.MonthWide(time.February))
+	fmt.Println(l.MonthWide(time.March))
+	// ...
+
+	// Months Abbreviated
+	fmt.Println(l.MonthAbbreviated(time.January))
+	fmt.Println(l.MonthAbbreviated(time.February))
+	fmt.Println(l.MonthAbbreviated(time.March))
+	// ...
+
+	// Months Narrow
+	fmt.Println(l.MonthNarrow(time.January))
+	fmt.Println(l.MonthNarrow(time.February))
+	fmt.Println(l.MonthNarrow(time.March))
+	// ...
+
+	// Weekdays Wide
+	fmt.Println(l.WeekdayWide(time.Sunday))
+	fmt.Println(l.WeekdayWide(time.Monday))
+	fmt.Println(l.WeekdayWide(time.Tuesday))
+	// ...
+
+	// Weekdays Abbreviated
+	fmt.Println(l.WeekdayAbbreviated(time.Sunday))
+	fmt.Println(l.WeekdayAbbreviated(time.Monday))
+	fmt.Println(l.WeekdayAbbreviated(time.Tuesday))
+	// ...
+
+	// Weekdays Short
+	fmt.Println(l.WeekdayShort(time.Sunday))
+	fmt.Println(l.WeekdayShort(time.Monday))
+	fmt.Println(l.WeekdayShort(time.Tuesday))
+	// ...
+
+	// Weekdays Narrow
+	fmt.Println(l.WeekdayNarrow(time.Sunday))
+	fmt.Println(l.WeekdayNarrow(time.Monday))
+	fmt.Println(l.WeekdayNarrow(time.Tuesday))
+	// ...
+
+	var f64 float64
+
+	f64 = -10356.4523
+
+	// Number
+	fmt.Println(l.FmtNumber(f64, 2))
+
+	// Currency
+	fmt.Println(l.FmtCurrency(f64, 2, currency.CAD))
+	fmt.Println(l.FmtCurrency(f64, 2, currency.USD))
+
+	// Accounting
+	fmt.Println(l.FmtAccounting(f64, 2, currency.CAD))
+	fmt.Println(l.FmtAccounting(f64, 2, currency.USD))
+
+	f64 = 78.12
+
+	// Percent
+	fmt.Println(l.FmtPercent(f64, 0))
+
+	// Plural Rules for locale, so you know what rules you must cover
+	fmt.Println(l.PluralsCardinal())
+	fmt.Println(l.PluralsOrdinal())
+
+	// Cardinal Plural Rules
+	fmt.Println(l.CardinalPluralRule(1, 0))
+	fmt.Println(l.CardinalPluralRule(1.0, 0))
+	fmt.Println(l.CardinalPluralRule(1.0, 1))
+	fmt.Println(l.CardinalPluralRule(3, 0))
+
+	// Ordinal Plural Rules
+	fmt.Println(l.OrdinalPluralRule(21, 0)) // 21st
+	fmt.Println(l.OrdinalPluralRule(22, 0)) // 22nd
+	fmt.Println(l.OrdinalPluralRule(33, 0)) // 33rd
+	fmt.Println(l.OrdinalPluralRule(34, 0)) // 34th
+
+	// Range Plural Rules
+	fmt.Println(l.RangePluralRule(1, 0, 1, 0)) // 1-1
+	fmt.Println(l.RangePluralRule(1, 0, 2, 0)) // 1-2
+	fmt.Println(l.RangePluralRule(5, 0, 8, 0)) // 5-8
+}
+```
+
+NOTES:
+-------
+These rules were generated from the [Unicode CLDR Project](http://cldr.unicode.org/), if you encounter any issues
+I strongly encourage contributing to the CLDR project to get the locale information corrected and the next time 
+these locales are regenerated the fix will come with.
+
+I do however realize that time constraints are often important and so there are two options:
+
+1. Create your own locale, copy, paste and modify, and ensure it complies with the `Translator` interface.
+2. Add an exception in the locale generation code directly and once regenerated, fix will be in place.
+
+Please to not make fixes inside the locale files, they WILL get overwritten when the locales are regenerated.
+
+License
+------
+Distributed under MIT License, please see license file in code for more details.
diff --git a/vendor/github.com/go-playground/locales/cu/cu.go b/vendor/github.com/go-playground/locales/cu/cu.go
new file mode 100644
index 0000000..0ec6b3a
--- /dev/null
+++ b/vendor/github.com/go-playground/locales/cu/cu.go
@@ -0,0 +1,609 @@
+package cu
+
+import (
+	"math"
+	"strconv"
+	"time"
+
+	"github.com/go-playground/locales"
+	"github.com/go-playground/locales/currency"
+)
+
+type cu struct {
+	locale                 string
+	pluralsCardinal        []locales.PluralRule
+	pluralsOrdinal         []locales.PluralRule
+	pluralsRange           []locales.PluralRule
+	decimal                string
+	group                  string
+	minus                  string
+	percent                string
+	percentSuffix          string
+	perMille               string
+	timeSeparator          string
+	inifinity              string
+	currencies             []string // idx = enum of currency code
+	currencyPositiveSuffix string
+	currencyNegativeSuffix string
+	monthsAbbreviated      []string
+	monthsNarrow           []string
+	monthsWide             []string
+	daysAbbreviated        []string
+	daysNarrow             []string
+	daysShort              []string
+	daysWide               []string
+	periodsAbbreviated     []string
+	periodsNarrow          []string
+	periodsShort           []string
+	periodsWide            []string
+	erasAbbreviated        []string
+	erasNarrow             []string
+	erasWide               []string
+	timezones              map[string]string
+}
+
+// New returns a new instance of translator for the 'cu' locale
+func New() locales.Translator {
+	return &cu{
+		locale:                 "cu",
+		pluralsCardinal:        nil,
+		pluralsOrdinal:         nil,
+		pluralsRange:           nil,
+		decimal:                ",",
+		group:                  " ",
+		minus:                  "-",
+		percent:                "%",
+		timeSeparator:          ":",
+		inifinity:              "∞",
+		currencies:             []string{"ADP", "AED", "AFA", "AFN", "ALK", "ALL", "AMD", "ANG", "AOA", "AOK", "AON", "AOR", "ARA", "ARL", "ARM", "ARP", "ARS", "ATS", "AUD", "AWG", "AZM", "AZN", "BAD", "BAM", "BAN", "BBD", "BDT", "BEC", "BEF", "BEL", "BGL", "BGM", "BGN", "BGO", "BHD", "BIF", "BMD", "BND", "BOB", "BOL", "BOP", "BOV", "BRB", "BRC", "BRE", "R$", "BRN", "BRR", "BRZ", "BSD", "BTN", "BUK", "BWP", "BYB", "BYN", "BYR", "BZD", "CAD", "CDF", "CHE", "CHF", "CHW", "CLE", "CLF", "CLP", "CNX", "CN¥", "COP", "COU", "CRC", "CSD", "CSK", "CUC", "CUP", "CVE", "CYP", "CZK", "DDM", "DEM", "DJF", "DKK", "DOP", "DZD", "ECS", "ECV", "EEK", "EGP", "ERN", "ESA", "ESB", "ESP", "ETB", "€", "FIM", "FJD", "FKP", "FRF", "£", "GEK", "GEL", "GHC", "GHS", "GIP", "GMD", "GNF", "GNS", "GQE", "GRD", "GTQ", "GWE", "GWP", "GYD", "HKD", "HNL", "HRD", "HRK", "HTG", "HUF", "IDR", "IEP", "ILP", "ILR", "ILS", "₹", "IQD", "IRR", "ISJ", "ISK", "ITL", "JMD", "JOD", "JP¥", "KES", "KGS", "KHR", "KMF", "KPW", "KRH", "KRO", "KRW", "KWD", "KYD", "₸", "LAK", "LBP", "LKR", "LRD", "LSL", "LTL", "LTT", "LUC", "LUF", "LUL", "LVL", "LVR", "LYD", "MAD", "MAF", "MCF", "MDC", "MDL", "MGA", "MGF", "MKD", "MKN", "MLF", "MMK", "MNT", "MOP", "MRO", "MTL", "MTP", "MUR", "MVP", "MVR", "MWK", "MXN", "MXP", "MXV", "MYR", "MZE", "MZM", "MZN", "NAD", "NGN", "NIC", "NIO", "NLG", "NOK", "NPR", "NZD", "OMR", "PAB", "PEI", "PEN", "PES", "PGK", "PHP", "PKR", "PLN", "PLZ", "PTE", "PYG", "QAR", "RHD", "ROL", "RON", "RSD", "₽", "RUR", "RWF", "SAR", "SBD", "SCR", "SDD", "SDG", "SDP", "SEK", "SGD", "SHP", "SIT", "SKK", "SLL", "SOS", "SRD", "SRG", "SSP", "STD", "SUR", "SVC", "SYP", "SZL", "THB", "TJR", "TJS", "TMM", "TMT", "TND", "TOP", "TPE", "TRL", "TRY", "TTD", "TWD", "TZS", "₴", "UAK", "UGS", "UGX", "$", "USN", "USS", "UYI", "UYP", "UYU", "UZS", "VEB", "VEF", "VND", "VNN", "VUV", "WST", "XAF", "XAG", "XAU", "XBA", "XBB", "XBC", "XBD", "XCD", "XDR", "XEU", "XFO", "XFU", "XOF", "XPD", "XPF", "XPT", "XRE", "XSU", "XTS", "XUA", "XXX", "YDD", "YER", "YUD", "YUM", "YUN", "YUR", "ZAL", "ZAR", "ZMK", "ZMW", "ZRN", "ZRZ", "ZWD", "ZWL", "ZWR"},
+		percentSuffix:          " ",
+		currencyPositiveSuffix: " ",
+		currencyNegativeSuffix: " ",
+		monthsAbbreviated:      []string{"", "і҆аⷩ҇", "феⷡ҇", "маⷬ҇", "а҆пⷬ҇", "маꙵ", "і҆ꙋⷩ҇", "і҆ꙋⷧ҇", "а҆́ѵⷢ҇", "сеⷫ҇", "ѻ҆кⷮ", "ноеⷨ", "деⷦ҇"},
+		monthsNarrow:           []string{"", "І҆", "Ф", "М", "А҆", "М", "І҆", "І҆", "А҆", "С", "Ѻ҆", "Н", "Д"},
+		monthsWide:             []string{"", "і҆аннꙋа́рїа", "феврꙋа́рїа", "ма́рта", "а҆прі́ллїа", "ма́їа", "і҆ꙋ́нїа", "і҆ꙋ́лїа", "а҆́ѵгꙋста", "септе́мврїа", "ѻ҆ктѡ́врїа", "ное́мврїа", "деке́мврїа"},
+		daysAbbreviated:        []string{"ндⷧ҇ѧ", "пнⷣе", "втоⷬ҇", "срⷣе", "чеⷦ҇", "пѧⷦ҇", "сꙋⷠ҇"},
+		daysNarrow:             []string{"Н", "П", "В", "С", "Ч", "П", "С"},
+		daysShort:              []string{"ндⷧ҇ѧ", "пнⷣе", "втоⷬ҇", "срⷣе", "чеⷦ҇", "пѧⷦ҇", "сꙋⷠ҇"},
+		daysWide:               []string{"недѣ́лѧ", "понедѣ́льникъ", "вто́рникъ", "среда̀", "четверто́къ", "пѧто́къ", "сꙋббѡ́та"},
+		periodsAbbreviated:     []string{"ДП", "ПП"},
+		periodsNarrow:          []string{"ДП", "ПП"},
+		periodsWide:            []string{"ДП", "ПП"},
+		erasAbbreviated:        []string{"", ""},
+		erasNarrow:             []string{"", ""},
+		erasWide:               []string{"пре́дъ р.\u00a0х.", "по р.\u00a0х."},
+		timezones:              map[string]string{"CLT": "CLT", "CLST": "CLST", "WEZ": "западноєѵрѡпе́йское зи́мнее вре́мѧ", "CHADT": "CHADT", "PST": "тихоѻкеа́нское зи́мнее вре́мѧ", "HADT": "HADT", "LHDT": "LHDT", "ADT": "а҆тланті́ческое лѣ́тнее вре́мѧ", "ACWDT": "ACWDT", "MYT": "MYT", "WIT": "WIT", "NZDT": "NZDT", "EAT": "EAT", "SRT": "SRT", "HNEG": "HNEG", "HAT": "HAT", "GMT": "сре́днее вре́мѧ по грі́нꙋичꙋ", "CDT": "среднеамерїка́нское лѣ́тнее вре́мѧ", "UYST": "UYST", "HAST": "HAST", "ARST": "ARST", "AST": "а҆тланті́ческое зи́мнее вре́мѧ", "AWST": "AWST", "MEZ": "среднеєѵрѡпе́йское зи́мнее вре́мѧ", "JDT": "JDT", "ECT": "ECT", "JST": "JST", "OESZ": "восточноєѵрѡпе́йское лѣ́тнее вре́мѧ", "COST": "COST", "HECU": "HECU", "HEPM": "HEPM", "HEEG": "HEEG", "HNT": "HNT", "AKST": "AKST", "AEDT": "AEDT", "COT": "COT", "EST": "восточноамерїка́нское зи́мнее вре́мѧ", "EDT": "восточноамерїка́нское лѣ́тнее вре́мѧ", "TMT": "TMT", "WARST": "WARST", "VET": "VET", "GFT": "GFT", "ACWST": "ACWST", "TMST": "TMST", "HEOG": "HEOG", "WAST": "WAST", "CAT": "CAT", "HEPMX": "HEPMX", "∅∅∅": "∅∅∅", "ART": "ART", "SGT": "SGT", "HNNOMX": "HNNOMX", "HKT": "HKT", "HNCU": "HNCU", "HNPM": "HNPM", "BT": "BT", "NZST": "NZST", "IST": "IST", "WESZ": "западноєѵрѡпе́йское лѣ́тнее вре́мѧ", "MESZ": "среднеєѵрѡпе́йское лѣ́тнее вре́мѧ", "ACDT": "ACDT", "AWDT": "AWDT", "SAST": "SAST", "AKDT": "AKDT", "HNPMX": "HNPMX", "WIB": "WIB", "CHAST": "CHAST", "MDT": "а҆мерїка́нское наго́рнее лѣ́тнее вре́мѧ", "WITA": "WITA", "OEZ": "восточноєѵрѡпе́йское зи́мнее вре́мѧ", "UYT": "UYT", "MST": "а҆мерїка́нское наго́рнее зи́мнее вре́мѧ", "AEST": "AEST", "PDT": "тихоѻкеа́нское лѣ́тнее вре́мѧ", "HKST": "HKST", "GYT": "GYT", "ACST": "ACST", "BOT": "BOT", "CST": "среднеамерїка́нское зи́мнее вре́мѧ", "LHST": "LHST", "WART": "WART", "HENOMX": "HENOMX", "HNOG": "HNOG", "WAT": "WAT", "ChST": "ChST"},
+	}
+}
+
+// Locale returns the current translators string locale
+func (cu *cu) Locale() string {
+	return cu.locale
+}
+
+// PluralsCardinal returns the list of cardinal plural rules associated with 'cu'
+func (cu *cu) PluralsCardinal() []locales.PluralRule {
+	return cu.pluralsCardinal
+}
+
+// PluralsOrdinal returns the list of ordinal plural rules associated with 'cu'
+func (cu *cu) PluralsOrdinal() []locales.PluralRule {
+	return cu.pluralsOrdinal
+}
+
+// PluralsRange returns the list of range plural rules associated with 'cu'
+func (cu *cu) PluralsRange() []locales.PluralRule {
+	return cu.pluralsRange
+}
+
+// CardinalPluralRule returns the cardinal PluralRule given 'num' and digits/precision of 'v' for 'cu'
+func (cu *cu) CardinalPluralRule(num float64, v uint64) locales.PluralRule {
+	return locales.PluralRuleUnknown
+}
+
+// OrdinalPluralRule returns the ordinal PluralRule given 'num' and digits/precision of 'v' for 'cu'
+func (cu *cu) OrdinalPluralRule(num float64, v uint64) locales.PluralRule {
+	return locales.PluralRuleUnknown
+}
+
+// RangePluralRule returns the ordinal PluralRule given 'num1', 'num2' and digits/precision of 'v1' and 'v2' for 'cu'
+func (cu *cu) RangePluralRule(num1 float64, v1 uint64, num2 float64, v2 uint64) locales.PluralRule {
+	return locales.PluralRuleUnknown
+}
+
+// MonthAbbreviated returns the locales abbreviated month given the 'month' provided
+func (cu *cu) MonthAbbreviated(month time.Month) string {
+	return cu.monthsAbbreviated[month]
+}
+
+// MonthsAbbreviated returns the locales abbreviated months
+func (cu *cu) MonthsAbbreviated() []string {
+	return cu.monthsAbbreviated[1:]
+}
+
+// MonthNarrow returns the locales narrow month given the 'month' provided
+func (cu *cu) MonthNarrow(month time.Month) string {
+	return cu.monthsNarrow[month]
+}
+
+// MonthsNarrow returns the locales narrow months
+func (cu *cu) MonthsNarrow() []string {
+	return cu.monthsNarrow[1:]
+}
+
+// MonthWide returns the locales wide month given the 'month' provided
+func (cu *cu) MonthWide(month time.Month) string {
+	return cu.monthsWide[month]
+}
+
+// MonthsWide returns the locales wide months
+func (cu *cu) MonthsWide() []string {
+	return cu.monthsWide[1:]
+}
+
+// WeekdayAbbreviated returns the locales abbreviated weekday given the 'weekday' provided
+func (cu *cu) WeekdayAbbreviated(weekday time.Weekday) string {
+	return cu.daysAbbreviated[weekday]
+}
+
+// WeekdaysAbbreviated returns the locales abbreviated weekdays
+func (cu *cu) WeekdaysAbbreviated() []string {
+	return cu.daysAbbreviated
+}
+
+// WeekdayNarrow returns the locales narrow weekday given the 'weekday' provided
+func (cu *cu) WeekdayNarrow(weekday time.Weekday) string {
+	return cu.daysNarrow[weekday]
+}
+
+// WeekdaysNarrow returns the locales narrow weekdays
+func (cu *cu) WeekdaysNarrow() []string {
+	return cu.daysNarrow
+}
+
+// WeekdayShort returns the locales short weekday given the 'weekday' provided
+func (cu *cu) WeekdayShort(weekday time.Weekday) string {
+	return cu.daysShort[weekday]
+}
+
+// WeekdaysShort returns the locales short weekdays
+func (cu *cu) WeekdaysShort() []string {
+	return cu.daysShort
+}
+
+// WeekdayWide returns the locales wide weekday given the 'weekday' provided
+func (cu *cu) WeekdayWide(weekday time.Weekday) string {
+	return cu.daysWide[weekday]
+}
+
+// WeekdaysWide returns the locales wide weekdays
+func (cu *cu) WeekdaysWide() []string {
+	return cu.daysWide
+}
+
+// Decimal returns the decimal point of number
+func (cu *cu) Decimal() string {
+	return cu.decimal
+}
+
+// Group returns the group of number
+func (cu *cu) Group() string {
+	return cu.group
+}
+
+// Group returns the minus sign of number
+func (cu *cu) Minus() string {
+	return cu.minus
+}
+
+// FmtNumber returns 'num' with digits/precision of 'v' for 'cu' and handles both Whole and Real numbers based on 'v'
+func (cu *cu) FmtNumber(num float64, v uint64) string {
+
+	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
+	l := len(s) + 2 + 2*len(s[:len(s)-int(v)-1])/3
+	count := 0
+	inWhole := v == 0
+	b := make([]byte, 0, l)
+
+	for i := len(s) - 1; i >= 0; i-- {
+
+		if s[i] == '.' {
+			b = append(b, cu.decimal[0])
+			inWhole = true
+			continue
+		}
+
+		if inWhole {
+			if count == 3 {
+				for j := len(cu.group) - 1; j >= 0; j-- {
+					b = append(b, cu.group[j])
+				}
+				count = 1
+			} else {
+				count++
+			}
+		}
+
+		b = append(b, s[i])
+	}
+
+	if num < 0 {
+		b = append(b, cu.minus[0])
+	}
+
+	// reverse
+	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
+		b[i], b[j] = b[j], b[i]
+	}
+
+	return string(b)
+}
+
+// FmtPercent returns 'num' with digits/precision of 'v' for 'cu' and handles both Whole and Real numbers based on 'v'
+// NOTE: 'num' passed into FmtPercent is assumed to be in percent already
+func (cu *cu) FmtPercent(num float64, v uint64) string {
+	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
+	l := len(s) + 5
+	b := make([]byte, 0, l)
+
+	for i := len(s) - 1; i >= 0; i-- {
+
+		if s[i] == '.' {
+			b = append(b, cu.decimal[0])
+			continue
+		}
+
+		b = append(b, s[i])
+	}
+
+	if num < 0 {
+		b = append(b, cu.minus[0])
+	}
+
+	// reverse
+	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
+		b[i], b[j] = b[j], b[i]
+	}
+
+	b = append(b, cu.percentSuffix...)
+
+	b = append(b, cu.percent...)
+
+	return string(b)
+}
+
+// FmtCurrency returns the currency representation of 'num' with digits/precision of 'v' for 'cu'
+func (cu *cu) FmtCurrency(num float64, v uint64, currency currency.Type) string {
+
+	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
+	symbol := cu.currencies[currency]
+	l := len(s) + len(symbol) + 4 + 2*len(s[:len(s)-int(v)-1])/3
+	count := 0
+	inWhole := v == 0
+	b := make([]byte, 0, l)
+
+	for i := len(s) - 1; i >= 0; i-- {
+
+		if s[i] == '.' {
+			b = append(b, cu.decimal[0])
+			inWhole = true
+			continue
+		}
+
+		if inWhole {
+			if count == 3 {
+				for j := len(cu.group) - 1; j >= 0; j-- {
+					b = append(b, cu.group[j])
+				}
+				count = 1
+			} else {
+				count++
+			}
+		}
+
+		b = append(b, s[i])
+	}
+
+	if num < 0 {
+		b = append(b, cu.minus[0])
+	}
+
+	// reverse
+	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
+		b[i], b[j] = b[j], b[i]
+	}
+
+	if int(v) < 2 {
+
+		if v == 0 {
+			b = append(b, cu.decimal...)
+		}
+
+		for i := 0; i < 2-int(v); i++ {
+			b = append(b, '0')
+		}
+	}
+
+	b = append(b, cu.currencyPositiveSuffix...)
+
+	b = append(b, symbol...)
+
+	return string(b)
+}
+
+// FmtAccounting returns the currency representation of 'num' with digits/precision of 'v' for 'cu'
+// in accounting notation.
+func (cu *cu) FmtAccounting(num float64, v uint64, currency currency.Type) string {
+
+	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
+	symbol := cu.currencies[currency]
+	l := len(s) + len(symbol) + 4 + 2*len(s[:len(s)-int(v)-1])/3
+	count := 0
+	inWhole := v == 0
+	b := make([]byte, 0, l)
+
+	for i := len(s) - 1; i >= 0; i-- {
+
+		if s[i] == '.' {
+			b = append(b, cu.decimal[0])
+			inWhole = true
+			continue
+		}
+
+		if inWhole {
+			if count == 3 {
+				for j := len(cu.group) - 1; j >= 0; j-- {
+					b = append(b, cu.group[j])
+				}
+				count = 1
+			} else {
+				count++
+			}
+		}
+
+		b = append(b, s[i])
+	}
+
+	if num < 0 {
+
+		b = append(b, cu.minus[0])
+
+	}
+
+	// reverse
+	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
+		b[i], b[j] = b[j], b[i]
+	}
+
+	if int(v) < 2 {
+
+		if v == 0 {
+			b = append(b, cu.decimal...)
+		}
+
+		for i := 0; i < 2-int(v); i++ {
+			b = append(b, '0')
+		}
+	}
+
+	if num < 0 {
+		b = append(b, cu.currencyNegativeSuffix...)
+		b = append(b, symbol...)
+	} else {
+
+		b = append(b, cu.currencyPositiveSuffix...)
+		b = append(b, symbol...)
+	}
+
+	return string(b)
+}
+
+// FmtDateShort returns the short date representation of 't' for 'cu'
+func (cu *cu) FmtDateShort(t time.Time) string {
+
+	b := make([]byte, 0, 32)
+
+	if t.Year() > 0 {
+		b = strconv.AppendInt(b, int64(t.Year()), 10)
+	} else {
+		b = strconv.AppendInt(b, int64(-t.Year()), 10)
+	}
+
+	b = append(b, []byte{0x2e}...)
+
+	if t.Month() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Month()), 10)
+
+	b = append(b, []byte{0x2e}...)
+
+	if t.Day() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Day()), 10)
+
+	return string(b)
+}
+
+// FmtDateMedium returns the medium date representation of 't' for 'cu'
+func (cu *cu) FmtDateMedium(t time.Time) string {
+
+	b := make([]byte, 0, 32)
+
+	if t.Year() > 0 {
+		b = strconv.AppendInt(b, int64(t.Year()), 10)
+	} else {
+		b = strconv.AppendInt(b, int64(-t.Year()), 10)
+	}
+
+	b = append(b, []byte{0x20}...)
+	b = append(b, cu.monthsAbbreviated[t.Month()]...)
+	b = append(b, []byte{0x20}...)
+	b = strconv.AppendInt(b, int64(t.Day()), 10)
+
+	return string(b)
+}
+
+// FmtDateLong returns the long date representation of 't' for 'cu'
+func (cu *cu) FmtDateLong(t time.Time) string {
+
+	b := make([]byte, 0, 32)
+
+	if t.Year() > 0 {
+		b = strconv.AppendInt(b, int64(t.Year()), 10)
+	} else {
+		b = strconv.AppendInt(b, int64(-t.Year()), 10)
+	}
+
+	b = append(b, []byte{0x20}...)
+	b = append(b, cu.monthsWide[t.Month()]...)
+	b = append(b, []byte{0x20}...)
+	b = strconv.AppendInt(b, int64(t.Day()), 10)
+
+	return string(b)
+}
+
+// FmtDateFull returns the full date representation of 't' for 'cu'
+func (cu *cu) FmtDateFull(t time.Time) string {
+
+	b := make([]byte, 0, 32)
+
+	b = append(b, cu.daysWide[t.Weekday()]...)
+	b = append(b, []byte{0x2c, 0x20}...)
+	b = strconv.AppendInt(b, int64(t.Day()), 10)
+	b = append(b, []byte{0x20}...)
+	b = append(b, cu.monthsWide[t.Month()]...)
+	b = append(b, []byte{0x20, 0xd0, 0xbb}...)
+	b = append(b, []byte{0x2e, 0x20}...)
+
+	if t.Year() > 0 {
+		b = strconv.AppendInt(b, int64(t.Year()), 10)
+	} else {
+		b = strconv.AppendInt(b, int64(-t.Year()), 10)
+	}
+
+	b = append(b, []byte{0x2e}...)
+
+	return string(b)
+}
+
+// FmtTimeShort returns the short time representation of 't' for 'cu'
+func (cu *cu) FmtTimeShort(t time.Time) string {
+
+	b := make([]byte, 0, 32)
+
+	if t.Hour() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Hour()), 10)
+	b = append(b, cu.timeSeparator...)
+
+	if t.Minute() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Minute()), 10)
+
+	return string(b)
+}
+
+// FmtTimeMedium returns the medium time representation of 't' for 'cu'
+func (cu *cu) FmtTimeMedium(t time.Time) string {
+
+	b := make([]byte, 0, 32)
+
+	if t.Hour() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Hour()), 10)
+	b = append(b, cu.timeSeparator...)
+
+	if t.Minute() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Minute()), 10)
+	b = append(b, cu.timeSeparator...)
+
+	if t.Second() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Second()), 10)
+
+	return string(b)
+}
+
+// FmtTimeLong returns the long time representation of 't' for 'cu'
+func (cu *cu) FmtTimeLong(t time.Time) string {
+
+	b := make([]byte, 0, 32)
+
+	if t.Hour() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Hour()), 10)
+	b = append(b, cu.timeSeparator...)
+
+	if t.Minute() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Minute()), 10)
+	b = append(b, cu.timeSeparator...)
+
+	if t.Second() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Second()), 10)
+	b = append(b, []byte{0x20}...)
+
+	tz, _ := t.Zone()
+	b = append(b, tz...)
+
+	return string(b)
+}
+
+// FmtTimeFull returns the full time representation of 't' for 'cu'
+func (cu *cu) FmtTimeFull(t time.Time) string {
+
+	b := make([]byte, 0, 32)
+
+	if t.Hour() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Hour()), 10)
+	b = append(b, cu.timeSeparator...)
+
+	if t.Minute() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Minute()), 10)
+	b = append(b, cu.timeSeparator...)
+
+	if t.Second() < 10 {
+		b = append(b, '0')
+	}
+
+	b = strconv.AppendInt(b, int64(t.Second()), 10)
+	b = append(b, []byte{0x20}...)
+
+	tz, _ := t.Zone()
+
+	if btz, ok := cu.timezones[tz]; ok {
+		b = append(b, btz...)
+	} else {
+		b = append(b, tz...)
+	}
+
+	return string(b)
+}
diff --git a/vendor/github.com/go-playground/locales/cu/cu_test.go b/vendor/github.com/go-playground/locales/cu/cu_test.go
new file mode 100644
index 0000000..91c734a
--- /dev/null
+++ b/vendor/github.com/go-playground/locales/cu/cu_test.go
@@ -0,0 +1,1120 @@
+package cu
+
+import (
+	"testing"
+	"time"
+
+	"github.com/go-playground/locales"
+	"github.com/go-playground/locales/currency"
+)
+
+func TestLocale(t *testing.T) {
+
+	trans := New()
+	expected := "cu"
+
+	if trans.Locale() != expected {
+		t.Errorf("Expected '%s' Got '%s'", expected, trans.Locale())
+	}
+}
+
+func TestPluralsRange(t *testing.T) {
+
+	trans := New()
+
+	tests := []struct {
+		expected locales.PluralRule
+	}{
+	// {
+	// 	expected: locales.PluralRuleOther,
+	// },
+	}
+
+	rules := trans.PluralsRange()
+	// expected := 1
+	// if len(rules) != expected {
+	// 	t.Errorf("Expected '%d' Got '%d'", expected, len(rules))
+	// }
+
+	for _, tt := range tests {
+
+		r := locales.PluralRuleUnknown
+
+		for i := 0; i < len(rules); i++ {
+			if rules[i] == tt.expected {
+				r = rules[i]
+				break
+			}
+		}
+		if r == locales.PluralRuleUnknown {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, r)
+		}
+	}
+}
+
+func TestPluralsOrdinal(t *testing.T) {
+
+	trans := New()
+
+	tests := []struct {
+		expected locales.PluralRule
+	}{
+	// {
+	// 	expected: locales.PluralRuleOne,
+	// },
+	// {
+	// 	expected: locales.PluralRuleTwo,
+	// },
+	// {
+	// 	expected: locales.PluralRuleFew,
+	// },
+	// {
+	// 	expected: locales.PluralRuleOther,
+	// },
+	}
+
+	rules := trans.PluralsOrdinal()
+	// expected := 4
+	// if len(rules) != expected {
+	// 	t.Errorf("Expected '%d' Got '%d'", expected, len(rules))
+	// }
+
+	for _, tt := range tests {
+
+		r := locales.PluralRuleUnknown
+
+		for i := 0; i < len(rules); i++ {
+			if rules[i] == tt.expected {
+				r = rules[i]
+				break
+			}
+		}
+		if r == locales.PluralRuleUnknown {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, r)
+		}
+	}
+}
+
+func TestPluralsCardinal(t *testing.T) {
+
+	trans := New()
+
+	tests := []struct {
+		expected locales.PluralRule
+	}{
+	// {
+	// 	expected: locales.PluralRuleOne,
+	// },
+	// {
+	// 	expected: locales.PluralRuleOther,
+	// },
+	}
+
+	rules := trans.PluralsCardinal()
+	// expected := 2
+	// if len(rules) != expected {
+	// 	t.Errorf("Expected '%d' Got '%d'", expected, len(rules))
+	// }
+
+	for _, tt := range tests {
+
+		r := locales.PluralRuleUnknown
+
+		for i := 0; i < len(rules); i++ {
+			if rules[i] == tt.expected {
+				r = rules[i]
+				break
+			}
+		}
+		if r == locales.PluralRuleUnknown {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, r)
+		}
+	}
+}
+
+func TestRangePlurals(t *testing.T) {
+
+	trans := New()
+
+	tests := []struct {
+		num1     float64
+		v1       uint64
+		num2     float64
+		v2       uint64
+		expected locales.PluralRule
+	}{
+	// {
+	// 	num1:     1,
+	// 	v1:       1,
+	// 	num2:     2,
+	// 	v2:       2,
+	// 	expected: locales.PluralRuleOther,
+	// },
+	}
+
+	for _, tt := range tests {
+		rule := trans.RangePluralRule(tt.num1, tt.v1, tt.num2, tt.v2)
+		if rule != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, rule)
+		}
+	}
+}
+
+func TestOrdinalPlurals(t *testing.T) {
+
+	trans := New()
+
+	tests := []struct {
+		num      float64
+		v        uint64
+		expected locales.PluralRule
+	}{
+	// {
+	// 	num:      1,
+	// 	v:        0,
+	// 	expected: locales.PluralRuleOne,
+	// },
+	// {
+	// 	num:      2,
+	// 	v:        0,
+	// 	expected: locales.PluralRuleTwo,
+	// },
+	// {
+	// 	num:      3,
+	// 	v:        0,
+	// 	expected: locales.PluralRuleFew,
+	// },
+	// {
+	// 	num:      4,
+	// 	v:        0,
+	// 	expected: locales.PluralRuleOther,
+	// },
+	}
+
+	for _, tt := range tests {
+		rule := trans.OrdinalPluralRule(tt.num, tt.v)
+		if rule != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, rule)
+		}
+	}
+}
+
+func TestCardinalPlurals(t *testing.T) {
+
+	trans := New()
+
+	tests := []struct {
+		num      float64
+		v        uint64
+		expected locales.PluralRule
+	}{
+	// {
+	// 	num:      1,
+	// 	v:        0,
+	// 	expected: locales.PluralRuleOne,
+	// },
+	// {
+	// 	num:      4,
+	// 	v:        0,
+	// 	expected: locales.PluralRuleOther,
+	// },
+	}
+
+	for _, tt := range tests {
+		rule := trans.CardinalPluralRule(tt.num, tt.v)
+		if rule != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, rule)
+		}
+	}
+}
+
+func TestDaysAbbreviated(t *testing.T) {
+
+	trans := New()
+	days := trans.WeekdaysAbbreviated()
+
+	for i, day := range days {
+		s := trans.WeekdayAbbreviated(time.Weekday(i))
+		if s != day {
+			t.Errorf("Expected '%s' Got '%s'", day, s)
+		}
+	}
+
+	tests := []struct {
+		idx      int
+		expected string
+	}{
+	// {
+	// 	idx:      0,
+	// 	expected: "Sun",
+	// },
+	// {
+	// 	idx:      1,
+	// 	expected: "Mon",
+	// },
+	// {
+	// 	idx:      2,
+	// 	expected: "Tue",
+	// },
+	// {
+	// 	idx:      3,
+	// 	expected: "Wed",
+	// },
+	// {
+	// 	idx:      4,
+	// 	expected: "Thu",
+	// },
+	// {
+	// 	idx:      5,
+	// 	expected: "Fri",
+	// },
+	// {
+	// 	idx:      6,
+	// 	expected: "Sat",
+	// },
+	}
+
+	for _, tt := range tests {
+		s := trans.WeekdayAbbreviated(time.Weekday(tt.idx))
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestDaysNarrow(t *testing.T) {
+
+	trans := New()
+	days := trans.WeekdaysNarrow()
+
+	for i, day := range days {
+		s := trans.WeekdayNarrow(time.Weekday(i))
+		if s != day {
+			t.Errorf("Expected '%s' Got '%s'", string(day), s)
+		}
+	}
+
+	tests := []struct {
+		idx      int
+		expected string
+	}{
+	// {
+	// 	idx:      0,
+	// 	expected: "S",
+	// },
+	// {
+	// 	idx:      1,
+	// 	expected: "M",
+	// },
+	// {
+	// 	idx:      2,
+	// 	expected: "T",
+	// },
+	// {
+	// 	idx:      3,
+	// 	expected: "W",
+	// },
+	// {
+	// 	idx:      4,
+	// 	expected: "T",
+	// },
+	// {
+	// 	idx:      5,
+	// 	expected: "F",
+	// },
+	// {
+	// 	idx:      6,
+	// 	expected: "S",
+	// },
+	}
+
+	for _, tt := range tests {
+		s := trans.WeekdayNarrow(time.Weekday(tt.idx))
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestDaysShort(t *testing.T) {
+
+	trans := New()
+	days := trans.WeekdaysShort()
+
+	for i, day := range days {
+		s := trans.WeekdayShort(time.Weekday(i))
+		if s != day {
+			t.Errorf("Expected '%s' Got '%s'", day, s)
+		}
+	}
+
+	tests := []struct {
+		idx      int
+		expected string
+	}{
+	// {
+	// 	idx:      0,
+	// 	expected: "Su",
+	// },
+	// {
+	// 	idx:      1,
+	// 	expected: "Mo",
+	// },
+	// {
+	// 	idx:      2,
+	// 	expected: "Tu",
+	// },
+	// {
+	// 	idx:      3,
+	// 	expected: "We",
+	// },
+	// {
+	// 	idx:      4,
+	// 	expected: "Th",
+	// },
+	// {
+	// 	idx:      5,
+	// 	expected: "Fr",
+	// },
+	// {
+	// 	idx:      6,
+	// 	expected: "Sa",
+	// },
+	}
+
+	for _, tt := range tests {
+		s := trans.WeekdayShort(time.Weekday(tt.idx))
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestDaysWide(t *testing.T) {
+
+	trans := New()
+	days := trans.WeekdaysWide()
+
+	for i, day := range days {
+		s := trans.WeekdayWide(time.Weekday(i))
+		if s != day {
+			t.Errorf("Expected '%s' Got '%s'", day, s)
+		}
+	}
+
+	tests := []struct {
+		idx      int
+		expected string
+	}{
+	// {
+	// 	idx:      0,
+	// 	expected: "Sunday",
+	// },
+	// {
+	// 	idx:      1,
+	// 	expected: "Monday",
+	// },
+	// {
+	// 	idx:      2,
+	// 	expected: "Tuesday",
+	// },
+	// {
+	// 	idx:      3,
+	// 	expected: "Wednesday",
+	// },
+	// {
+	// 	idx:      4,
+	// 	expected: "Thursday",
+	// },
+	// {
+	// 	idx:      5,
+	// 	expected: "Friday",
+	// },
+	// {
+	// 	idx:      6,
+	// 	expected: "Saturday",
+	// },
+	}
+
+	for _, tt := range tests {
+		s := trans.WeekdayWide(time.Weekday(tt.idx))
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestMonthsAbbreviated(t *testing.T) {
+
+	trans := New()
+	months := trans.MonthsAbbreviated()
+
+	for i, month := range months {
+		s := trans.MonthAbbreviated(time.Month(i + 1))
+		if s != month {
+			t.Errorf("Expected '%s' Got '%s'", month, s)
+		}
+	}
+
+	tests := []struct {
+		idx      int
+		expected string
+	}{
+	// {
+	// 	idx:      1,
+	// 	expected: "Jan",
+	// },
+	// {
+	// 	idx:      2,
+	// 	expected: "Feb",
+	// },
+	// {
+	// 	idx:      3,
+	// 	expected: "Mar",
+	// },
+	// {
+	// 	idx:      4,
+	// 	expected: "Apr",
+	// },
+	// {
+	// 	idx:      5,
+	// 	expected: "May",
+	// },
+	// {
+	// 	idx:      6,
+	// 	expected: "Jun",
+	// },
+	// {
+	// 	idx:      7,
+	// 	expected: "Jul",
+	// },
+	// {
+	// 	idx:      8,
+	// 	expected: "Aug",
+	// },
+	// {
+	// 	idx:      9,
+	// 	expected: "Sep",
+	// },
+	// {
+	// 	idx:      10,
+	// 	expected: "Oct",
+	// },
+	// {
+	// 	idx:      11,
+	// 	expected: "Nov",
+	// },
+	// {
+	// 	idx:      12,
+	// 	expected: "Dec",
+	// },
+	}
+
+	for _, tt := range tests {
+		s := trans.MonthAbbreviated(time.Month(tt.idx))
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestMonthsNarrow(t *testing.T) {
+
+	trans := New()
+	months := trans.MonthsNarrow()
+
+	for i, month := range months {
+		s := trans.MonthNarrow(time.Month(i + 1))
+		if s != month {
+			t.Errorf("Expected '%s' Got '%s'", month, s)
+		}
+	}
+
+	tests := []struct {
+		idx      int
+		expected string
+	}{
+	// {
+	// 	idx:      1,
+	// 	expected: "J",
+	// },
+	// {
+	// 	idx:      2,
+	// 	expected: "F",
+	// },
+	// {
+	// 	idx:      3,
+	// 	expected: "M",
+	// },
+	// {
+	// 	idx:      4,
+	// 	expected: "A",
+	// },
+	// {
+	// 	idx:      5,
+	// 	expected: "M",
+	// },
+	// {
+	// 	idx:      6,
+	// 	expected: "J",
+	// },
+	// {
+	// 	idx:      7,
+	// 	expected: "J",
+	// },
+	// {
+	// 	idx:      8,
+	// 	expected: "A",
+	// },
+	// {
+	// 	idx:      9,
+	// 	expected: "S",
+	// },
+	// {
+	// 	idx:      10,
+	// 	expected: "O",
+	// },
+	// {
+	// 	idx:      11,
+	// 	expected: "N",
+	// },
+	// {
+	// 	idx:      12,
+	// 	expected: "D",
+	// },
+	}
+
+	for _, tt := range tests {
+		s := trans.MonthNarrow(time.Month(tt.idx))
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestMonthsWide(t *testing.T) {
+
+	trans := New()
+	months := trans.MonthsWide()
+
+	for i, month := range months {
+		s := trans.MonthWide(time.Month(i + 1))
+		if s != month {
+			t.Errorf("Expected '%s' Got '%s'", month, s)
+		}
+	}
+
+	tests := []struct {
+		idx      int
+		expected string
+	}{
+	// {
+	// 	idx:      1,
+	// 	expected: "January",
+	// },
+	// {
+	// 	idx:      2,
+	// 	expected: "February",
+	// },
+	// {
+	// 	idx:      3,
+	// 	expected: "March",
+	// },
+	// {
+	// 	idx:      4,
+	// 	expected: "April",
+	// },
+	// {
+	// 	idx:      5,
+	// 	expected: "May",
+	// },
+	// {
+	// 	idx:      6,
+	// 	expected: "June",
+	// },
+	// {
+	// 	idx:      7,
+	// 	expected: "July",
+	// },
+	// {
+	// 	idx:      8,
+	// 	expected: "August",
+	// },
+	// {
+	// 	idx:      9,
+	// 	expected: "September",
+	// },
+	// {
+	// 	idx:      10,
+	// 	expected: "October",
+	// },
+	// {
+	// 	idx:      11,
+	// 	expected: "November",
+	// },
+	// {
+	// 	idx:      12,
+	// 	expected: "December",
+	// },
+	}
+
+	for _, tt := range tests {
+		s := string(trans.MonthWide(time.Month(tt.idx)))
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtTimeFull(t *testing.T) {
+
+	// loc, err := time.LoadLocation("America/Toronto")
+	// if err != nil {
+	// 	t.Errorf("Expected '<nil>' Got '%s'", err)
+	// }
+
+	// fixed := time.FixedZone("OTHER", -4)
+
+	tests := []struct {
+		t        time.Time
+		expected string
+	}{
+	// {
+	// 	t:        time.Date(2016, 02, 03, 9, 5, 1, 0, loc),
+	// 	expected: "9:05:01 am Eastern Standard Time",
+	// },
+	// {
+	// 	t:        time.Date(2016, 02, 03, 20, 5, 1, 0, fixed),
+	// 	expected: "8:05:01 pm OTHER",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtTimeFull(tt.t)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtTimeLong(t *testing.T) {
+
+	// loc, err := time.LoadLocation("America/Toronto")
+	// if err != nil {
+	// 	t.Errorf("Expected '<nil>' Got '%s'", err)
+	// }
+
+	tests := []struct {
+		t        time.Time
+		expected string
+	}{
+	// {
+	// 	t:        time.Date(2016, 02, 03, 9, 5, 1, 0, loc),
+	// 	expected: "9:05:01 am EST",
+	// },
+	// {
+	// 	t:        time.Date(2016, 02, 03, 20, 5, 1, 0, loc),
+	// 	expected: "8:05:01 pm EST",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtTimeLong(tt.t)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtTimeMedium(t *testing.T) {
+
+	tests := []struct {
+		t        time.Time
+		expected string
+	}{
+	// {
+	// 	t:        time.Date(2016, 02, 03, 9, 5, 1, 0, time.UTC),
+	// 	expected: "9:05:01 am",
+	// },
+	// {
+	// 	t:        time.Date(2016, 02, 03, 20, 5, 1, 0, time.UTC),
+	// 	expected: "8:05:01 pm",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtTimeMedium(tt.t)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtTimeShort(t *testing.T) {
+
+	tests := []struct {
+		t        time.Time
+		expected string
+	}{
+	// {
+	// 	t:        time.Date(2016, 02, 03, 9, 5, 1, 0, time.UTC),
+	// 	expected: "9:05 am",
+	// },
+	// {
+	// 	t:        time.Date(2016, 02, 03, 20, 5, 1, 0, time.UTC),
+	// 	expected: "8:05 pm",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtTimeShort(tt.t)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtDateFull(t *testing.T) {
+
+	tests := []struct {
+		t        time.Time
+		expected string
+	}{
+	// {
+	// 	t:        time.Date(2016, 02, 03, 9, 0, 1, 0, time.UTC),
+	// 	expected: "Wednesday, February 3, 2016",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtDateFull(tt.t)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtDateLong(t *testing.T) {
+
+	tests := []struct {
+		t        time.Time
+		expected string
+	}{
+	// {
+	// 	t:        time.Date(2016, 02, 03, 9, 0, 1, 0, time.UTC),
+	// 	expected: "February 3, 2016",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtDateLong(tt.t)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtDateMedium(t *testing.T) {
+
+	tests := []struct {
+		t        time.Time
+		expected string
+	}{
+	// {
+	// 	t:        time.Date(2016, 02, 03, 9, 0, 1, 0, time.UTC),
+	// 	expected: "Feb 3, 2016",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtDateMedium(tt.t)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtDateShort(t *testing.T) {
+
+	tests := []struct {
+		t        time.Time
+		expected string
+	}{
+	// {
+	// 	t:        time.Date(2016, 02, 03, 9, 0, 1, 0, time.UTC),
+	// 	expected: "2/3/16",
+	// },
+	// {
+	// 	t:        time.Date(-500, 02, 03, 9, 0, 1, 0, time.UTC),
+	// 	expected: "2/3/500",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtDateShort(tt.t)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtNumber(t *testing.T) {
+
+	tests := []struct {
+		num      float64
+		v        uint64
+		expected string
+	}{
+	// {
+	// 	num:      1123456.5643,
+	// 	v:        2,
+	// 	expected: "1,123,456.56",
+	// },
+	// {
+	// 	num:      1123456.5643,
+	// 	v:        1,
+	// 	expected: "1,123,456.6",
+	// },
+	// {
+	// 	num:      221123456.5643,
+	// 	v:        3,
+	// 	expected: "221,123,456.564",
+	// },
+	// {
+	// 	num:      -221123456.5643,
+	// 	v:        3,
+	// 	expected: "-221,123,456.564",
+	// },
+	// {
+	// 	num:      -221123456.5643,
+	// 	v:        3,
+	// 	expected: "-221,123,456.564",
+	// },
+	// {
+	// 	num:      0,
+	// 	v:        2,
+	// 	expected: "0.00",
+	// },
+	// {
+	// 	num:      -0,
+	// 	v:        2,
+	// 	expected: "0.00",
+	// },
+	// {
+	// 	num:      -0,
+	// 	v:        2,
+	// 	expected: "0.00",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtNumber(tt.num, tt.v)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtCurrency(t *testing.T) {
+
+	tests := []struct {
+		num      float64
+		v        uint64
+		currency currency.Type
+		expected string
+	}{
+	// {
+	// 	num:      1123456.5643,
+	// 	v:        2,
+	// 	currency: currency.USD,
+	// 	expected: "$1,123,456.56",
+	// },
+	// {
+	// 	num:      1123456.5643,
+	// 	v:        1,
+	// 	currency: currency.USD,
+	// 	expected: "$1,123,456.60",
+	// },
+	// {
+	// 	num:      221123456.5643,
+	// 	v:        3,
+	// 	currency: currency.USD,
+	// 	expected: "$221,123,456.564",
+	// },
+	// {
+	// 	num:      -221123456.5643,
+	// 	v:        3,
+	// 	currency: currency.USD,
+	// 	expected: "-$221,123,456.564",
+	// },
+	// {
+	// 	num:      -221123456.5643,
+	// 	v:        3,
+	// 	currency: currency.CAD,
+	// 	expected: "-CAD 221,123,456.564",
+	// },
+	// {
+	// 	num:      0,
+	// 	v:        2,
+	// 	currency: currency.USD,
+	// 	expected: "$0.00",
+	// },
+	// {
+	// 	num:      -0,
+	// 	v:        2,
+	// 	currency: currency.USD,
+	// 	expected: "$0.00",
+	// },
+	// {
+	// 	num:      -0,
+	// 	v:        2,
+	// 	currency: currency.CAD,
+	// 	expected: "CAD 0.00",
+	// },
+	// {
+	// 	num:      1.23,
+	// 	v:        0,
+	// 	currency: currency.USD,
+	// 	expected: "$1.00",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtCurrency(tt.num, tt.v, tt.currency)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtAccounting(t *testing.T) {
+
+	tests := []struct {
+		num      float64
+		v        uint64
+		currency currency.Type
+		expected string
+	}{
+	// {
+	// 	num:      1123456.5643,
+	// 	v:        2,
+	// 	currency: currency.USD,
+	// 	expected: "$1,123,456.56",
+	// },
+	// {
+	// 	num:      1123456.5643,
+	// 	v:        1,
+	// 	currency: currency.USD,
+	// 	expected: "$1,123,456.60",
+	// },
+	// {
+	// 	num:      221123456.5643,
+	// 	v:        3,
+	// 	currency: currency.USD,
+	// 	expected: "$221,123,456.564",
+	// },
+	// {
+	// 	num:      -221123456.5643,
+	// 	v:        3,
+	// 	currency: currency.USD,
+	// 	expected: "($221,123,456.564)",
+	// },
+	// {
+	// 	num:      -221123456.5643,
+	// 	v:        3,
+	// 	currency: currency.CAD,
+	// 	expected: "(CAD 221,123,456.564)",
+	// },
+	// {
+	// 	num:      -0,
+	// 	v:        2,
+	// 	currency: currency.USD,
+	// 	expected: "$0.00",
+	// },
+	// {
+	// 	num:      -0,
+	// 	v:        2,
+	// 	currency: currency.CAD,
+	// 	expected: "CAD 0.00",
+	// },
+	// {
+	// 	num:      1.23,
+	// 	v:        0,
+	// 	currency: currency.USD,
+	// 	expected: "$1.00",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtAccounting(tt.num, tt.v, tt.currency)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFmtPercent(t *testing.T) {
+
+	tests := []struct {
+		num      float64
+		v        uint64
+		expected string
+	}{
+	// {
+	// 	num:      15,
+	// 	v:        0,
+	// 	expected: "15%",
+	// },
+	// {
+	// 	num:      15,
+	// 	v:        2,
+	// 	expected: "15.00%",
+	// },
+	// {
+	// 	num:      434.45,
+	// 	v:        0,
+	// 	expected: "434%",
+	// },
+	// {
+	// 	num:      34.4,
+	// 	v:        2,
+	// 	expected: "34.40%",
+	// },
+	// {
+	// 	num:      -34,
+	// 	v:        0,
+	// 	expected: "-34%",
+	// },
+	}
+
+	trans := New()
+
+	for _, tt := range tests {
+		s := trans.FmtPercent(tt.num, tt.v)
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
diff --git a/vendor/github.com/go-playground/locales/currency/currency.go b/vendor/github.com/go-playground/locales/currency/currency.go
new file mode 100644
index 0000000..6e75ec5
--- /dev/null
+++ b/vendor/github.com/go-playground/locales/currency/currency.go
@@ -0,0 +1,306 @@
+package currency
+
+// Type is the currency type associated with the locales currency enum
+type Type int
+
+// locale currencies
+const (
+	ADP Type = iota
+	AED
+	AFA
+	AFN
+	ALK
+	ALL
+	AMD
+	ANG
+	AOA
+	AOK
+	AON
+	AOR
+	ARA
+	ARL
+	ARM
+	ARP
+	ARS
+	ATS
+	AUD
+	AWG
+	AZM
+	AZN
+	BAD
+	BAM
+	BAN
+	BBD
+	BDT
+	BEC
+	BEF
+	BEL
+	BGL
+	BGM
+	BGN
+	BGO
+	BHD
+	BIF
+	BMD
+	BND
+	BOB
+	BOL
+	BOP
+	BOV
+	BRB
+	BRC
+	BRE
+	BRL
+	BRN
+	BRR
+	BRZ
+	BSD
+	BTN
+	BUK
+	BWP
+	BYB
+	BYN
+	BYR
+	BZD
+	CAD
+	CDF
+	CHE
+	CHF
+	CHW
+	CLE
+	CLF
+	CLP
+	CNX
+	CNY
+	COP
+	COU
+	CRC
+	CSD
+	CSK
+	CUC
+	CUP
+	CVE
+	CYP
+	CZK
+	DDM
+	DEM
+	DJF
+	DKK
+	DOP
+	DZD
+	ECS
+	ECV
+	EEK
+	EGP
+	ERN
+	ESA
+	ESB
+	ESP
+	ETB
+	EUR
+	FIM
+	FJD
+	FKP
+	FRF
+	GBP
+	GEK
+	GEL
+	GHC
+	GHS
+	GIP
+	GMD
+	GNF
+	GNS
+	GQE
+	GRD
+	GTQ
+	GWE
+	GWP
+	GYD
+	HKD
+	HNL
+	HRD
+	HRK
+	HTG
+	HUF
+	IDR
+	IEP
+	ILP
+	ILR
+	ILS
+	INR
+	IQD
+	IRR
+	ISJ
+	ISK
+	ITL
+	JMD
+	JOD
+	JPY
+	KES
+	KGS
+	KHR
+	KMF
+	KPW
+	KRH
+	KRO
+	KRW
+	KWD
+	KYD
+	KZT
+	LAK
+	LBP
+	LKR
+	LRD
+	LSL
+	LTL
+	LTT
+	LUC
+	LUF
+	LUL
+	LVL
+	LVR
+	LYD
+	MAD
+	MAF
+	MCF
+	MDC
+	MDL
+	MGA
+	MGF
+	MKD
+	MKN
+	MLF
+	MMK
+	MNT
+	MOP
+	MRO
+	MTL
+	MTP
+	MUR
+	MVP
+	MVR
+	MWK
+	MXN
+	MXP
+	MXV
+	MYR
+	MZE
+	MZM
+	MZN
+	NAD
+	NGN
+	NIC
+	NIO
+	NLG
+	NOK
+	NPR
+	NZD
+	OMR
+	PAB
+	PEI
+	PEN
+	PES
+	PGK
+	PHP
+	PKR
+	PLN
+	PLZ
+	PTE
+	PYG
+	QAR
+	RHD
+	ROL
+	RON
+	RSD
+	RUB
+	RUR
+	RWF
+	SAR
+	SBD
+	SCR
+	SDD
+	SDG
+	SDP
+	SEK
+	SGD
+	SHP
+	SIT
+	SKK
+	SLL
+	SOS
+	SRD
+	SRG
+	SSP
+	STD
+	SUR
+	SVC
+	SYP
+	SZL
+	THB
+	TJR
+	TJS
+	TMM
+	TMT
+	TND
+	TOP
+	TPE
+	TRL
+	TRY
+	TTD
+	TWD
+	TZS
+	UAH
+	UAK
+	UGS
+	UGX
+	USD
+	USN
+	USS
+	UYI
+	UYP
+	UYU
+	UZS
+	VEB
+	VEF
+	VND
+	VNN
+	VUV
+	WST
+	XAF
+	XAG
+	XAU
+	XBA
+	XBB
+	XBC
+	XBD
+	XCD
+	XDR
+	XEU
+	XFO
+	XFU
+	XOF
+	XPD
+	XPF
+	XPT
+	XRE
+	XSU
+	XTS
+	XUA
+	XXX
+	YDD
+	YER
+	YUD
+	YUM
+	YUN
+	YUR
+	ZAL
+	ZAR
+	ZMK
+	ZMW
+	ZRN
+	ZRZ
+	ZWD
+	ZWL
+	ZWR
+)
diff --git a/vendor/github.com/go-playground/locales/logo.png b/vendor/github.com/go-playground/locales/logo.png
new file mode 100644
index 0000000..3038276
--- /dev/null
+++ b/vendor/github.com/go-playground/locales/logo.png
diff --git a/vendor/github.com/go-playground/locales/rules.go b/vendor/github.com/go-playground/locales/rules.go
new file mode 100644
index 0000000..9202900
--- /dev/null
+++ b/vendor/github.com/go-playground/locales/rules.go
@@ -0,0 +1,293 @@
+package locales
+
+import (
+	"strconv"
+	"time"
+
+	"github.com/go-playground/locales/currency"
+)
+
+// // ErrBadNumberValue is returned when the number passed for
+// // plural rule determination cannot be parsed
+// type ErrBadNumberValue struct {
+// 	NumberValue string
+// 	InnerError  error
+// }
+
+// // Error returns ErrBadNumberValue error string
+// func (e *ErrBadNumberValue) Error() string {
+// 	return fmt.Sprintf("Invalid Number Value '%s' %s", e.NumberValue, e.InnerError)
+// }
+
+// var _ error = new(ErrBadNumberValue)
+
+// PluralRule denotes the type of plural rules
+type PluralRule int
+
+// PluralRule's
+const (
+	PluralRuleUnknown PluralRule = iota
+	PluralRuleZero               // zero
+	PluralRuleOne                // one - singular
+	PluralRuleTwo                // two - dual
+	PluralRuleFew                // few - paucal
+	PluralRuleMany               // many - also used for fractions if they have a separate class
+	PluralRuleOther              // other - required—general plural form—also used if the language only has a single form
+)
+
+const (
+	pluralsString = "UnknownZeroOneTwoFewManyOther"
+)
+
+// Translator encapsulates an instance of a locale
+// NOTE: some values are returned as a []byte just in case the caller
+// wishes to add more and can help avoid allocations; otherwise just cast as string
+type Translator interface {
+
+	// The following Functions are for overriding, debugging or developing
+	// with a Translator Locale
+
+	// Locale returns the string value of the translator
+	Locale() string
+
+	// returns an array of cardinal plural rules associated
+	// with this translator
+	PluralsCardinal() []PluralRule
+
+	// returns an array of ordinal plural rules associated
+	// with this translator
+	PluralsOrdinal() []PluralRule
+
+	// returns an array of range plural rules associated
+	// with this translator
+	PluralsRange() []PluralRule
+
+	// returns the cardinal PluralRule given 'num' and digits/precision of 'v' for locale
+	CardinalPluralRule(num float64, v uint64) PluralRule
+
+	// returns the ordinal PluralRule given 'num' and digits/precision of 'v' for locale
+	OrdinalPluralRule(num float64, v uint64) PluralRule
+
+	// returns the ordinal PluralRule given 'num1', 'num2' and digits/precision of 'v1' and 'v2' for locale
+	RangePluralRule(num1 float64, v1 uint64, num2 float64, v2 uint64) PluralRule
+
+	// returns the locales abbreviated month given the 'month' provided
+	MonthAbbreviated(month time.Month) string
+
+	// returns the locales abbreviated months
+	MonthsAbbreviated() []string
+
+	// returns the locales narrow month given the 'month' provided
+	MonthNarrow(month time.Month) string
+
+	// returns the locales narrow months
+	MonthsNarrow() []string
+
+	// returns the locales wide month given the 'month' provided
+	MonthWide(month time.Month) string
+
+	// returns the locales wide months
+	MonthsWide() []string
+
+	// returns the locales abbreviated weekday given the 'weekday' provided
+	WeekdayAbbreviated(weekday time.Weekday) string
+
+	// returns the locales abbreviated weekdays
+	WeekdaysAbbreviated() []string
+
+	// returns the locales narrow weekday given the 'weekday' provided
+	WeekdayNarrow(weekday time.Weekday) string
+
+	// WeekdaysNarrowreturns the locales narrow weekdays
+	WeekdaysNarrow() []string
+
+	// returns the locales short weekday given the 'weekday' provided
+	WeekdayShort(weekday time.Weekday) string
+
+	// returns the locales short weekdays
+	WeekdaysShort() []string
+
+	// returns the locales wide weekday given the 'weekday' provided
+	WeekdayWide(weekday time.Weekday) string
+
+	// returns the locales wide weekdays
+	WeekdaysWide() []string
+
+	// The following Functions are common Formatting functionsfor the Translator's Locale
+
+	// returns 'num' with digits/precision of 'v' for locale and handles both Whole and Real numbers based on 'v'
+	FmtNumber(num float64, v uint64) string
+
+	// returns 'num' with digits/precision of 'v' for locale and handles both Whole and Real numbers based on 'v'
+	// NOTE: 'num' passed into FmtPercent is assumed to be in percent already
+	FmtPercent(num float64, v uint64) string
+
+	// returns the currency representation of 'num' with digits/precision of 'v' for locale
+	FmtCurrency(num float64, v uint64, currency currency.Type) string
+
+	// returns the currency representation of 'num' with digits/precision of 'v' for locale
+	// in accounting notation.
+	FmtAccounting(num float64, v uint64, currency currency.Type) string
+
+	// returns the short date representation of 't' for locale
+	FmtDateShort(t time.Time) string
+
+	// returns the medium date representation of 't' for locale
+	FmtDateMedium(t time.Time) string
+
+	//  returns the long date representation of 't' for locale
+	FmtDateLong(t time.Time) string
+
+	// returns the full date representation of 't' for locale
+	FmtDateFull(t time.Time) string
+
+	// returns the short time representation of 't' for locale
+	FmtTimeShort(t time.Time) string
+
+	// returns the medium time representation of 't' for locale
+	FmtTimeMedium(t time.Time) string
+
+	// returns the long time representation of 't' for locale
+	FmtTimeLong(t time.Time) string
+
+	// returns the full time representation of 't' for locale
+	FmtTimeFull(t time.Time) string
+}
+
+// String returns the string value  of PluralRule
+func (p PluralRule) String() string {
+
+	switch p {
+	case PluralRuleZero:
+		return pluralsString[7:11]
+	case PluralRuleOne:
+		return pluralsString[11:14]
+	case PluralRuleTwo:
+		return pluralsString[14:17]
+	case PluralRuleFew:
+		return pluralsString[17:20]
+	case PluralRuleMany:
+		return pluralsString[20:24]
+	case PluralRuleOther:
+		return pluralsString[24:]
+	default:
+		return pluralsString[:7]
+	}
+}
+
+//
+// Precision Notes:
+//
+// must specify a precision >= 0, and here is why https://play.golang.org/p/LyL90U0Vyh
+//
+// 	v := float64(3.141)
+// 	i := float64(int64(v))
+//
+// 	fmt.Println(v - i)
+//
+// 	or
+//
+// 	s := strconv.FormatFloat(v-i, 'f', -1, 64)
+// 	fmt.Println(s)
+//
+// these will not print what you'd expect: 0.14100000000000001
+// and so this library requires a precision to be specified, or
+// inaccurate plural rules could be applied.
+//
+//
+//
+// n - absolute value of the source number (integer and decimals).
+// i - integer digits of n.
+// v - number of visible fraction digits in n, with trailing zeros.
+// w - number of visible fraction digits in n, without trailing zeros.
+// f - visible fractional digits in n, with trailing zeros.
+// t - visible fractional digits in n, without trailing zeros.
+//
+//
+// Func(num float64, v uint64) // v = digits/precision and prevents -1 as a special case as this can lead to very unexpected behaviour, see precision note's above.
+//
+// n := math.Abs(num)
+// i := int64(n)
+// v := v
+//
+//
+// w := strconv.FormatFloat(num-float64(i), 'f', int(v), 64)  // then parse backwards on string until no more zero's....
+// f := strconv.FormatFloat(n, 'f', int(v), 64) 			  // then turn everything after decimal into an int64
+// t := strconv.FormatFloat(n, 'f', int(v), 64) 			  // then parse backwards on string until no more zero's....
+//
+//
+//
+// General Inclusion Rules
+// - v will always be available inherently
+// - all require n
+// - w requires i
+//
+
+// W returns the number of visible fraction digits in N, without trailing zeros.
+func W(n float64, v uint64) (w int64) {
+
+	s := strconv.FormatFloat(n-float64(int64(n)), 'f', int(v), 64)
+
+	// with either be '0' or '0.xxxx', so if 1 then w will be zero
+	// otherwise need to parse
+	if len(s) != 1 {
+
+		s = s[2:]
+		end := len(s) + 1
+
+		for i := end; i >= 0; i-- {
+			if s[i] != '0' {
+				end = i + 1
+				break
+			}
+		}
+
+		w = int64(len(s[:end]))
+	}
+
+	return
+}
+
+// F returns the visible fractional digits in N, with trailing zeros.
+func F(n float64, v uint64) (f int64) {
+
+	s := strconv.FormatFloat(n-float64(int64(n)), 'f', int(v), 64)
+
+	// with either be '0' or '0.xxxx', so if 1 then f will be zero
+	// otherwise need to parse
+	if len(s) != 1 {
+
+		// ignoring error, because it can't fail as we generated
+		// the string internally from a real number
+		f, _ = strconv.ParseInt(s[2:], 10, 64)
+	}
+
+	return
+}
+
+// T returns the visible fractional digits in N, without trailing zeros.
+func T(n float64, v uint64) (t int64) {
+
+	s := strconv.FormatFloat(n-float64(int64(n)), 'f', int(v), 64)
+
+	// with either be '0' or '0.xxxx', so if 1 then t will be zero
+	// otherwise need to parse
+	if len(s) != 1 {
+
+		s = s[2:]
+		end := len(s) + 1
+
+		for i := end; i >= 0; i-- {
+			if s[i] != '0' {
+				end = i + 1
+				break
+			}
+		}
+
+		// ignoring error, because it can't fail as we generated
+		// the string internally from a real number
+		t, _ = strconv.ParseInt(s[:end], 10, 64)
+	}
+
+	return
+}
diff --git a/vendor/github.com/go-playground/universal-translator/.gitignore b/vendor/github.com/go-playground/universal-translator/.gitignore
new file mode 100644
index 0000000..2661785
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/.gitignore
@@ -0,0 +1,24 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
\ No newline at end of file
diff --git a/vendor/github.com/go-playground/universal-translator/LICENSE b/vendor/github.com/go-playground/universal-translator/LICENSE
new file mode 100644
index 0000000..8d8aba1
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Go Playground
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/github.com/go-playground/universal-translator/README.md b/vendor/github.com/go-playground/universal-translator/README.md
new file mode 100644
index 0000000..24aef15
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/README.md
@@ -0,0 +1,90 @@
+## universal-translator
+<img align="right" src="https://raw.githubusercontent.com/go-playground/universal-translator/master/logo.png">
+![Project status](https://img.shields.io/badge/version-0.16.0-green.svg)
+[![Build Status](https://semaphoreci.com/api/v1/joeybloggs/universal-translator/branches/master/badge.svg)](https://semaphoreci.com/joeybloggs/universal-translator)
+[![Coverage Status](https://coveralls.io/repos/github/go-playground/universal-translator/badge.svg)](https://coveralls.io/github/go-playground/universal-translator)
+[![Go Report Card](https://goreportcard.com/badge/github.com/go-playground/universal-translator)](https://goreportcard.com/report/github.com/go-playground/universal-translator)
+[![GoDoc](https://godoc.org/github.com/go-playground/universal-translator?status.svg)](https://godoc.org/github.com/go-playground/universal-translator)
+![License](https://img.shields.io/dub/l/vibe-d.svg)
+[![Gitter](https://badges.gitter.im/go-playground/universal-translator.svg)](https://gitter.im/go-playground/universal-translator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
+
+Universal Translator is an i18n Translator for Go/Golang using CLDR data + pluralization rules
+
+Why another i18n library?
+--------------------------
+Because none of the plural rules seem to be correct out there, including the previous implementation of this package,
+so I took it upon myself to create [locales](https://github.com/go-playground/locales) for everyone to use; this package 
+is a thin wrapper around [locales](https://github.com/go-playground/locales) in order to store and translate text for 
+use in your applications.
+
+Features
+--------
+- [x] Rules generated from the [CLDR](http://cldr.unicode.org/index/downloads) data, v30.0.3
+- [x] Contains Cardinal, Ordinal and Range Plural Rules
+- [x] Contains Month, Weekday and Timezone translations built in
+- [x] Contains Date & Time formatting functions
+- [x] Contains Number, Currency, Accounting and Percent formatting functions
+- [x] Supports the "Gregorian" calendar only ( my time isn't unlimited, had to draw the line somewhere )
+- [x] Support loading translations from files
+- [x] Exporting translations to file(s), mainly for getting them professionally translated
+- [ ] Code Generation for translation files -> Go code.. i.e. after it has been professionally translated
+- [ ] Tests for all languages, I need help with this, please see [here](https://github.com/go-playground/locales/issues/1)
+
+Installation
+-----------
+
+Use go get 
+
+```shell
+go get github.com/go-playground/universal-translator
+```
+
+Usage & Documentation
+-------
+
+Please see https://godoc.org/github.com/go-playground/universal-translator for usage docs
+
+##### Examples:
+
+- [Basic](https://github.com/go-playground/universal-translator/tree/master/examples/basic)
+- [Full - no files](https://github.com/go-playground/universal-translator/tree/master/examples/full-no-files)
+- [Full - with files](https://github.com/go-playground/universal-translator/tree/master/examples/full-with-files)
+
+File formatting
+--------------
+All types, Plain substitution, Cardinal, Ordinal and Range translations can all be contained withing the same file(s);
+they are only separated for easy viewing.
+
+##### Examples:
+
+- [Formats](https://github.com/go-playground/universal-translator/tree/master/examples/file-formats)
+
+##### Basic Makeup
+NOTE: not all fields are needed for all translation types, see [examples](https://github.com/go-playground/universal-translator/tree/master/examples/file-formats)
+```json
+{
+    "locale": "en",
+    "key": "days-left",
+    "trans": "You have {0} day left.",
+    "type": "Cardinal",
+    "rule": "One",
+    "override": false
+}
+```
+|Field|Description|
+|---|---|
+|locale|The locale for which the translation is for.|
+|key|The translation key that will be used to store and lookup each translation; normally it is a string or integer.|
+|trans|The actual translation text.|
+|type|The type of translation Cardinal, Ordinal, Range or "" for a plain substitution(not required to be defined if plain used)|
+|rule|The plural rule for which the translation is for eg. One, Two, Few, Many or Other.(not required to be defined if plain used)|
+|override|If you wish to override an existing translation that has already been registered, set this to 'true'. 99% of the time there is no need to define it.|
+
+Help With Tests
+---------------
+To anyone interesting in helping or contributing, I sure could use some help creating tests for each language.
+Please see issue [here](https://github.com/go-playground/locales/issues/1) for details.
+
+License
+------
+Distributed under MIT License, please see license file in code for more details.
diff --git a/vendor/github.com/go-playground/universal-translator/benchmarks_test.go b/vendor/github.com/go-playground/universal-translator/benchmarks_test.go
new file mode 100644
index 0000000..3f5d0a4
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/benchmarks_test.go
@@ -0,0 +1,110 @@
+package ut
+
+import (
+	"testing"
+
+	"github.com/go-playground/locales/en"
+)
+
+func BenchmarkBasicTranslation(b *testing.B) {
+
+	en := en.New()
+	ut := New(en, en)
+	loc, found := ut.FindTranslator("en")
+	if !found {
+		b.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key      interface{}
+		trans    string
+		expected error
+		override bool
+	}{
+		{
+			key:      "welcome",
+			trans:    "Welcome to the site",
+			expected: nil,
+		},
+		{
+			key:      "welcome-user",
+			trans:    "Welcome to the site {0}",
+			expected: nil,
+		},
+		{
+			key:      "welcome-user2",
+			trans:    "Welcome to the site {0}, your location is {1}",
+			expected: nil,
+		},
+	}
+
+	for _, tt := range translations {
+		if err := loc.Add(tt.key, tt.trans, tt.override); err != nil {
+			b.Fatalf("adding translation '%s' failed with key '%s'", tt.trans, tt.key)
+		}
+	}
+
+	var err error
+
+	b.ResetTimer()
+
+	b.Run("", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			if _, err = loc.T("welcome"); err != nil {
+				b.Error(err)
+			}
+		}
+	})
+
+	b.Run("Parallel", func(b *testing.B) {
+
+		b.RunParallel(func(pb *testing.PB) {
+
+			for pb.Next() {
+				if _, err = loc.T("welcome"); err != nil {
+					b.Error(err)
+				}
+			}
+		})
+	})
+
+	b.Run("With1Param", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			if _, err = loc.T("welcome-user", "Joeybloggs"); err != nil {
+				b.Error(err)
+			}
+		}
+	})
+
+	b.Run("ParallelWith1Param", func(b *testing.B) {
+
+		b.RunParallel(func(pb *testing.PB) {
+
+			for pb.Next() {
+				if _, err = loc.T("welcome-user", "Joeybloggs"); err != nil {
+					b.Error(err)
+				}
+			}
+		})
+	})
+
+	b.Run("With2Param", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			if _, err = loc.T("welcome-user2", "Joeybloggs", "/dev/tty0"); err != nil {
+				b.Error(err)
+			}
+		}
+	})
+
+	b.Run("ParallelWith2Param", func(b *testing.B) {
+
+		b.RunParallel(func(pb *testing.PB) {
+
+			for pb.Next() {
+				if _, err = loc.T("welcome-user2", "Joeybloggs", "/dev/tty0"); err != nil {
+					b.Error(err)
+				}
+			}
+		})
+	})
+}
diff --git a/vendor/github.com/go-playground/universal-translator/errors.go b/vendor/github.com/go-playground/universal-translator/errors.go
new file mode 100644
index 0000000..38b163b
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/errors.go
@@ -0,0 +1,148 @@
+package ut
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/go-playground/locales"
+)
+
+var (
+	// ErrUnknowTranslation indicates the translation could not be found
+	ErrUnknowTranslation = errors.New("Unknown Translation")
+)
+
+var _ error = new(ErrConflictingTranslation)
+var _ error = new(ErrRangeTranslation)
+var _ error = new(ErrOrdinalTranslation)
+var _ error = new(ErrCardinalTranslation)
+var _ error = new(ErrMissingPluralTranslation)
+var _ error = new(ErrExistingTranslator)
+
+// ErrExistingTranslator is the error representing a conflicting translator
+type ErrExistingTranslator struct {
+	locale string
+}
+
+// Error returns ErrExistingTranslator's internal error text
+func (e *ErrExistingTranslator) Error() string {
+	return fmt.Sprintf("error: conflicting translator for locale '%s'", e.locale)
+}
+
+// ErrConflictingTranslation is the error representing a conflicting translation
+type ErrConflictingTranslation struct {
+	locale string
+	key    interface{}
+	rule   locales.PluralRule
+	text   string
+}
+
+// Error returns ErrConflictingTranslation's internal error text
+func (e *ErrConflictingTranslation) Error() string {
+
+	if _, ok := e.key.(string); !ok {
+		return fmt.Sprintf("error: conflicting key '%#v' rule '%s' with text '%s' for locale '%s', value being ignored", e.key, e.rule, e.text, e.locale)
+	}
+
+	return fmt.Sprintf("error: conflicting key '%s' rule '%s' with text '%s' for locale '%s', value being ignored", e.key, e.rule, e.text, e.locale)
+}
+
+// ErrRangeTranslation is the error representing a range translation error
+type ErrRangeTranslation struct {
+	text string
+}
+
+// Error returns ErrRangeTranslation's internal error text
+func (e *ErrRangeTranslation) Error() string {
+	return e.text
+}
+
+// ErrOrdinalTranslation is the error representing an ordinal translation error
+type ErrOrdinalTranslation struct {
+	text string
+}
+
+// Error returns ErrOrdinalTranslation's internal error text
+func (e *ErrOrdinalTranslation) Error() string {
+	return e.text
+}
+
+// ErrCardinalTranslation is the error representing a cardinal translation error
+type ErrCardinalTranslation struct {
+	text string
+}
+
+// Error returns ErrCardinalTranslation's internal error text
+func (e *ErrCardinalTranslation) Error() string {
+	return e.text
+}
+
+// ErrMissingPluralTranslation is the error signifying a missing translation given
+// the locales plural rules.
+type ErrMissingPluralTranslation struct {
+	locale          string
+	key             interface{}
+	rule            locales.PluralRule
+	translationType string
+}
+
+// Error returns ErrMissingPluralTranslation's internal error text
+func (e *ErrMissingPluralTranslation) Error() string {
+
+	if _, ok := e.key.(string); !ok {
+		return fmt.Sprintf("error: missing '%s' plural rule '%s' for translation with key '%#v' and locale '%s'", e.translationType, e.rule, e.key, e.locale)
+	}
+
+	return fmt.Sprintf("error: missing '%s' plural rule '%s' for translation with key '%s' and locale '%s'", e.translationType, e.rule, e.key, e.locale)
+}
+
+// ErrMissingBracket is the error representing a missing bracket in a translation
+// eg. This is a {0 <-- missing ending '}'
+type ErrMissingBracket struct {
+	locale string
+	key    interface{}
+	text   string
+}
+
+// Error returns ErrMissingBracket error message
+func (e *ErrMissingBracket) Error() string {
+	return fmt.Sprintf("error: missing bracket '{}', in translation. locale: '%s' key: '%v' text: '%s'", e.locale, e.key, e.text)
+}
+
+// ErrBadParamSyntax is the error representing a bad parameter definition in a translation
+// eg. This is a {must-be-int}
+type ErrBadParamSyntax struct {
+	locale string
+	param  string
+	key    interface{}
+	text   string
+}
+
+// Error returns ErrBadParamSyntax error message
+func (e *ErrBadParamSyntax) Error() string {
+	return fmt.Sprintf("error: bad parameter syntax, missing parameter '%s' in translation. locale: '%s' key: '%v' text: '%s'", e.param, e.locale, e.key, e.text)
+}
+
+// import/export errors
+
+// ErrMissingLocale is the error representing an expected locale that could
+// not be found aka locale not registered with the UniversalTranslator Instance
+type ErrMissingLocale struct {
+	locale string
+}
+
+// Error returns ErrMissingLocale's internal error text
+func (e *ErrMissingLocale) Error() string {
+	return fmt.Sprintf("error: locale '%s' not registered.", e.locale)
+}
+
+// ErrBadPluralDefinition is the error representing an incorrect plural definition
+// usually found within translations defined within files during the import process.
+type ErrBadPluralDefinition struct {
+	tl translation
+}
+
+// Error returns ErrBadPluralDefinition's internal error text
+func (e *ErrBadPluralDefinition) Error() string {
+	return fmt.Sprintf("error: bad plural definition '%#v'", e.tl)
+}
diff --git a/vendor/github.com/go-playground/universal-translator/import_export.go b/vendor/github.com/go-playground/universal-translator/import_export.go
new file mode 100644
index 0000000..7bd76f2
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/import_export.go
@@ -0,0 +1,274 @@
+package ut
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"io"
+
+	"github.com/go-playground/locales"
+)
+
+type translation struct {
+	Locale           string      `json:"locale"`
+	Key              interface{} `json:"key"` // either string or integer
+	Translation      string      `json:"trans"`
+	PluralType       string      `json:"type,omitempty"`
+	PluralRule       string      `json:"rule,omitempty"`
+	OverrideExisting bool        `json:"override,omitempty"`
+}
+
+const (
+	cardinalType = "Cardinal"
+	ordinalType  = "Ordinal"
+	rangeType    = "Range"
+)
+
+// ImportExportFormat is the format of the file import or export
+type ImportExportFormat uint8
+
+// supported Export Formats
+const (
+	FormatJSON ImportExportFormat = iota
+)
+
+// Export writes the translations out to a file on disk.
+//
+// NOTE: this currently only works with string or int translations keys.
+func (t *UniversalTranslator) Export(format ImportExportFormat, dirname string) error {
+
+	_, err := os.Stat(dirname)
+	fmt.Println(dirname, err, os.IsNotExist(err))
+	if err != nil {
+
+		if !os.IsNotExist(err) {
+			return err
+		}
+
+		if err = os.MkdirAll(dirname, 0744); err != nil {
+			return err
+		}
+	}
+
+	// build up translations
+	var trans []translation
+	var b []byte
+	var ext string
+
+	for _, locale := range t.translators {
+
+		for k, v := range locale.(*translator).translations {
+			trans = append(trans, translation{
+				Locale:      locale.Locale(),
+				Key:         k,
+				Translation: v.text,
+			})
+		}
+
+		for k, pluralTrans := range locale.(*translator).cardinalTanslations {
+
+			for i, plural := range pluralTrans {
+
+				// leave enough for all plural rules
+				// but not all are set for all languages.
+				if plural == nil {
+					continue
+				}
+
+				trans = append(trans, translation{
+					Locale:      locale.Locale(),
+					Key:         k.(string),
+					Translation: plural.text,
+					PluralType:  cardinalType,
+					PluralRule:  locales.PluralRule(i).String(),
+				})
+			}
+		}
+
+		for k, pluralTrans := range locale.(*translator).ordinalTanslations {
+
+			for i, plural := range pluralTrans {
+
+				// leave enough for all plural rules
+				// but not all are set for all languages.
+				if plural == nil {
+					continue
+				}
+
+				trans = append(trans, translation{
+					Locale:      locale.Locale(),
+					Key:         k.(string),
+					Translation: plural.text,
+					PluralType:  ordinalType,
+					PluralRule:  locales.PluralRule(i).String(),
+				})
+			}
+		}
+
+		for k, pluralTrans := range locale.(*translator).rangeTanslations {
+
+			for i, plural := range pluralTrans {
+
+				// leave enough for all plural rules
+				// but not all are set for all languages.
+				if plural == nil {
+					continue
+				}
+
+				trans = append(trans, translation{
+					Locale:      locale.Locale(),
+					Key:         k.(string),
+					Translation: plural.text,
+					PluralType:  rangeType,
+					PluralRule:  locales.PluralRule(i).String(),
+				})
+			}
+		}
+
+		switch format {
+		case FormatJSON:
+			b, err = json.MarshalIndent(trans, "", "    ")
+			ext = ".json"
+		}
+
+		if err != nil {
+			return err
+		}
+
+		err = ioutil.WriteFile(filepath.Join(dirname, fmt.Sprintf("%s%s", locale.Locale(), ext)), b, 0644)
+		if err != nil {
+			return err
+		}
+
+		trans = trans[0:0]
+	}
+
+	return nil
+}
+
+// Import reads the translations out of a file or directory on disk.
+//
+// NOTE: this currently only works with string or int translations keys.
+func (t *UniversalTranslator) Import(format ImportExportFormat, dirnameOrFilename string) error {
+
+	fi, err := os.Stat(dirnameOrFilename)
+	if err != nil {
+		return err
+	}
+
+	processFn := func(filename string) error {
+
+		f, err := os.Open(filename)
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+
+		return t.ImportByReader(format, f)
+	}
+
+	if !fi.IsDir() {
+		return processFn(dirnameOrFilename)
+	}
+
+	// recursively go through directory
+	walker := func(path string, info os.FileInfo, err error) error {
+
+		if info.IsDir() {
+			return nil
+		}
+
+		switch format {
+		case FormatJSON:
+			// skip non JSON files
+			if filepath.Ext(info.Name()) != ".json" {
+				return nil
+			}
+		}
+
+		return processFn(path)
+	}
+
+	return filepath.Walk(dirnameOrFilename, walker)
+}
+
+// ImportByReader imports the the translations found within the contents read from the supplied reader.
+//
+// NOTE: generally used when assets have been embedded into the binary and are already in memory.
+func (t *UniversalTranslator) ImportByReader(format ImportExportFormat, reader io.Reader) error {
+
+	b, err := ioutil.ReadAll(reader)
+	if err != nil {
+		return err
+	}
+
+	var trans []translation
+
+	switch format {
+	case FormatJSON:
+		err = json.Unmarshal(b, &trans)
+	}
+
+	if err != nil {
+		return err
+	}
+
+	for _, tl := range trans {
+
+		locale, found := t.FindTranslator(tl.Locale)
+		if !found {
+			return &ErrMissingLocale{locale: tl.Locale}
+		}
+
+		pr := stringToPR(tl.PluralRule)
+
+		if pr == locales.PluralRuleUnknown {
+
+			err = locale.Add(tl.Key, tl.Translation, tl.OverrideExisting)
+			if err != nil {
+				return err
+			}
+
+			continue
+		}
+
+		switch tl.PluralType {
+		case cardinalType:
+			err = locale.AddCardinal(tl.Key, tl.Translation, pr, tl.OverrideExisting)
+		case ordinalType:
+			err = locale.AddOrdinal(tl.Key, tl.Translation, pr, tl.OverrideExisting)
+		case rangeType:
+			err = locale.AddRange(tl.Key, tl.Translation, pr, tl.OverrideExisting)
+		default:
+			return &ErrBadPluralDefinition{tl: tl}
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func stringToPR(s string) locales.PluralRule {
+
+	switch s {
+	case "One":
+		return locales.PluralRuleOne
+	case "Two":
+		return locales.PluralRuleTwo
+	case "Few":
+		return locales.PluralRuleFew
+	case "Many":
+		return locales.PluralRuleMany
+	case "Other":
+		return locales.PluralRuleOther
+	default:
+		return locales.PluralRuleUnknown
+	}
+
+}
diff --git a/vendor/github.com/go-playground/universal-translator/import_export_test.go b/vendor/github.com/go-playground/universal-translator/import_export_test.go
new file mode 100644
index 0000000..e6a8505
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/import_export_test.go
@@ -0,0 +1,789 @@
+package ut
+
+import (
+	"fmt"
+	"path/filepath"
+	"testing"
+
+	"os"
+
+	"github.com/go-playground/locales"
+	"github.com/go-playground/locales/en"
+	"github.com/go-playground/locales/nl"
+)
+
+// NOTES:
+// - Run "go test" to run tests
+// - Run "gocov test | gocov report" to report on test converage by file
+// - Run "gocov test | gocov annotate -" to report on all code and functions, those ,marked with "MISS" were never called
+//
+// or
+//
+// -- may be a good idea to change to output path to somewherelike /tmp
+// go test -coverprofile cover.out && go tool cover -html=cover.out -o cover.html
+//
+
+func TestExportImportBasic(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+	en, found := uni.GetTranslator("en") // or fallback if fails to find 'en'
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		{
+			key:      "test_trans",
+			trans:    "Welcome {0}",
+			expected: nil,
+		},
+		{
+			key:      -1,
+			trans:    "Welcome {0}",
+			expected: nil,
+		},
+		{
+			key:      "test_trans2",
+			trans:    "{0} to the {1}.",
+			expected: nil,
+		},
+		{
+			key:      "test_trans3",
+			trans:    "Welcome {0} to the {1}",
+			expected: nil,
+		},
+		{
+			key:      "test_trans4",
+			trans:    "{0}{1}",
+			expected: nil,
+		},
+		{
+			key:           "test_trans",
+			trans:         "{0}{1}",
+			expected:      &ErrConflictingTranslation{locale: en.Locale(), key: "test_trans", text: "{0}{1}"},
+			expectedError: true,
+		},
+		{
+			key:           -1,
+			trans:         "{0}{1}",
+			expected:      &ErrConflictingTranslation{locale: en.Locale(), key: -1, text: "{0}{1}"},
+			expectedError: true,
+		},
+		{
+			key:      "test_trans",
+			trans:    "Welcome {0} to the {1}.",
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range translations {
+
+		err := en.Add(tt.key, tt.trans, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError {
+				t.Errorf("Expected '%s' Got '%s'", tt.expected, err)
+			} else {
+				if err.Error() != tt.expected.Error() {
+					t.Errorf("Expected '%s' Got '%s'", tt.expected.Error(), err.Error())
+				}
+			}
+		}
+	}
+
+	dirname := "testdata/translations"
+	defer os.RemoveAll(dirname)
+
+	err := uni.Export(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	uni = New(e, e)
+
+	err = uni.Import(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	en, found = uni.GetTranslator("en") // or fallback if fails to find 'en'
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	tests := []struct {
+		key           interface{}
+		params        []string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "test_trans",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Welcome Joeybloggs to the The Test.",
+		},
+		{
+			key:      "test_trans2",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Joeybloggs to the The Test.",
+		},
+		{
+			key:      "test_trans3",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Welcome Joeybloggs to the The Test",
+		},
+		{
+			key:      "test_trans4",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "JoeybloggsThe Test",
+		},
+		// bad translation
+		{
+			key:           "non-existant-key",
+			params:        []string{"Joeybloggs", "The Test"},
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		s, err := en.T(tt.key, tt.params...)
+		if s != tt.expected {
+			if !tt.expectedError || (tt.expectedError && err != ErrUnknowTranslation) {
+				t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+			}
+		}
+	}
+}
+
+func TestExportImportCardinal(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+	en, found := uni.GetTranslator("en")
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		rule          locales.PluralRule
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		// bad translation
+		{
+			key:           "cardinal_test",
+			trans:         "You have a day left.",
+			rule:          locales.PluralRuleOne,
+			expected:      &ErrCardinalTranslation{text: fmt.Sprintf("error: parameter '%s' not found, may want to use 'Add' instead of 'AddCardinal'. locale: '%s' key: '%v' text: '%s'", paramZero, en.Locale(), "cardinal_test", "You have a day left.")},
+			expectedError: true,
+		},
+		{
+			key:      "cardinal_test",
+			trans:    "You have {0} day",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+		},
+		{
+			key:      "cardinal_test",
+			trans:    "You have {0} days left.",
+			rule:     locales.PluralRuleOther,
+			expected: nil,
+		},
+		{
+			key:           "cardinal_test",
+			trans:         "You have {0} days left.",
+			rule:          locales.PluralRuleOther,
+			expected:      &ErrConflictingTranslation{locale: en.Locale(), key: "cardinal_test", rule: locales.PluralRuleOther, text: "You have {0} days left."},
+			expectedError: true,
+		},
+		{
+			key:      "cardinal_test",
+			trans:    "You have {0} day left.",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range translations {
+
+		err := en.AddCardinal(tt.key, tt.trans, tt.rule, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError || err.Error() != tt.expected.Error() {
+				t.Errorf("Expected '%s' Got '%s'", tt.expected, err)
+			}
+		}
+	}
+
+	dirname := "testdata/translations"
+	defer os.RemoveAll(dirname)
+
+	err := uni.Export(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	uni = New(e, e)
+
+	err = uni.Import(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	en, found = uni.GetTranslator("en") // or fallback if fails to find 'en'
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	tests := []struct {
+		key           interface{}
+		num           float64
+		digits        uint64
+		param         string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "cardinal_test",
+			num:      1,
+			digits:   0,
+			param:    string(en.FmtNumber(1, 0)),
+			expected: "You have 1 day left.",
+		},
+		// bad translation key
+		{
+			key:           "non-existant",
+			num:           1,
+			digits:        0,
+			param:         string(en.FmtNumber(1, 0)),
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		s, err := en.C(tt.key, tt.num, tt.digits, tt.param)
+		if err != nil {
+			if !tt.expectedError && err != ErrUnknowTranslation {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestExportImportOrdinal(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+	en, found := uni.GetTranslator("en")
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		rule          locales.PluralRule
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		// bad translation
+		{
+			key:           "day",
+			trans:         "st",
+			rule:          locales.PluralRuleOne,
+			expected:      &ErrOrdinalTranslation{text: fmt.Sprintf("error: parameter '%s' not found, may want to use 'Add' instead of 'AddOrdinal'. locale: '%s' key: '%v' text: '%s'", paramZero, en.Locale(), "day", "st")},
+			expectedError: true,
+		},
+		{
+			key:      "day",
+			trans:    "{0}sfefewt",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "{0}nd",
+			rule:     locales.PluralRuleTwo,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "{0}rd",
+			rule:     locales.PluralRuleFew,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "{0}th",
+			rule:     locales.PluralRuleOther,
+			expected: nil,
+		},
+		// bad translation
+		{
+			key:           "day",
+			trans:         "{0}th",
+			rule:          locales.PluralRuleOther,
+			expected:      &ErrConflictingTranslation{locale: en.Locale(), key: "day", rule: locales.PluralRuleOther, text: "{0}th"},
+			expectedError: true,
+		},
+		{
+			key:      "day",
+			trans:    "{0}st",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range translations {
+
+		err := en.AddOrdinal(tt.key, tt.trans, tt.rule, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError || err.Error() != tt.expected.Error() {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+	}
+
+	dirname := "testdata/translations"
+	defer os.RemoveAll(dirname)
+
+	err := uni.Export(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	uni = New(e, e)
+
+	err = uni.Import(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	en, found = uni.GetTranslator("en") // or fallback if fails to find 'en'
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	tests := []struct {
+		key           interface{}
+		num           float64
+		digits        uint64
+		param         string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "day",
+			num:      1,
+			digits:   0,
+			param:    string(en.FmtNumber(1, 0)),
+			expected: "1st",
+		},
+		{
+			key:      "day",
+			num:      2,
+			digits:   0,
+			param:    string(en.FmtNumber(2, 0)),
+			expected: "2nd",
+		},
+		{
+			key:      "day",
+			num:      3,
+			digits:   0,
+			param:    string(en.FmtNumber(3, 0)),
+			expected: "3rd",
+		},
+		{
+			key:      "day",
+			num:      4,
+			digits:   0,
+			param:    string(en.FmtNumber(4, 0)),
+			expected: "4th",
+		},
+		{
+			key:      "day",
+			num:      10258.43,
+			digits:   0,
+			param:    string(en.FmtNumber(10258.43, 0)),
+			expected: "10,258th",
+		},
+		// bad translation
+		{
+			key:           "d-day",
+			num:           10258.43,
+			digits:        0,
+			param:         string(en.FmtNumber(10258.43, 0)),
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		s, err := en.O(tt.key, tt.num, tt.digits, tt.param)
+		if err != nil {
+			if !tt.expectedError && err != ErrUnknowTranslation {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestExportImportRange(t *testing.T) {
+
+	n := nl.New()
+	uni := New(n, n)
+
+	// dutch
+	nl, found := uni.GetTranslator("nl")
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		rule          locales.PluralRule
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		// bad translation
+		{
+			key:           "day",
+			trans:         "er -{1} dag vertrokken",
+			rule:          locales.PluralRuleOne,
+			expected:      &ErrRangeTranslation{text: fmt.Sprintf("error: parameter '%s' not found, are you sure you're adding a Range Translation? locale: '%s' key: '%s' text: '%s'", paramZero, nl.Locale(), "day", "er -{1} dag vertrokken")},
+			expectedError: true,
+		},
+		// bad translation
+		{
+			key:           "day",
+			trans:         "er {0}- dag vertrokken",
+			rule:          locales.PluralRuleOne,
+			expected:      &ErrRangeTranslation{text: fmt.Sprintf("error: parameter '%s' not found, a Range Translation requires two parameters. locale: '%s' key: '%s' text: '%s'", paramOne, nl.Locale(), "day", "er {0}- dag vertrokken")},
+			expectedError: true,
+		},
+		{
+			key:      "day",
+			trans:    "er {0}-{1} dag",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "er zijn {0}-{1} dagen over",
+			rule:     locales.PluralRuleOther,
+			expected: nil,
+		},
+		// bad translation
+		{
+			key:           "day",
+			trans:         "er zijn {0}-{1} dagen over",
+			rule:          locales.PluralRuleOther,
+			expected:      &ErrConflictingTranslation{locale: nl.Locale(), key: "day", rule: locales.PluralRuleOther, text: "er zijn {0}-{1} dagen over"},
+			expectedError: true,
+		},
+		{
+			key:      "day",
+			trans:    "er {0}-{1} dag vertrokken",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range translations {
+
+		err := nl.AddRange(tt.key, tt.trans, tt.rule, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError || err.Error() != tt.expected.Error() {
+				t.Errorf("Expected '%#v' Got '%s'", tt.expected, err)
+			}
+		}
+	}
+
+	dirname := "testdata/translations"
+	defer os.RemoveAll(dirname)
+
+	err := uni.Export(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	uni = New(n, n)
+
+	err = uni.Import(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	nl, found = uni.GetTranslator("nl") // or fallback if fails to find 'en'
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	tests := []struct {
+		key           interface{}
+		num1          float64
+		digits1       uint64
+		num2          float64
+		digits2       uint64
+		param1        string
+		param2        string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "day",
+			num1:     1,
+			digits1:  0,
+			num2:     2,
+			digits2:  0,
+			param1:   string(nl.FmtNumber(1, 0)),
+			param2:   string(nl.FmtNumber(2, 0)),
+			expected: "er zijn 1-2 dagen over",
+		},
+		{
+			key:      "day",
+			num1:     0,
+			digits1:  0,
+			num2:     1,
+			digits2:  0,
+			param1:   string(nl.FmtNumber(0, 0)),
+			param2:   string(nl.FmtNumber(1, 0)),
+			expected: "er 0-1 dag vertrokken",
+		},
+		{
+			key:      "day",
+			num1:     0,
+			digits1:  0,
+			num2:     2,
+			digits2:  0,
+			param1:   string(nl.FmtNumber(0, 0)),
+			param2:   string(nl.FmtNumber(2, 0)),
+			expected: "er zijn 0-2 dagen over",
+		},
+		// bad translations from here
+		{
+			key:           "d-day",
+			num1:          0,
+			digits1:       0,
+			num2:          2,
+			digits2:       0,
+			param1:        string(nl.FmtNumber(0, 0)),
+			param2:        string(nl.FmtNumber(2, 0)),
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		s, err := nl.R(tt.key, tt.num1, tt.digits1, tt.num2, tt.digits2, tt.param1, tt.param2)
+		if err != nil {
+			if !tt.expectedError && err != ErrUnknowTranslation {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestImportRecursive(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+
+	dirname := "testdata/nested1"
+	err := uni.Import(FormatJSON, dirname)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	en, found := uni.GetTranslator("en") // or fallback if fails to find 'en'
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	tests := []struct {
+		key           interface{}
+		params        []string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "test_trans",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Welcome Joeybloggs to the The Test.",
+		},
+		{
+			key:      "test_trans2",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Joeybloggs to the The Test.",
+		},
+		{
+			key:      "test_trans3",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Welcome Joeybloggs to the The Test",
+		},
+		{
+			key:      "test_trans4",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "JoeybloggsThe Test",
+		},
+		// bad translation
+		{
+			key:           "non-existant-key",
+			params:        []string{"Joeybloggs", "The Test"},
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		s, err := en.T(tt.key, tt.params...)
+		if s != tt.expected {
+			if !tt.expectedError || (tt.expectedError && err != ErrUnknowTranslation) {
+				t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+			}
+		}
+	}
+}
+
+func TestBadImport(t *testing.T) {
+
+	// test non existant file
+	e := en.New()
+	uni := New(e, e)
+
+	filename := "testdata/non-existant-file.json"
+	expected := "stat testdata/non-existant-file.json: no such file or directory"
+	err := uni.Import(FormatJSON, filename)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// test bad parameter basic translation
+	filename = "testdata/bad-translation1.json"
+	expected = "error: bad parameter syntax, missing parameter '{0}' in translation. locale: 'en' key: 'test_trans3' text: 'Welcome {lettersnotpermitted} to the {1}'"
+	err = uni.Import(FormatJSON, filename)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// test missing bracket basic translation
+	filename = "testdata/bad-translation2.json"
+	expected = "error: missing bracket '{}', in translation. locale: 'en' key: 'test_trans3' text: 'Welcome {0 to the {1}'"
+	err = uni.Import(FormatJSON, filename)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// test missing locale basic translation
+	filename = "testdata/bad-translation3.json"
+	expected = "error: locale 'nl' not registered."
+	err = uni.Import(FormatJSON, filename)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// test bad plural definition
+	filename = "testdata/bad-translation4.json"
+	expected = "error: bad plural definition 'ut.translation{Locale:\"en\", Key:\"cardinal_test\", Translation:\"You have {0} day left.\", PluralType:\"NotAPluralType\", PluralRule:\"One\", OverrideExisting:false}'"
+	err = uni.Import(FormatJSON, filename)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// test bad plural rule for locale
+	filename = "testdata/bad-translation5.json"
+	expected = "error: cardinal plural rule 'Many' does not exist for locale 'en' key: 'cardinal_test' text: 'You have {0} day left.'"
+	err = uni.Import(FormatJSON, filename)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// test invalid JSON
+	filename = "testdata/bad-translation6.json"
+	expected = "invalid character ']' after object key:value pair"
+	err = uni.Import(FormatJSON, filename)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// test bad io.Reader
+	f, err := os.Open(filename)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+	f.Close()
+
+	expected = "read testdata/bad-translation6.json: bad file descriptor"
+	err = uni.ImportByReader(FormatJSON, f)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+}
+
+func TestBadExport(t *testing.T) {
+
+	// test readonly directory
+	e := en.New()
+	uni := New(e, e)
+
+	en, found := uni.GetTranslator("en") // or fallback if fails to find 'en'
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	dirname := "testdata/readonly"
+	err := os.Mkdir(dirname, 0444)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+	defer os.RemoveAll(dirname)
+
+	en.Add("day", "this is a day", false)
+
+	expected := "open testdata/readonly/en.json: permission denied"
+	err = uni.Export(FormatJSON, dirname)
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// test exporting into directory inside readonly directory
+	expected = "stat testdata/readonly/inner: permission denied"
+	err = uni.Export(FormatJSON, filepath.Join(dirname, "inner"))
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+}
diff --git a/vendor/github.com/go-playground/universal-translator/logo.png b/vendor/github.com/go-playground/universal-translator/logo.png
new file mode 100644
index 0000000..a37aa8c
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/logo.png
diff --git a/vendor/github.com/go-playground/universal-translator/translator.go b/vendor/github.com/go-playground/universal-translator/translator.go
new file mode 100644
index 0000000..cfafce8
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/translator.go
@@ -0,0 +1,420 @@
+package ut
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/go-playground/locales"
+)
+
+const (
+	paramZero          = "{0}"
+	paramOne           = "{1}"
+	unknownTranslation = ""
+)
+
+// Translator is universal translators
+// translator instance which is a thin wrapper
+// around locales.Translator instance providing
+// some extra functionality
+type Translator interface {
+	locales.Translator
+
+	// adds a normal translation for a particular language/locale
+	// {#} is the only replacement type accepted and are ad infinitum
+	// eg. one: '{0} day left' other: '{0} days left'
+	Add(key interface{}, text string, override bool) error
+
+	// adds a cardinal plural translation for a particular language/locale
+	// {0} is the only replacement type accepted and only one variable is accepted as
+	// multiple cannot be used for a plural rule determination, unless it is a range;
+	// see AddRange below.
+	// eg. in locale 'en' one: '{0} day left' other: '{0} days left'
+	AddCardinal(key interface{}, text string, rule locales.PluralRule, override bool) error
+
+	// adds an ordinal plural translation for a particular language/locale
+	// {0} is the only replacement type accepted and only one variable is accepted as
+	// multiple cannot be used for a plural rule determination, unless it is a range;
+	// see AddRange below.
+	// eg. in locale 'en' one: '{0}st day of spring' other: '{0}nd day of spring'
+	// - 1st, 2nd, 3rd...
+	AddOrdinal(key interface{}, text string, rule locales.PluralRule, override bool) error
+
+	// adds a range plural translation for a particular language/locale
+	// {0} and {1} are the only replacement types accepted and only these are accepted.
+	// eg. in locale 'nl' one: '{0}-{1} day left' other: '{0}-{1} days left'
+	AddRange(key interface{}, text string, rule locales.PluralRule, override bool) error
+
+	// creates the translation for the locale given the 'key' and params passed in
+	T(key interface{}, params ...string) (string, error)
+
+	// creates the cardinal translation for the locale given the 'key', 'num' and 'digit' arguments
+	//  and param passed in
+	C(key interface{}, num float64, digits uint64, param string) (string, error)
+
+	// creates the ordinal translation for the locale given the 'key', 'num' and 'digit' arguments
+	// and param passed in
+	O(key interface{}, num float64, digits uint64, param string) (string, error)
+
+	//  creates the range translation for the locale given the 'key', 'num1', 'digit1', 'num2' and
+	//  'digit2' arguments and 'param1' and 'param2' passed in
+	R(key interface{}, num1 float64, digits1 uint64, num2 float64, digits2 uint64, param1, param2 string) (string, error)
+
+	// VerifyTranslations checks to ensures that no plural rules have been
+	// missed within the translations.
+	VerifyTranslations() error
+}
+
+var _ Translator = new(translator)
+var _ locales.Translator = new(translator)
+
+type translator struct {
+	locales.Translator
+	translations        map[interface{}]*transText
+	cardinalTanslations map[interface{}][]*transText // array index is mapped to locales.PluralRule index + the locales.PluralRuleUnknown
+	ordinalTanslations  map[interface{}][]*transText
+	rangeTanslations    map[interface{}][]*transText
+}
+
+type transText struct {
+	text    string
+	indexes []int
+}
+
+func newTranslator(trans locales.Translator) Translator {
+	return &translator{
+		Translator:          trans,
+		translations:        make(map[interface{}]*transText), // translation text broken up by byte index
+		cardinalTanslations: make(map[interface{}][]*transText),
+		ordinalTanslations:  make(map[interface{}][]*transText),
+		rangeTanslations:    make(map[interface{}][]*transText),
+	}
+}
+
+// Add adds a normal translation for a particular language/locale
+// {#} is the only replacement type accepted and are ad infinitum
+// eg. one: '{0} day left' other: '{0} days left'
+func (t *translator) Add(key interface{}, text string, override bool) error {
+
+	if _, ok := t.translations[key]; ok && !override {
+		return &ErrConflictingTranslation{locale: t.Locale(), key: key, text: text}
+	}
+
+	lb := strings.Count(text, "{")
+	rb := strings.Count(text, "}")
+
+	if lb != rb {
+		return &ErrMissingBracket{locale: t.Locale(), key: key, text: text}
+	}
+
+	trans := &transText{
+		text: text,
+	}
+
+	var idx int
+
+	for i := 0; i < lb; i++ {
+		s := "{" + strconv.Itoa(i) + "}"
+		idx = strings.Index(text, s)
+		if idx == -1 {
+			return &ErrBadParamSyntax{locale: t.Locale(), param: s, key: key, text: text}
+		}
+
+		trans.indexes = append(trans.indexes, idx)
+		trans.indexes = append(trans.indexes, idx+len(s))
+	}
+
+	t.translations[key] = trans
+
+	return nil
+}
+
+// AddCardinal adds a cardinal plural translation for a particular language/locale
+// {0} is the only replacement type accepted and only one variable is accepted as
+// multiple cannot be used for a plural rule determination, unless it is a range;
+// see AddRange below.
+// eg. in locale 'en' one: '{0} day left' other: '{0} days left'
+func (t *translator) AddCardinal(key interface{}, text string, rule locales.PluralRule, override bool) error {
+
+	var verified bool
+
+	// verify plural rule exists for locale
+	for _, pr := range t.PluralsCardinal() {
+		if pr == rule {
+			verified = true
+			break
+		}
+	}
+
+	if !verified {
+		return &ErrCardinalTranslation{text: fmt.Sprintf("error: cardinal plural rule '%s' does not exist for locale '%s' key: '%v' text: '%s'", rule, t.Locale(), key, text)}
+	}
+
+	tarr, ok := t.cardinalTanslations[key]
+	if ok {
+		// verify not adding a conflicting record
+		if len(tarr) > 0 && tarr[rule] != nil && !override {
+			return &ErrConflictingTranslation{locale: t.Locale(), key: key, rule: rule, text: text}
+		}
+
+	} else {
+		tarr = make([]*transText, 7, 7)
+		t.cardinalTanslations[key] = tarr
+	}
+
+	trans := &transText{
+		text:    text,
+		indexes: make([]int, 2, 2),
+	}
+
+	tarr[rule] = trans
+
+	idx := strings.Index(text, paramZero)
+	if idx == -1 {
+		tarr[rule] = nil
+		return &ErrCardinalTranslation{text: fmt.Sprintf("error: parameter '%s' not found, may want to use 'Add' instead of 'AddCardinal'. locale: '%s' key: '%v' text: '%s'", paramZero, t.Locale(), key, text)}
+	}
+
+	trans.indexes[0] = idx
+	trans.indexes[1] = idx + len(paramZero)
+
+	return nil
+}
+
+// AddOrdinal adds an ordinal plural translation for a particular language/locale
+// {0} is the only replacement type accepted and only one variable is accepted as
+// multiple cannot be used for a plural rule determination, unless it is a range;
+// see AddRange below.
+// eg. in locale 'en' one: '{0}st day of spring' other: '{0}nd day of spring' - 1st, 2nd, 3rd...
+func (t *translator) AddOrdinal(key interface{}, text string, rule locales.PluralRule, override bool) error {
+
+	var verified bool
+
+	// verify plural rule exists for locale
+	for _, pr := range t.PluralsOrdinal() {
+		if pr == rule {
+			verified = true
+			break
+		}
+	}
+
+	if !verified {
+		return &ErrOrdinalTranslation{text: fmt.Sprintf("error: ordinal plural rule '%s' does not exist for locale '%s' key: '%v' text: '%s'", rule, t.Locale(), key, text)}
+	}
+
+	tarr, ok := t.ordinalTanslations[key]
+	if ok {
+		// verify not adding a conflicting record
+		if len(tarr) > 0 && tarr[rule] != nil && !override {
+			return &ErrConflictingTranslation{locale: t.Locale(), key: key, rule: rule, text: text}
+		}
+
+	} else {
+		tarr = make([]*transText, 7, 7)
+		t.ordinalTanslations[key] = tarr
+	}
+
+	trans := &transText{
+		text:    text,
+		indexes: make([]int, 2, 2),
+	}
+
+	tarr[rule] = trans
+
+	idx := strings.Index(text, paramZero)
+	if idx == -1 {
+		tarr[rule] = nil
+		return &ErrOrdinalTranslation{text: fmt.Sprintf("error: parameter '%s' not found, may want to use 'Add' instead of 'AddOrdinal'. locale: '%s' key: '%v' text: '%s'", paramZero, t.Locale(), key, text)}
+	}
+
+	trans.indexes[0] = idx
+	trans.indexes[1] = idx + len(paramZero)
+
+	return nil
+}
+
+// AddRange adds a range plural translation for a particular language/locale
+// {0} and {1} are the only replacement types accepted and only these are accepted.
+// eg. in locale 'nl' one: '{0}-{1} day left' other: '{0}-{1} days left'
+func (t *translator) AddRange(key interface{}, text string, rule locales.PluralRule, override bool) error {
+
+	var verified bool
+
+	// verify plural rule exists for locale
+	for _, pr := range t.PluralsRange() {
+		if pr == rule {
+			verified = true
+			break
+		}
+	}
+
+	if !verified {
+		return &ErrRangeTranslation{text: fmt.Sprintf("error: range plural rule '%s' does not exist for locale '%s' key: '%v' text: '%s'", rule, t.Locale(), key, text)}
+	}
+
+	tarr, ok := t.rangeTanslations[key]
+	if ok {
+		// verify not adding a conflicting record
+		if len(tarr) > 0 && tarr[rule] != nil && !override {
+			return &ErrConflictingTranslation{locale: t.Locale(), key: key, rule: rule, text: text}
+		}
+
+	} else {
+		tarr = make([]*transText, 7, 7)
+		t.rangeTanslations[key] = tarr
+	}
+
+	trans := &transText{
+		text:    text,
+		indexes: make([]int, 4, 4),
+	}
+
+	tarr[rule] = trans
+
+	idx := strings.Index(text, paramZero)
+	if idx == -1 {
+		tarr[rule] = nil
+		return &ErrRangeTranslation{text: fmt.Sprintf("error: parameter '%s' not found, are you sure you're adding a Range Translation? locale: '%s' key: '%v' text: '%s'", paramZero, t.Locale(), key, text)}
+	}
+
+	trans.indexes[0] = idx
+	trans.indexes[1] = idx + len(paramZero)
+
+	idx = strings.Index(text, paramOne)
+	if idx == -1 {
+		tarr[rule] = nil
+		return &ErrRangeTranslation{text: fmt.Sprintf("error: parameter '%s' not found, a Range Translation requires two parameters. locale: '%s' key: '%v' text: '%s'", paramOne, t.Locale(), key, text)}
+	}
+
+	trans.indexes[2] = idx
+	trans.indexes[3] = idx + len(paramOne)
+
+	return nil
+}
+
+// T creates the translation for the locale given the 'key' and params passed in
+func (t *translator) T(key interface{}, params ...string) (string, error) {
+
+	trans, ok := t.translations[key]
+	if !ok {
+		return unknownTranslation, ErrUnknowTranslation
+	}
+
+	b := make([]byte, 0, 64)
+
+	var start, end, count int
+
+	for i := 0; i < len(trans.indexes); i++ {
+		end = trans.indexes[i]
+		b = append(b, trans.text[start:end]...)
+		b = append(b, params[count]...)
+		i++
+		start = trans.indexes[i]
+		count++
+	}
+
+	b = append(b, trans.text[start:]...)
+
+	return string(b), nil
+}
+
+// C creates the cardinal translation for the locale given the 'key', 'num' and 'digit' arguments and param passed in
+func (t *translator) C(key interface{}, num float64, digits uint64, param string) (string, error) {
+
+	tarr, ok := t.cardinalTanslations[key]
+	if !ok {
+		return unknownTranslation, ErrUnknowTranslation
+	}
+
+	rule := t.CardinalPluralRule(num, digits)
+
+	trans := tarr[rule]
+
+	b := make([]byte, 0, 64)
+	b = append(b, trans.text[:trans.indexes[0]]...)
+	b = append(b, param...)
+	b = append(b, trans.text[trans.indexes[1]:]...)
+
+	return string(b), nil
+}
+
+// O creates the ordinal translation for the locale given the 'key', 'num' and 'digit' arguments and param passed in
+func (t *translator) O(key interface{}, num float64, digits uint64, param string) (string, error) {
+
+	tarr, ok := t.ordinalTanslations[key]
+	if !ok {
+		return unknownTranslation, ErrUnknowTranslation
+	}
+
+	rule := t.OrdinalPluralRule(num, digits)
+
+	trans := tarr[rule]
+
+	b := make([]byte, 0, 64)
+	b = append(b, trans.text[:trans.indexes[0]]...)
+	b = append(b, param...)
+	b = append(b, trans.text[trans.indexes[1]:]...)
+
+	return string(b), nil
+}
+
+// R creates the range translation for the locale given the 'key', 'num1', 'digit1', 'num2' and 'digit2' arguments
+// and 'param1' and 'param2' passed in
+func (t *translator) R(key interface{}, num1 float64, digits1 uint64, num2 float64, digits2 uint64, param1, param2 string) (string, error) {
+
+	tarr, ok := t.rangeTanslations[key]
+	if !ok {
+		return unknownTranslation, ErrUnknowTranslation
+	}
+
+	rule := t.RangePluralRule(num1, digits1, num2, digits2)
+
+	trans := tarr[rule]
+
+	b := make([]byte, 0, 64)
+	b = append(b, trans.text[:trans.indexes[0]]...)
+	b = append(b, param1...)
+	b = append(b, trans.text[trans.indexes[1]:trans.indexes[2]]...)
+	b = append(b, param2...)
+	b = append(b, trans.text[trans.indexes[3]:]...)
+
+	return string(b), nil
+}
+
+// VerifyTranslations checks to ensures that no plural rules have been
+// missed within the translations.
+func (t *translator) VerifyTranslations() error {
+
+	for k, v := range t.cardinalTanslations {
+
+		for _, rule := range t.PluralsCardinal() {
+
+			if v[rule] == nil {
+				return &ErrMissingPluralTranslation{locale: t.Locale(), translationType: "plural", rule: rule, key: k}
+			}
+		}
+	}
+
+	for k, v := range t.ordinalTanslations {
+
+		for _, rule := range t.PluralsOrdinal() {
+
+			if v[rule] == nil {
+				return &ErrMissingPluralTranslation{locale: t.Locale(), translationType: "ordinal", rule: rule, key: k}
+			}
+		}
+	}
+
+	for k, v := range t.rangeTanslations {
+
+		for _, rule := range t.PluralsRange() {
+
+			if v[rule] == nil {
+				return &ErrMissingPluralTranslation{locale: t.Locale(), translationType: "range", rule: rule, key: k}
+			}
+		}
+	}
+
+	return nil
+}
diff --git a/vendor/github.com/go-playground/universal-translator/translator_test.go b/vendor/github.com/go-playground/universal-translator/translator_test.go
new file mode 100644
index 0000000..837d2d3
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/translator_test.go
@@ -0,0 +1,858 @@
+package ut
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/go-playground/locales"
+	"github.com/go-playground/locales/en"
+	"github.com/go-playground/locales/en_CA"
+	"github.com/go-playground/locales/nl"
+)
+
+// NOTES:
+// - Run "go test" to run tests
+// - Run "gocov test | gocov report" to report on test converage by file
+// - Run "gocov test | gocov annotate -" to report on all code and functions, those ,marked with "MISS" were never called
+//
+// or
+//
+// -- may be a good idea to change to output path to somewherelike /tmp
+// go test -coverprofile cover.out && go tool cover -html=cover.out -o cover.html
+//
+
+func TestBasicTranslation(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+	en, found := uni.GetTranslator("en") // or fallback if fails to find 'en'
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		{
+			key:      "test_trans",
+			trans:    "Welcome {0}",
+			expected: nil,
+		},
+		{
+			key:      -1,
+			trans:    "Welcome {0}",
+			expected: nil,
+		},
+		{
+			key:      "test_trans2",
+			trans:    "{0} to the {1}.",
+			expected: nil,
+		},
+		{
+			key:      "test_trans3",
+			trans:    "Welcome {0} to the {1}",
+			expected: nil,
+		},
+		{
+			key:      "test_trans4",
+			trans:    "{0}{1}",
+			expected: nil,
+		},
+		{
+			key:           "test_trans",
+			trans:         "{0}{1}",
+			expected:      &ErrConflictingTranslation{locale: en.Locale(), key: "test_trans", text: "{0}{1}"},
+			expectedError: true,
+		},
+		{
+			key:           -1,
+			trans:         "{0}{1}",
+			expected:      &ErrConflictingTranslation{locale: en.Locale(), key: -1, text: "{0}{1}"},
+			expectedError: true,
+		},
+		{
+			key:      "test_trans",
+			trans:    "Welcome {0} to the {1}.",
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range translations {
+
+		err := en.Add(tt.key, tt.trans, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError {
+				t.Errorf("Expected '%s' Got '%s'", tt.expected, err)
+			} else {
+				if err.Error() != tt.expected.Error() {
+					t.Errorf("Expected '%s' Got '%s'", tt.expected.Error(), err.Error())
+				}
+			}
+		}
+	}
+
+	tests := []struct {
+		key           interface{}
+		params        []string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "test_trans",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Welcome Joeybloggs to the The Test.",
+		},
+		{
+			key:      "test_trans2",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Joeybloggs to the The Test.",
+		},
+		{
+			key:      "test_trans3",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "Welcome Joeybloggs to the The Test",
+		},
+		{
+			key:      "test_trans4",
+			params:   []string{"Joeybloggs", "The Test"},
+			expected: "JoeybloggsThe Test",
+		},
+		// bad translation
+		{
+			key:           "non-existant-key",
+			params:        []string{"Joeybloggs", "The Test"},
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+		s, err := en.T(tt.key, tt.params...)
+		if s != tt.expected {
+			if !tt.expectedError && err != ErrUnknowTranslation {
+				t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+			}
+		}
+	}
+}
+
+func TestCardinalTranslation(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+	en, found := uni.GetTranslator("en")
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		rule          locales.PluralRule
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		// bad translation
+		{
+			key:           "cardinal_test",
+			trans:         "You have a day left.",
+			rule:          locales.PluralRuleOne,
+			expected:      &ErrCardinalTranslation{text: fmt.Sprintf("error: parameter '%s' not found, may want to use 'Add' instead of 'AddCardinal'. locale: '%s' key: '%v' text: '%s'", paramZero, en.Locale(), "cardinal_test", "You have a day left.")},
+			expectedError: true,
+		},
+		// bad translation
+		{
+			key:           "cardinal_test",
+			trans:         "You have a day left few.",
+			rule:          locales.PluralRuleFew,
+			expected:      &ErrCardinalTranslation{text: fmt.Sprintf("error: cardinal plural rule '%s' does not exist for locale '%s' key: '%s' text: '%s'", locales.PluralRuleFew, en.Locale(), "cardinal_test", "You have a day left few.")},
+			expectedError: true,
+		},
+		{
+			key:      "cardinal_test",
+			trans:    "You have {0} day",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+		},
+		{
+			key:      "cardinal_test",
+			trans:    "You have {0} days left.",
+			rule:     locales.PluralRuleOther,
+			expected: nil,
+		},
+		{
+			key:           "cardinal_test",
+			trans:         "You have {0} days left.",
+			rule:          locales.PluralRuleOther,
+			expected:      &ErrConflictingTranslation{locale: en.Locale(), key: "cardinal_test", rule: locales.PluralRuleOther, text: "You have {0} days left."},
+			expectedError: true,
+		},
+		{
+			key:      "cardinal_test",
+			trans:    "You have {0} day left.",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range translations {
+
+		err := en.AddCardinal(tt.key, tt.trans, tt.rule, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError || err.Error() != tt.expected.Error() {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+	}
+
+	tests := []struct {
+		key           interface{}
+		num           float64
+		digits        uint64
+		param         string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "cardinal_test",
+			num:      1,
+			digits:   0,
+			param:    string(en.FmtNumber(1, 0)),
+			expected: "You have 1 day left.",
+		},
+		// bad translation key
+		{
+			key:           "non-existant",
+			num:           1,
+			digits:        0,
+			param:         string(en.FmtNumber(1, 0)),
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		s, err := en.C(tt.key, tt.num, tt.digits, tt.param)
+		if err != nil {
+			if !tt.expectedError && err != ErrUnknowTranslation {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestOrdinalTranslation(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+	en, found := uni.GetTranslator("en")
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		rule          locales.PluralRule
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		// bad translation
+		{
+			key:           "day",
+			trans:         "st",
+			rule:          locales.PluralRuleOne,
+			expected:      &ErrOrdinalTranslation{text: fmt.Sprintf("error: parameter '%s' not found, may want to use 'Add' instead of 'AddOrdinal'. locale: '%s' key: '%v' text: '%s'", paramZero, en.Locale(), "day", "st")},
+			expectedError: true,
+		},
+		// bad translation
+		{
+			key:           "day",
+			trans:         "st",
+			rule:          locales.PluralRuleMany,
+			expected:      &ErrOrdinalTranslation{text: fmt.Sprintf("error: ordinal plural rule '%s' does not exist for locale '%s' key: '%s' text: '%s'", locales.PluralRuleMany, en.Locale(), "day", "st")},
+			expectedError: true,
+		},
+		{
+			key:      "day",
+			trans:    "{0}st",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "{0}nd",
+			rule:     locales.PluralRuleTwo,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "{0}rd",
+			rule:     locales.PluralRuleFew,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "{0}th",
+			rule:     locales.PluralRuleOther,
+			expected: nil,
+		},
+		// bad translation
+		{
+			key:           "day",
+			trans:         "{0}th",
+			rule:          locales.PluralRuleOther,
+			expected:      &ErrConflictingTranslation{locale: en.Locale(), key: "day", rule: locales.PluralRuleOther, text: "{0}th"},
+			expectedError: true,
+		},
+		{
+			key:      "day",
+			trans:    "{0}st",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range translations {
+
+		err := en.AddOrdinal(tt.key, tt.trans, tt.rule, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError || err.Error() != tt.expected.Error() {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+	}
+
+	tests := []struct {
+		key           interface{}
+		num           float64
+		digits        uint64
+		param         string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "day",
+			num:      1,
+			digits:   0,
+			param:    string(en.FmtNumber(1, 0)),
+			expected: "1st",
+		},
+		{
+			key:      "day",
+			num:      2,
+			digits:   0,
+			param:    string(en.FmtNumber(2, 0)),
+			expected: "2nd",
+		},
+		{
+			key:      "day",
+			num:      3,
+			digits:   0,
+			param:    string(en.FmtNumber(3, 0)),
+			expected: "3rd",
+		},
+		{
+			key:      "day",
+			num:      4,
+			digits:   0,
+			param:    string(en.FmtNumber(4, 0)),
+			expected: "4th",
+		},
+		{
+			key:      "day",
+			num:      10258.43,
+			digits:   0,
+			param:    string(en.FmtNumber(10258.43, 0)),
+			expected: "10,258th",
+		},
+		// bad translation
+		{
+			key:           "d-day",
+			num:           10258.43,
+			digits:        0,
+			param:         string(en.FmtNumber(10258.43, 0)),
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		s, err := en.O(tt.key, tt.num, tt.digits, tt.param)
+		if err != nil {
+			if !tt.expectedError && err != ErrUnknowTranslation {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestRangeTranslation(t *testing.T) {
+
+	n := nl.New()
+	uni := New(n, n)
+
+	// dutch
+	nl, found := uni.GetTranslator("nl")
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		rule          locales.PluralRule
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		// bad translation
+		{
+			key:           "day",
+			trans:         "er -{1} dag vertrokken",
+			rule:          locales.PluralRuleOne,
+			expected:      &ErrRangeTranslation{text: fmt.Sprintf("error: parameter '%s' not found, are you sure you're adding a Range Translation? locale: '%s' key: '%s' text: '%s'", paramZero, nl.Locale(), "day", "er -{1} dag vertrokken")},
+			expectedError: true,
+		},
+		// bad translation
+		{
+			key:           "day",
+			trans:         "er {0}- dag vertrokken",
+			rule:          locales.PluralRuleMany,
+			expected:      &ErrRangeTranslation{text: fmt.Sprintf("error: range plural rule '%s' does not exist for locale '%s' key: '%s' text: '%s'", locales.PluralRuleMany, nl.Locale(), "day", "er {0}- dag vertrokken")},
+			expectedError: true,
+		},
+		// bad translation
+		{
+			key:           "day",
+			trans:         "er {0}- dag vertrokken",
+			rule:          locales.PluralRuleOne,
+			expected:      &ErrRangeTranslation{text: fmt.Sprintf("error: parameter '%s' not found, a Range Translation requires two parameters. locale: '%s' key: '%s' text: '%s'", paramOne, nl.Locale(), "day", "er {0}- dag vertrokken")},
+			expectedError: true,
+		},
+		{
+			key:      "day",
+			trans:    "er {0}-{1} dag",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "er zijn {0}-{1} dagen over",
+			rule:     locales.PluralRuleOther,
+			expected: nil,
+		},
+		// bad translation
+		{
+			key:           "day",
+			trans:         "er zijn {0}-{1} dagen over",
+			rule:          locales.PluralRuleOther,
+			expected:      &ErrConflictingTranslation{locale: nl.Locale(), key: "day", rule: locales.PluralRuleOther, text: "er zijn {0}-{1} dagen over"},
+			expectedError: true,
+		},
+		{
+			key:      "day",
+			trans:    "er {0}-{1} dag vertrokken",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range translations {
+
+		err := nl.AddRange(tt.key, tt.trans, tt.rule, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError || err.Error() != tt.expected.Error() {
+				t.Errorf("Expected '%#v' Got '%s'", tt.expected, err)
+			}
+		}
+	}
+
+	tests := []struct {
+		key           interface{}
+		num1          float64
+		digits1       uint64
+		num2          float64
+		digits2       uint64
+		param1        string
+		param2        string
+		expected      string
+		expectedError bool
+	}{
+		{
+			key:      "day",
+			num1:     1,
+			digits1:  0,
+			num2:     2,
+			digits2:  0,
+			param1:   string(nl.FmtNumber(1, 0)),
+			param2:   string(nl.FmtNumber(2, 0)),
+			expected: "er zijn 1-2 dagen over",
+		},
+		{
+			key:      "day",
+			num1:     0,
+			digits1:  0,
+			num2:     1,
+			digits2:  0,
+			param1:   string(nl.FmtNumber(0, 0)),
+			param2:   string(nl.FmtNumber(1, 0)),
+			expected: "er 0-1 dag vertrokken",
+		},
+		{
+			key:      "day",
+			num1:     0,
+			digits1:  0,
+			num2:     2,
+			digits2:  0,
+			param1:   string(nl.FmtNumber(0, 0)),
+			param2:   string(nl.FmtNumber(2, 0)),
+			expected: "er zijn 0-2 dagen over",
+		},
+		// bad translations from here
+		{
+			key:           "d-day",
+			num1:          0,
+			digits1:       0,
+			num2:          2,
+			digits2:       0,
+			param1:        string(nl.FmtNumber(0, 0)),
+			param2:        string(nl.FmtNumber(2, 0)),
+			expected:      "",
+			expectedError: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		s, err := nl.R(tt.key, tt.num1, tt.digits1, tt.num2, tt.digits2, tt.param1, tt.param2)
+		if err != nil {
+			if !tt.expectedError && err != ErrUnknowTranslation {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+
+		if s != tt.expected {
+			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
+		}
+	}
+}
+
+func TestFallbackTranslator(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+	en, found := uni.GetTranslator("en")
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	if en.Locale() != "en" {
+		t.Errorf("Expected '%s' Got '%s'", "en", en.Locale())
+	}
+
+	fallback, _ := uni.GetTranslator("nl")
+	if fallback.Locale() != "en" {
+		t.Errorf("Expected '%s' Got '%s'", "en", fallback.Locale())
+	}
+
+	en, _ = uni.FindTranslator("nl", "en")
+	if en.Locale() != "en" {
+		t.Errorf("Expected '%s' Got '%s'", "en", en.Locale())
+	}
+
+	fallback, _ = uni.FindTranslator("nl")
+	if fallback.Locale() != "en" {
+		t.Errorf("Expected '%s' Got '%s'", "en", fallback.Locale())
+	}
+}
+
+func TestAddTranslator(t *testing.T) {
+
+	e := en.New()
+	n := nl.New()
+	uni := New(e, n)
+
+	tests := []struct {
+		trans         locales.Translator
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		{
+			trans:    en_CA.New(),
+			expected: nil,
+			override: false,
+		},
+		{
+			trans:         n,
+			expected:      &ErrExistingTranslator{locale: n.Locale()},
+			expectedError: true,
+			override:      false,
+		},
+		{
+			trans:         e,
+			expected:      &ErrExistingTranslator{locale: e.Locale()},
+			expectedError: true,
+			override:      false,
+		},
+		{
+			trans:    e,
+			expected: nil,
+			override: true,
+		},
+	}
+
+	for _, tt := range tests {
+
+		err := uni.AddTranslator(tt.trans, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError || err.Error() != tt.expected.Error() {
+				t.Errorf("Expected '%s' Got '%s'", tt.expected, err)
+			}
+		}
+	}
+}
+
+func TestVerifyTranslations(t *testing.T) {
+
+	n := nl.New()
+	// dutch
+	uni := New(n, n)
+
+	loc, _ := uni.GetTranslator("nl")
+	if loc.Locale() != "nl" {
+		t.Errorf("Expected '%s' Got '%s'", "nl", loc.Locale())
+	}
+
+	// cardinal checks
+
+	err := loc.AddCardinal("day", "je {0} dag hebben verlaten", locales.PluralRuleOne, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	// fail cardinal rules
+	expected := &ErrMissingPluralTranslation{locale: loc.Locale(), translationType: "plural", rule: locales.PluralRuleOther, key: "day"}
+	err = loc.VerifyTranslations()
+	if err == nil || err.Error() != expected.Error() {
+		t.Errorf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// success cardinal
+	err = loc.AddCardinal("day", "je {0} dagen hebben verlaten", locales.PluralRuleOther, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	err = loc.VerifyTranslations()
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	// range checks
+	err = loc.AddRange("day", "je {0}-{1} dagen hebben verlaten", locales.PluralRuleOther, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	// fail range rules
+	expected = &ErrMissingPluralTranslation{locale: loc.Locale(), translationType: "range", rule: locales.PluralRuleOne, key: "day"}
+	err = loc.VerifyTranslations()
+	if err == nil || err.Error() != expected.Error() {
+		t.Errorf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// success range
+	err = loc.AddRange("day", "je {0}-{1} dag hebben verlaten", locales.PluralRuleOne, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	err = loc.VerifyTranslations()
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	// ok so 'nl' aka dutch, ony has one plural rule for ordinals, so going to switch to english from here which has 4
+
+	err = uni.AddTranslator(en.New(), false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	loc, _ = uni.GetTranslator("en")
+	if loc.Locale() != "en" {
+		t.Errorf("Expected '%s' Got '%s'", "en", loc.Locale())
+	}
+
+	// ordinal checks
+
+	err = loc.AddOrdinal("day", "{0}st", locales.PluralRuleOne, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	err = loc.AddOrdinal("day", "{0}rd", locales.PluralRuleFew, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	err = loc.AddOrdinal("day", "{0}th", locales.PluralRuleOther, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	// fail ordinal rules
+	expected = &ErrMissingPluralTranslation{locale: loc.Locale(), translationType: "ordinal", rule: locales.PluralRuleTwo, key: "day"}
+	err = loc.VerifyTranslations()
+	if err == nil || err.Error() != expected.Error() {
+		t.Errorf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	// success ordinal
+
+	err = loc.AddOrdinal("day", "{0}nd", locales.PluralRuleTwo, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	err = loc.VerifyTranslations()
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+}
+
+func TestVerifyTranslationsWithNonStringKeys(t *testing.T) {
+
+	n := nl.New()
+	// dutch
+	uni := New(n, n)
+
+	loc, _ := uni.GetTranslator("nl")
+	if loc.Locale() != "nl" {
+		t.Errorf("Expected '%s' Got '%s'", "nl", loc.Locale())
+	}
+
+	// cardinal checks
+
+	err := loc.AddCardinal(-1, "je {0} dag hebben verlaten", locales.PluralRuleOne, false)
+	if err != nil {
+		t.Fatalf("Expected '<nil>' Got '%s'", err)
+	}
+
+	// fail cardinal rules
+	expected := &ErrMissingPluralTranslation{locale: loc.Locale(), translationType: "plural", rule: locales.PluralRuleOther, key: -1}
+	err = loc.VerifyTranslations()
+	if err == nil || err.Error() != expected.Error() {
+		t.Errorf("Expected '%s' Got '%s'", expected, err)
+	}
+}
+
+func TestGetFallback(t *testing.T) {
+
+	// dutch
+	n := nl.New()
+	e := en.New()
+
+	uni := New(e, n)
+
+	trans := uni.GetFallback()
+
+	expected := "en"
+
+	if trans.Locale() != expected {
+		t.Errorf("Expected '%s' Got '%s'", expected, trans.Locale())
+	}
+}
+
+func TestVerifyUTTranslations(t *testing.T) {
+
+	e := en.New()
+	uni := New(e, e)
+	en, found := uni.GetTranslator("en")
+	if !found {
+		t.Fatalf("Expected '%t' Got '%t'", true, found)
+	}
+
+	translations := []struct {
+		key           interface{}
+		trans         string
+		rule          locales.PluralRule
+		expected      error
+		expectedError bool
+		override      bool
+	}{
+		{
+			key:      "day",
+			trans:    "{0}st",
+			rule:     locales.PluralRuleOne,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "{0}nd",
+			rule:     locales.PluralRuleTwo,
+			expected: nil,
+		},
+		{
+			key:      "day",
+			trans:    "{0}rd",
+			rule:     locales.PluralRuleFew,
+			expected: nil,
+		},
+		// intentionally leaving out plural other
+		// {
+		// 	key:      "day",
+		// 	trans:    "{0}th",
+		// 	rule:     locales.PluralRuleOther,
+		// 	expected: nil,
+		// },
+	}
+
+	for _, tt := range translations {
+
+		err := en.AddOrdinal(tt.key, tt.trans, tt.rule, tt.override)
+		if err != tt.expected {
+			if !tt.expectedError || err.Error() != tt.expected.Error() {
+				t.Errorf("Expected '<nil>' Got '%s'", err)
+			}
+		}
+	}
+
+	expected := "error: missing 'ordinal' plural rule 'Other' for translation with key 'day' and locale 'en'"
+	err := uni.VerifyTranslations()
+	if err == nil || err.Error() != expected {
+		t.Fatalf("Expected '%s' Got '%s'", expected, err)
+	}
+
+	err = en.AddOrdinal("day", "{0}th", locales.PluralRuleOther, false)
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+
+	err = uni.VerifyTranslations()
+	if err != nil {
+		t.Fatalf("Expected '%v' Got '%s'", nil, err)
+	}
+}
diff --git a/vendor/github.com/go-playground/universal-translator/universal_translator.go b/vendor/github.com/go-playground/universal-translator/universal_translator.go
new file mode 100644
index 0000000..dbf707f
--- /dev/null
+++ b/vendor/github.com/go-playground/universal-translator/universal_translator.go
@@ -0,0 +1,113 @@
+package ut
+
+import (
+	"strings"
+
+	"github.com/go-playground/locales"
+)
+
+// UniversalTranslator holds all locale & translation data
+type UniversalTranslator struct {
+	translators map[string]Translator
+	fallback    Translator
+}
+
+// New returns a new UniversalTranslator instance set with
+// the fallback locale and locales it should support
+func New(fallback locales.Translator, supportedLocales ...locales.Translator) *UniversalTranslator {
+
+	t := &UniversalTranslator{
+		translators: make(map[string]Translator),
+	}
+
+	for _, v := range supportedLocales {
+
+		trans := newTranslator(v)
+		t.translators[strings.ToLower(trans.Locale())] = trans
+
+		if fallback.Locale() == v.Locale() {
+			t.fallback = trans
+		}
+	}
+
+	if t.fallback == nil && fallback != nil {
+		t.fallback = newTranslator(fallback)
+	}
+
+	return t
+}
+
+// FindTranslator trys to find a Translator based on an array of locales
+// and returns the first one it can find, otherwise returns the
+// fallback translator.
+func (t *UniversalTranslator) FindTranslator(locales ...string) (trans Translator, found bool) {
+
+	for _, locale := range locales {
+
+		if trans, found = t.translators[strings.ToLower(locale)]; found {
+			return
+		}
+	}
+
+	return t.fallback, false
+}
+
+// GetTranslator returns the specified translator for the given locale,
+// or fallback if not found
+func (t *UniversalTranslator) GetTranslator(locale string) (trans Translator, found bool) {
+
+	if trans, found = t.translators[strings.ToLower(locale)]; found {
+		return
+	}
+
+	return t.fallback, false
+}
+
+// GetFallback returns the fallback locale
+func (t *UniversalTranslator) GetFallback() Translator {
+	return t.fallback
+}
+
+// AddTranslator adds the supplied translator, if it already exists the override param
+// will be checked and if false an error will be returned, otherwise the translator will be
+// overridden; if the fallback matches the supplied translator it will be overridden as well
+// NOTE: this is normally only used when translator is embedded within a library
+func (t *UniversalTranslator) AddTranslator(translator locales.Translator, override bool) error {
+
+	lc := strings.ToLower(translator.Locale())
+	_, ok := t.translators[lc]
+	if ok && !override {
+		return &ErrExistingTranslator{locale: translator.Locale()}
+	}
+
+	trans := newTranslator(translator)
+
+	if t.fallback.Locale() == translator.Locale() {
+
+		// because it's optional to have a fallback, I don't impose that limitation
+		// don't know why you wouldn't but...
+		if !override {
+			return &ErrExistingTranslator{locale: translator.Locale()}
+		}
+
+		t.fallback = trans
+	}
+
+	t.translators[lc] = trans
+
+	return nil
+}
+
+// VerifyTranslations runs through all locales and identifies any issues
+// eg. missing plural rules for a locale
+func (t *UniversalTranslator) VerifyTranslations() (err error) {
+
+	for _, trans := range t.translators {
+		err = trans.VerifyTranslations()
+		if err != nil {
+			return
+		}
+	}
+
+	return
+}
diff --git a/vendor/github.com/pmezard/go-difflib/.travis.yml b/vendor/github.com/pmezard/go-difflib/.travis.yml
new file mode 100644
index 0000000..90c9c6f
--- /dev/null
+++ b/vendor/github.com/pmezard/go-difflib/.travis.yml
@@ -0,0 +1,5 @@
+language: go
+go:
+  - 1.5
+  - tip
+
diff --git a/vendor/github.com/pmezard/go-difflib/LICENSE b/vendor/github.com/pmezard/go-difflib/LICENSE
new file mode 100644
index 0000000..c67dad6
--- /dev/null
+++ b/vendor/github.com/pmezard/go-difflib/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2013, Patrick Mezard
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+    Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+    The names of its contributors may not be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/pmezard/go-difflib/README.md b/vendor/github.com/pmezard/go-difflib/README.md
new file mode 100644
index 0000000..e87f307
--- /dev/null
+++ b/vendor/github.com/pmezard/go-difflib/README.md
@@ -0,0 +1,50 @@
+go-difflib
+==========
+
+[![Build Status](https://travis-ci.org/pmezard/go-difflib.png?branch=master)](https://travis-ci.org/pmezard/go-difflib)
+[![GoDoc](https://godoc.org/github.com/pmezard/go-difflib/difflib?status.svg)](https://godoc.org/github.com/pmezard/go-difflib/difflib)
+
+Go-difflib is a partial port of python 3 difflib package. Its main goal
+was to make unified and context diff available in pure Go, mostly for
+testing purposes.
+
+The following class and functions (and related tests) have be ported:
+
+* `SequenceMatcher`
+* `unified_diff()`
+* `context_diff()`
+
+## Installation
+
+```bash
+$ go get github.com/pmezard/go-difflib/difflib
+```
+
+### Quick Start
+
+Diffs are configured with Unified (or ContextDiff) structures, and can
+be output to an io.Writer or returned as a string.
+
+```Go
+diff := UnifiedDiff{
+    A:        difflib.SplitLines("foo\nbar\n"),
+    B:        difflib.SplitLines("foo\nbaz\n"),
+    FromFile: "Original",
+    ToFile:   "Current",
+    Context:  3,
+}
+text, _ := GetUnifiedDiffString(diff)
+fmt.Printf(text)
+```
+
+would output:
+
+```
+--- Original
++++ Current
+@@ -1,3 +1,3 @@
+ foo
+-bar
++baz
+```
+
diff --git a/vendor/github.com/pmezard/go-difflib/difflib/difflib.go b/vendor/github.com/pmezard/go-difflib/difflib/difflib.go
new file mode 100644
index 0000000..003e99f
--- /dev/null
+++ b/vendor/github.com/pmezard/go-difflib/difflib/difflib.go
@@ -0,0 +1,772 @@
+// Package difflib is a partial port of Python difflib module.
+//
+// It provides tools to compare sequences of strings and generate textual diffs.
+//
+// The following class and functions have been ported:
+//
+// - SequenceMatcher
+//
+// - unified_diff
+//
+// - context_diff
+//
+// Getting unified diffs was the main goal of the port. Keep in mind this code
+// is mostly suitable to output text differences in a human friendly way, there
+// are no guarantees generated diffs are consumable by patch(1).
+package difflib
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io"
+	"strings"
+)
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}
+
+func calculateRatio(matches, length int) float64 {
+	if length > 0 {
+		return 2.0 * float64(matches) / float64(length)
+	}
+	return 1.0
+}
+
+type Match struct {
+	A    int
+	B    int
+	Size int
+}
+
+type OpCode struct {
+	Tag byte
+	I1  int
+	I2  int
+	J1  int
+	J2  int
+}
+
+// SequenceMatcher compares sequence of strings. The basic
+// algorithm predates, and is a little fancier than, an algorithm
+// published in the late 1980's by Ratcliff and Obershelp under the
+// hyperbolic name "gestalt pattern matching".  The basic idea is to find
+// the longest contiguous matching subsequence that contains no "junk"
+// elements (R-O doesn't address junk).  The same idea is then applied
+// recursively to the pieces of the sequences to the left and to the right
+// of the matching subsequence.  This does not yield minimal edit
+// sequences, but does tend to yield matches that "look right" to people.
+//
+// SequenceMatcher tries to compute a "human-friendly diff" between two
+// sequences.  Unlike e.g. UNIX(tm) diff, the fundamental notion is the
+// longest *contiguous* & junk-free matching subsequence.  That's what
+// catches peoples' eyes.  The Windows(tm) windiff has another interesting
+// notion, pairing up elements that appear uniquely in each sequence.
+// That, and the method here, appear to yield more intuitive difference
+// reports than does diff.  This method appears to be the least vulnerable
+// to synching up on blocks of "junk lines", though (like blank lines in
+// ordinary text files, or maybe "<P>" lines in HTML files).  That may be
+// because this is the only method of the 3 that has a *concept* of
+// "junk" <wink>.
+//
+// Timing:  Basic R-O is cubic time worst case and quadratic time expected
+// case.  SequenceMatcher is quadratic time for the worst case and has
+// expected-case behavior dependent in a complicated way on how many
+// elements the sequences have in common; best case time is linear.
+type SequenceMatcher struct {
+	a              []string
+	b              []string
+	b2j            map[string][]int
+	IsJunk         func(string) bool
+	autoJunk       bool
+	bJunk          map[string]struct{}
+	matchingBlocks []Match
+	fullBCount     map[string]int
+	bPopular       map[string]struct{}
+	opCodes        []OpCode
+}
+
+func NewMatcher(a, b []string) *SequenceMatcher {
+	m := SequenceMatcher{autoJunk: true}
+	m.SetSeqs(a, b)
+	return &m
+}
+
+func NewMatcherWithJunk(a, b []string, autoJunk bool,
+	isJunk func(string) bool) *SequenceMatcher {
+
+	m := SequenceMatcher{IsJunk: isJunk, autoJunk: autoJunk}
+	m.SetSeqs(a, b)
+	return &m
+}
+
+// Set two sequences to be compared.
+func (m *SequenceMatcher) SetSeqs(a, b []string) {
+	m.SetSeq1(a)
+	m.SetSeq2(b)
+}
+
+// Set the first sequence to be compared. The second sequence to be compared is
+// not changed.
+//
+// SequenceMatcher computes and caches detailed information about the second
+// sequence, so if you want to compare one sequence S against many sequences,
+// use .SetSeq2(s) once and call .SetSeq1(x) repeatedly for each of the other
+// sequences.
+//
+// See also SetSeqs() and SetSeq2().
+func (m *SequenceMatcher) SetSeq1(a []string) {
+	if &a == &m.a {
+		return
+	}
+	m.a = a
+	m.matchingBlocks = nil
+	m.opCodes = nil
+}
+
+// Set the second sequence to be compared. The first sequence to be compared is
+// not changed.
+func (m *SequenceMatcher) SetSeq2(b []string) {
+	if &b == &m.b {
+		return
+	}
+	m.b = b
+	m.matchingBlocks = nil
+	m.opCodes = nil
+	m.fullBCount = nil
+	m.chainB()
+}
+
+func (m *SequenceMatcher) chainB() {
+	// Populate line -> index mapping
+	b2j := map[string][]int{}
+	for i, s := range m.b {
+		indices := b2j[s]
+		indices = append(indices, i)
+		b2j[s] = indices
+	}
+
+	// Purge junk elements
+	m.bJunk = map[string]struct{}{}
+	if m.IsJunk != nil {
+		junk := m.bJunk
+		for s, _ := range b2j {
+			if m.IsJunk(s) {
+				junk[s] = struct{}{}
+			}
+		}
+		for s, _ := range junk {
+			delete(b2j, s)
+		}
+	}
+
+	// Purge remaining popular elements
+	popular := map[string]struct{}{}
+	n := len(m.b)
+	if m.autoJunk && n >= 200 {
+		ntest := n/100 + 1
+		for s, indices := range b2j {
+			if len(indices) > ntest {
+				popular[s] = struct{}{}
+			}
+		}
+		for s, _ := range popular {
+			delete(b2j, s)
+		}
+	}
+	m.bPopular = popular
+	m.b2j = b2j
+}
+
+func (m *SequenceMatcher) isBJunk(s string) bool {
+	_, ok := m.bJunk[s]
+	return ok
+}
+
+// Find longest matching block in a[alo:ahi] and b[blo:bhi].
+//
+// If IsJunk is not defined:
+//
+// Return (i,j,k) such that a[i:i+k] is equal to b[j:j+k], where
+//     alo <= i <= i+k <= ahi
+//     blo <= j <= j+k <= bhi
+// and for all (i',j',k') meeting those conditions,
+//     k >= k'
+//     i <= i'
+//     and if i == i', j <= j'
+//
+// In other words, of all maximal matching blocks, return one that
+// starts earliest in a, and of all those maximal matching blocks that
+// start earliest in a, return the one that starts earliest in b.
+//
+// If IsJunk is defined, first the longest matching block is
+// determined as above, but with the additional restriction that no
+// junk element appears in the block.  Then that block is extended as
+// far as possible by matching (only) junk elements on both sides.  So
+// the resulting block never matches on junk except as identical junk
+// happens to be adjacent to an "interesting" match.
+//
+// If no blocks match, return (alo, blo, 0).
+func (m *SequenceMatcher) findLongestMatch(alo, ahi, blo, bhi int) Match {
+	// CAUTION:  stripping common prefix or suffix would be incorrect.
+	// E.g.,
+	//    ab
+	//    acab
+	// Longest matching block is "ab", but if common prefix is
+	// stripped, it's "a" (tied with "b").  UNIX(tm) diff does so
+	// strip, so ends up claiming that ab is changed to acab by
+	// inserting "ca" in the middle.  That's minimal but unintuitive:
+	// "it's obvious" that someone inserted "ac" at the front.
+	// Windiff ends up at the same place as diff, but by pairing up
+	// the unique 'b's and then matching the first two 'a's.
+	besti, bestj, bestsize := alo, blo, 0
+
+	// find longest junk-free match
+	// during an iteration of the loop, j2len[j] = length of longest
+	// junk-free match ending with a[i-1] and b[j]
+	j2len := map[int]int{}
+	for i := alo; i != ahi; i++ {
+		// look at all instances of a[i] in b; note that because
+		// b2j has no junk keys, the loop is skipped if a[i] is junk
+		newj2len := map[int]int{}
+		for _, j := range m.b2j[m.a[i]] {
+			// a[i] matches b[j]
+			if j < blo {
+				continue
+			}
+			if j >= bhi {
+				break
+			}
+			k := j2len[j-1] + 1
+			newj2len[j] = k
+			if k > bestsize {
+				besti, bestj, bestsize = i-k+1, j-k+1, k
+			}
+		}
+		j2len = newj2len
+	}
+
+	// Extend the best by non-junk elements on each end.  In particular,
+	// "popular" non-junk elements aren't in b2j, which greatly speeds
+	// the inner loop above, but also means "the best" match so far
+	// doesn't contain any junk *or* popular non-junk elements.
+	for besti > alo && bestj > blo && !m.isBJunk(m.b[bestj-1]) &&
+		m.a[besti-1] == m.b[bestj-1] {
+		besti, bestj, bestsize = besti-1, bestj-1, bestsize+1
+	}
+	for besti+bestsize < ahi && bestj+bestsize < bhi &&
+		!m.isBJunk(m.b[bestj+bestsize]) &&
+		m.a[besti+bestsize] == m.b[bestj+bestsize] {
+		bestsize += 1
+	}
+
+	// Now that we have a wholly interesting match (albeit possibly
+	// empty!), we may as well suck up the matching junk on each
+	// side of it too.  Can't think of a good reason not to, and it
+	// saves post-processing the (possibly considerable) expense of
+	// figuring out what to do with it.  In the case of an empty
+	// interesting match, this is clearly the right thing to do,
+	// because no other kind of match is possible in the regions.
+	for besti > alo && bestj > blo && m.isBJunk(m.b[bestj-1]) &&
+		m.a[besti-1] == m.b[bestj-1] {
+		besti, bestj, bestsize = besti-1, bestj-1, bestsize+1
+	}
+	for besti+bestsize < ahi && bestj+bestsize < bhi &&
+		m.isBJunk(m.b[bestj+bestsize]) &&
+		m.a[besti+bestsize] == m.b[bestj+bestsize] {
+		bestsize += 1
+	}
+
+	return Match{A: besti, B: bestj, Size: bestsize}
+}
+
+// Return list of triples describing matching subsequences.
+//
+// Each triple is of the form (i, j, n), and means that
+// a[i:i+n] == b[j:j+n].  The triples are monotonically increasing in
+// i and in j. It's also guaranteed that if (i, j, n) and (i', j', n') are
+// adjacent triples in the list, and the second is not the last triple in the
+// list, then i+n != i' or j+n != j'. IOW, adjacent triples never describe
+// adjacent equal blocks.
+//
+// The last triple is a dummy, (len(a), len(b), 0), and is the only
+// triple with n==0.
+func (m *SequenceMatcher) GetMatchingBlocks() []Match {
+	if m.matchingBlocks != nil {
+		return m.matchingBlocks
+	}
+
+	var matchBlocks func(alo, ahi, blo, bhi int, matched []Match) []Match
+	matchBlocks = func(alo, ahi, blo, bhi int, matched []Match) []Match {
+		match := m.findLongestMatch(alo, ahi, blo, bhi)
+		i, j, k := match.A, match.B, match.Size
+		if match.Size > 0 {
+			if alo < i && blo < j {
+				matched = matchBlocks(alo, i, blo, j, matched)
+			}
+			matched = append(matched, match)
+			if i+k < ahi && j+k < bhi {
+				matched = matchBlocks(i+k, ahi, j+k, bhi, matched)
+			}
+		}
+		return matched
+	}
+	matched := matchBlocks(0, len(m.a), 0, len(m.b), nil)
+
+	// It's possible that we have adjacent equal blocks in the
+	// matching_blocks list now.
+	nonAdjacent := []Match{}
+	i1, j1, k1 := 0, 0, 0
+	for _, b := range matched {
+		// Is this block adjacent to i1, j1, k1?
+		i2, j2, k2 := b.A, b.B, b.Size
+		if i1+k1 == i2 && j1+k1 == j2 {
+			// Yes, so collapse them -- this just increases the length of
+			// the first block by the length of the second, and the first
+			// block so lengthened remains the block to compare against.
+			k1 += k2
+		} else {
+			// Not adjacent.  Remember the first block (k1==0 means it's
+			// the dummy we started with), and make the second block the
+			// new block to compare against.
+			if k1 > 0 {
+				nonAdjacent = append(nonAdjacent, Match{i1, j1, k1})
+			}
+			i1, j1, k1 = i2, j2, k2
+		}
+	}
+	if k1 > 0 {
+		nonAdjacent = append(nonAdjacent, Match{i1, j1, k1})
+	}
+
+	nonAdjacent = append(nonAdjacent, Match{len(m.a), len(m.b), 0})
+	m.matchingBlocks = nonAdjacent
+	return m.matchingBlocks
+}
+
+// Return list of 5-tuples describing how to turn a into b.
+//
+// Each tuple is of the form (tag, i1, i2, j1, j2).  The first tuple
+// has i1 == j1 == 0, and remaining tuples have i1 == the i2 from the
+// tuple preceding it, and likewise for j1 == the previous j2.
+//
+// The tags are characters, with these meanings:
+//
+// 'r' (replace):  a[i1:i2] should be replaced by b[j1:j2]
+//
+// 'd' (delete):   a[i1:i2] should be deleted, j1==j2 in this case.
+//
+// 'i' (insert):   b[j1:j2] should be inserted at a[i1:i1], i1==i2 in this case.
+//
+// 'e' (equal):    a[i1:i2] == b[j1:j2]
+func (m *SequenceMatcher) GetOpCodes() []OpCode {
+	if m.opCodes != nil {
+		return m.opCodes
+	}
+	i, j := 0, 0
+	matching := m.GetMatchingBlocks()
+	opCodes := make([]OpCode, 0, len(matching))
+	for _, m := range matching {
+		//  invariant:  we've pumped out correct diffs to change
+		//  a[:i] into b[:j], and the next matching block is
+		//  a[ai:ai+size] == b[bj:bj+size]. So we need to pump
+		//  out a diff to change a[i:ai] into b[j:bj], pump out
+		//  the matching block, and move (i,j) beyond the match
+		ai, bj, size := m.A, m.B, m.Size
+		tag := byte(0)
+		if i < ai && j < bj {
+			tag = 'r'
+		} else if i < ai {
+			tag = 'd'
+		} else if j < bj {
+			tag = 'i'
+		}
+		if tag > 0 {
+			opCodes = append(opCodes, OpCode{tag, i, ai, j, bj})
+		}
+		i, j = ai+size, bj+size
+		// the list of matching blocks is terminated by a
+		// sentinel with size 0
+		if size > 0 {
+			opCodes = append(opCodes, OpCode{'e', ai, i, bj, j})
+		}
+	}
+	m.opCodes = opCodes
+	return m.opCodes
+}
+
+// Isolate change clusters by eliminating ranges with no changes.
+//
+// Return a generator of groups with up to n lines of context.
+// Each group is in the same format as returned by GetOpCodes().
+func (m *SequenceMatcher) GetGroupedOpCodes(n int) [][]OpCode {
+	if n < 0 {
+		n = 3
+	}
+	codes := m.GetOpCodes()
+	if len(codes) == 0 {
+		codes = []OpCode{OpCode{'e', 0, 1, 0, 1}}
+	}
+	// Fixup leading and trailing groups if they show no changes.
+	if codes[0].Tag == 'e' {
+		c := codes[0]
+		i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
+		codes[0] = OpCode{c.Tag, max(i1, i2-n), i2, max(j1, j2-n), j2}
+	}
+	if codes[len(codes)-1].Tag == 'e' {
+		c := codes[len(codes)-1]
+		i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
+		codes[len(codes)-1] = OpCode{c.Tag, i1, min(i2, i1+n), j1, min(j2, j1+n)}
+	}
+	nn := n + n
+	groups := [][]OpCode{}
+	group := []OpCode{}
+	for _, c := range codes {
+		i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
+		// End the current group and start a new one whenever
+		// there is a large range with no changes.
+		if c.Tag == 'e' && i2-i1 > nn {
+			group = append(group, OpCode{c.Tag, i1, min(i2, i1+n),
+				j1, min(j2, j1+n)})
+			groups = append(groups, group)
+			group = []OpCode{}
+			i1, j1 = max(i1, i2-n), max(j1, j2-n)
+		}
+		group = append(group, OpCode{c.Tag, i1, i2, j1, j2})
+	}
+	if len(group) > 0 && !(len(group) == 1 && group[0].Tag == 'e') {
+		groups = append(groups, group)
+	}
+	return groups
+}
+
+// Return a measure of the sequences' similarity (float in [0,1]).
+//
+// Where T is the total number of elements in both sequences, and
+// M is the number of matches, this is 2.0*M / T.
+// Note that this is 1 if the sequences are identical, and 0 if
+// they have nothing in common.
+//
+// .Ratio() is expensive to compute if you haven't already computed
+// .GetMatchingBlocks() or .GetOpCodes(), in which case you may
+// want to try .QuickRatio() or .RealQuickRation() first to get an
+// upper bound.
+func (m *SequenceMatcher) Ratio() float64 {
+	matches := 0
+	for _, m := range m.GetMatchingBlocks() {
+		matches += m.Size
+	}
+	return calculateRatio(matches, len(m.a)+len(m.b))
+}
+
+// Return an upper bound on ratio() relatively quickly.
+//
+// This isn't defined beyond that it is an upper bound on .Ratio(), and
+// is faster to compute.
+func (m *SequenceMatcher) QuickRatio() float64 {
+	// viewing a and b as multisets, set matches to the cardinality
+	// of their intersection; this counts the number of matches
+	// without regard to order, so is clearly an upper bound
+	if m.fullBCount == nil {
+		m.fullBCount = map[string]int{}
+		for _, s := range m.b {
+			m.fullBCount[s] = m.fullBCount[s] + 1
+		}
+	}
+
+	// avail[x] is the number of times x appears in 'b' less the
+	// number of times we've seen it in 'a' so far ... kinda
+	avail := map[string]int{}
+	matches := 0
+	for _, s := range m.a {
+		n, ok := avail[s]
+		if !ok {
+			n = m.fullBCount[s]
+		}
+		avail[s] = n - 1
+		if n > 0 {
+			matches += 1
+		}
+	}
+	return calculateRatio(matches, len(m.a)+len(m.b))
+}
+
+// Return an upper bound on ratio() very quickly.
+//
+// This isn't defined beyond that it is an upper bound on .Ratio(), and
+// is faster to compute than either .Ratio() or .QuickRatio().
+func (m *SequenceMatcher) RealQuickRatio() float64 {
+	la, lb := len(m.a), len(m.b)
+	return calculateRatio(min(la, lb), la+lb)
+}
+
+// Convert range to the "ed" format
+func formatRangeUnified(start, stop int) string {
+	// Per the diff spec at http://www.unix.org/single_unix_specification/
+	beginning := start + 1 // lines start numbering with one
+	length := stop - start
+	if length == 1 {
+		return fmt.Sprintf("%d", beginning)
+	}
+	if length == 0 {
+		beginning -= 1 // empty ranges begin at line just before the range
+	}
+	return fmt.Sprintf("%d,%d", beginning, length)
+}
+
+// Unified diff parameters
+type UnifiedDiff struct {
+	A        []string // First sequence lines
+	FromFile string   // First file name
+	FromDate string   // First file time
+	B        []string // Second sequence lines
+	ToFile   string   // Second file name
+	ToDate   string   // Second file time
+	Eol      string   // Headers end of line, defaults to LF
+	Context  int      // Number of context lines
+}
+
+// Compare two sequences of lines; generate the delta as a unified diff.
+//
+// Unified diffs are a compact way of showing line changes and a few
+// lines of context.  The number of context lines is set by 'n' which
+// defaults to three.
+//
+// By default, the diff control lines (those with ---, +++, or @@) are
+// created with a trailing newline.  This is helpful so that inputs
+// created from file.readlines() result in diffs that are suitable for
+// file.writelines() since both the inputs and outputs have trailing
+// newlines.
+//
+// For inputs that do not have trailing newlines, set the lineterm
+// argument to "" so that the output will be uniformly newline free.
+//
+// The unidiff format normally has a header for filenames and modification
+// times.  Any or all of these may be specified using strings for
+// 'fromfile', 'tofile', 'fromfiledate', and 'tofiledate'.
+// The modification times are normally expressed in the ISO 8601 format.
+func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error {
+	buf := bufio.NewWriter(writer)
+	defer buf.Flush()
+	wf := func(format string, args ...interface{}) error {
+		_, err := buf.WriteString(fmt.Sprintf(format, args...))
+		return err
+	}
+	ws := func(s string) error {
+		_, err := buf.WriteString(s)
+		return err
+	}
+
+	if len(diff.Eol) == 0 {
+		diff.Eol = "\n"
+	}
+
+	started := false
+	m := NewMatcher(diff.A, diff.B)
+	for _, g := range m.GetGroupedOpCodes(diff.Context) {
+		if !started {
+			started = true
+			fromDate := ""
+			if len(diff.FromDate) > 0 {
+				fromDate = "\t" + diff.FromDate
+			}
+			toDate := ""
+			if len(diff.ToDate) > 0 {
+				toDate = "\t" + diff.ToDate
+			}
+			if diff.FromFile != "" || diff.ToFile != "" {
+				err := wf("--- %s%s%s", diff.FromFile, fromDate, diff.Eol)
+				if err != nil {
+					return err
+				}
+				err = wf("+++ %s%s%s", diff.ToFile, toDate, diff.Eol)
+				if err != nil {
+					return err
+				}
+			}
+		}
+		first, last := g[0], g[len(g)-1]
+		range1 := formatRangeUnified(first.I1, last.I2)
+		range2 := formatRangeUnified(first.J1, last.J2)
+		if err := wf("@@ -%s +%s @@%s", range1, range2, diff.Eol); err != nil {
+			return err
+		}
+		for _, c := range g {
+			i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
+			if c.Tag == 'e' {
+				for _, line := range diff.A[i1:i2] {
+					if err := ws(" " + line); err != nil {
+						return err
+					}
+				}
+				continue
+			}
+			if c.Tag == 'r' || c.Tag == 'd' {
+				for _, line := range diff.A[i1:i2] {
+					if err := ws("-" + line); err != nil {
+						return err
+					}
+				}
+			}
+			if c.Tag == 'r' || c.Tag == 'i' {
+				for _, line := range diff.B[j1:j2] {
+					if err := ws("+" + line); err != nil {
+						return err
+					}
+				}
+			}
+		}
+	}
+	return nil
+}
+
+// Like WriteUnifiedDiff but returns the diff a string.
+func GetUnifiedDiffString(diff UnifiedDiff) (string, error) {
+	w := &bytes.Buffer{}
+	err := WriteUnifiedDiff(w, diff)
+	return string(w.Bytes()), err
+}
+
+// Convert range to the "ed" format.
+func formatRangeContext(start, stop int) string {
+	// Per the diff spec at http://www.unix.org/single_unix_specification/
+	beginning := start + 1 // lines start numbering with one
+	length := stop - start
+	if length == 0 {
+		beginning -= 1 // empty ranges begin at line just before the range
+	}
+	if length <= 1 {
+		return fmt.Sprintf("%d", beginning)
+	}
+	return fmt.Sprintf("%d,%d", beginning, beginning+length-1)
+}
+
+type ContextDiff UnifiedDiff
+
+// Compare two sequences of lines; generate the delta as a context diff.
+//
+// Context diffs are a compact way of showing line changes and a few
+// lines of context. The number of context lines is set by diff.Context
+// which defaults to three.
+//
+// By default, the diff control lines (those with *** or ---) are
+// created with a trailing newline.
+//
+// For inputs that do not have trailing newlines, set the diff.Eol
+// argument to "" so that the output will be uniformly newline free.
+//
+// The context diff format normally has a header for filenames and
+// modification times.  Any or all of these may be specified using
+// strings for diff.FromFile, diff.ToFile, diff.FromDate, diff.ToDate.
+// The modification times are normally expressed in the ISO 8601 format.
+// If not specified, the strings default to blanks.
+func WriteContextDiff(writer io.Writer, diff ContextDiff) error {
+	buf := bufio.NewWriter(writer)
+	defer buf.Flush()
+	var diffErr error
+	wf := func(format string, args ...interface{}) {
+		_, err := buf.WriteString(fmt.Sprintf(format, args...))
+		if diffErr == nil && err != nil {
+			diffErr = err
+		}
+	}
+	ws := func(s string) {
+		_, err := buf.WriteString(s)
+		if diffErr == nil && err != nil {
+			diffErr = err
+		}
+	}
+
+	if len(diff.Eol) == 0 {
+		diff.Eol = "\n"
+	}
+
+	prefix := map[byte]string{
+		'i': "+ ",
+		'd': "- ",
+		'r': "! ",
+		'e': "  ",
+	}
+
+	started := false
+	m := NewMatcher(diff.A, diff.B)
+	for _, g := range m.GetGroupedOpCodes(diff.Context) {
+		if !started {
+			started = true
+			fromDate := ""
+			if len(diff.FromDate) > 0 {
+				fromDate = "\t" + diff.FromDate
+			}
+			toDate := ""
+			if len(diff.ToDate) > 0 {
+				toDate = "\t" + diff.ToDate
+			}
+			if diff.FromFile != "" || diff.ToFile != "" {
+				wf("*** %s%s%s", diff.FromFile, fromDate, diff.Eol)
+				wf("--- %s%s%s", diff.ToFile, toDate, diff.Eol)
+			}
+		}
+
+		first, last := g[0], g[len(g)-1]
+		ws("***************" + diff.Eol)
+
+		range1 := formatRangeContext(first.I1, last.I2)
+		wf("*** %s ****%s", range1, diff.Eol)
+		for _, c := range g {
+			if c.Tag == 'r' || c.Tag == 'd' {
+				for _, cc := range g {
+					if cc.Tag == 'i' {
+						continue
+					}
+					for _, line := range diff.A[cc.I1:cc.I2] {
+						ws(prefix[cc.Tag] + line)
+					}
+				}
+				break
+			}
+		}
+
+		range2 := formatRangeContext(first.J1, last.J2)
+		wf("--- %s ----%s", range2, diff.Eol)
+		for _, c := range g {
+			if c.Tag == 'r' || c.Tag == 'i' {
+				for _, cc := range g {
+					if cc.Tag == 'd' {
+						continue
+					}
+					for _, line := range diff.B[cc.J1:cc.J2] {
+						ws(prefix[cc.Tag] + line)
+					}
+				}
+				break
+			}
+		}
+	}
+	return diffErr
+}
+
+// Like WriteContextDiff but returns the diff a string.
+func GetContextDiffString(diff ContextDiff) (string, error) {
+	w := &bytes.Buffer{}
+	err := WriteContextDiff(w, diff)
+	return string(w.Bytes()), err
+}
+
+// Split a string on "\n" while preserving them. The output can be used
+// as input for UnifiedDiff and ContextDiff structures.
+func SplitLines(s string) []string {
+	lines := strings.SplitAfter(s, "\n")
+	lines[len(lines)-1] += "\n"
+	return lines
+}
diff --git a/vendor/github.com/pmezard/go-difflib/difflib/difflib_test.go b/vendor/github.com/pmezard/go-difflib/difflib/difflib_test.go
new file mode 100644
index 0000000..d725119
--- /dev/null
+++ b/vendor/github.com/pmezard/go-difflib/difflib/difflib_test.go
@@ -0,0 +1,426 @@
+package difflib
+
+import (
+	"bytes"
+	"fmt"
+	"math"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+func assertAlmostEqual(t *testing.T, a, b float64, places int) {
+	if math.Abs(a-b) > math.Pow10(-places) {
+		t.Errorf("%.7f != %.7f", a, b)
+	}
+}
+
+func assertEqual(t *testing.T, a, b interface{}) {
+	if !reflect.DeepEqual(a, b) {
+		t.Errorf("%v != %v", a, b)
+	}
+}
+
+func splitChars(s string) []string {
+	chars := make([]string, 0, len(s))
+	// Assume ASCII inputs
+	for i := 0; i != len(s); i++ {
+		chars = append(chars, string(s[i]))
+	}
+	return chars
+}
+
+func TestSequenceMatcherRatio(t *testing.T) {
+	s := NewMatcher(splitChars("abcd"), splitChars("bcde"))
+	assertEqual(t, s.Ratio(), 0.75)
+	assertEqual(t, s.QuickRatio(), 0.75)
+	assertEqual(t, s.RealQuickRatio(), 1.0)
+}
+
+func TestGetOptCodes(t *testing.T) {
+	a := "qabxcd"
+	b := "abycdf"
+	s := NewMatcher(splitChars(a), splitChars(b))
+	w := &bytes.Buffer{}
+	for _, op := range s.GetOpCodes() {
+		fmt.Fprintf(w, "%s a[%d:%d], (%s) b[%d:%d] (%s)\n", string(op.Tag),
+			op.I1, op.I2, a[op.I1:op.I2], op.J1, op.J2, b[op.J1:op.J2])
+	}
+	result := string(w.Bytes())
+	expected := `d a[0:1], (q) b[0:0] ()
+e a[1:3], (ab) b[0:2] (ab)
+r a[3:4], (x) b[2:3] (y)
+e a[4:6], (cd) b[3:5] (cd)
+i a[6:6], () b[5:6] (f)
+`
+	if expected != result {
+		t.Errorf("unexpected op codes: \n%s", result)
+	}
+}
+
+func TestGroupedOpCodes(t *testing.T) {
+	a := []string{}
+	for i := 0; i != 39; i++ {
+		a = append(a, fmt.Sprintf("%02d", i))
+	}
+	b := []string{}
+	b = append(b, a[:8]...)
+	b = append(b, " i")
+	b = append(b, a[8:19]...)
+	b = append(b, " x")
+	b = append(b, a[20:22]...)
+	b = append(b, a[27:34]...)
+	b = append(b, " y")
+	b = append(b, a[35:]...)
+	s := NewMatcher(a, b)
+	w := &bytes.Buffer{}
+	for _, g := range s.GetGroupedOpCodes(-1) {
+		fmt.Fprintf(w, "group\n")
+		for _, op := range g {
+			fmt.Fprintf(w, "  %s, %d, %d, %d, %d\n", string(op.Tag),
+				op.I1, op.I2, op.J1, op.J2)
+		}
+	}
+	result := string(w.Bytes())
+	expected := `group
+  e, 5, 8, 5, 8
+  i, 8, 8, 8, 9
+  e, 8, 11, 9, 12
+group
+  e, 16, 19, 17, 20
+  r, 19, 20, 20, 21
+  e, 20, 22, 21, 23
+  d, 22, 27, 23, 23
+  e, 27, 30, 23, 26
+group
+  e, 31, 34, 27, 30
+  r, 34, 35, 30, 31
+  e, 35, 38, 31, 34
+`
+	if expected != result {
+		t.Errorf("unexpected op codes: \n%s", result)
+	}
+}
+
+func ExampleGetUnifiedDiffCode() {
+	a := `one
+two
+three
+four
+fmt.Printf("%s,%T",a,b)`
+	b := `zero
+one
+three
+four`
+	diff := UnifiedDiff{
+		A:        SplitLines(a),
+		B:        SplitLines(b),
+		FromFile: "Original",
+		FromDate: "2005-01-26 23:30:50",
+		ToFile:   "Current",
+		ToDate:   "2010-04-02 10:20:52",
+		Context:  3,
+	}
+	result, _ := GetUnifiedDiffString(diff)
+	fmt.Println(strings.Replace(result, "\t", " ", -1))
+	// Output:
+	// --- Original 2005-01-26 23:30:50
+	// +++ Current 2010-04-02 10:20:52
+	// @@ -1,5 +1,4 @@
+	// +zero
+	//  one
+	// -two
+	//  three
+	//  four
+	// -fmt.Printf("%s,%T",a,b)
+}
+
+func ExampleGetContextDiffCode() {
+	a := `one
+two
+three
+four
+fmt.Printf("%s,%T",a,b)`
+	b := `zero
+one
+tree
+four`
+	diff := ContextDiff{
+		A:        SplitLines(a),
+		B:        SplitLines(b),
+		FromFile: "Original",
+		ToFile:   "Current",
+		Context:  3,
+		Eol:      "\n",
+	}
+	result, _ := GetContextDiffString(diff)
+	fmt.Print(strings.Replace(result, "\t", " ", -1))
+	// Output:
+	// *** Original
+	// --- Current
+	// ***************
+	// *** 1,5 ****
+	//   one
+	// ! two
+	// ! three
+	//   four
+	// - fmt.Printf("%s,%T",a,b)
+	// --- 1,4 ----
+	// + zero
+	//   one
+	// ! tree
+	//   four
+}
+
+func ExampleGetContextDiffString() {
+	a := `one
+two
+three
+four`
+	b := `zero
+one
+tree
+four`
+	diff := ContextDiff{
+		A:        SplitLines(a),
+		B:        SplitLines(b),
+		FromFile: "Original",
+		ToFile:   "Current",
+		Context:  3,
+		Eol:      "\n",
+	}
+	result, _ := GetContextDiffString(diff)
+	fmt.Printf(strings.Replace(result, "\t", " ", -1))
+	// Output:
+	// *** Original
+	// --- Current
+	// ***************
+	// *** 1,4 ****
+	//   one
+	// ! two
+	// ! three
+	//   four
+	// --- 1,4 ----
+	// + zero
+	//   one
+	// ! tree
+	//   four
+}
+
+func rep(s string, count int) string {
+	return strings.Repeat(s, count)
+}
+
+func TestWithAsciiOneInsert(t *testing.T) {
+	sm := NewMatcher(splitChars(rep("b", 100)),
+		splitChars("a"+rep("b", 100)))
+	assertAlmostEqual(t, sm.Ratio(), 0.995, 3)
+	assertEqual(t, sm.GetOpCodes(),
+		[]OpCode{{'i', 0, 0, 0, 1}, {'e', 0, 100, 1, 101}})
+	assertEqual(t, len(sm.bPopular), 0)
+
+	sm = NewMatcher(splitChars(rep("b", 100)),
+		splitChars(rep("b", 50)+"a"+rep("b", 50)))
+	assertAlmostEqual(t, sm.Ratio(), 0.995, 3)
+	assertEqual(t, sm.GetOpCodes(),
+		[]OpCode{{'e', 0, 50, 0, 50}, {'i', 50, 50, 50, 51}, {'e', 50, 100, 51, 101}})
+	assertEqual(t, len(sm.bPopular), 0)
+}
+
+func TestWithAsciiOnDelete(t *testing.T) {
+	sm := NewMatcher(splitChars(rep("a", 40)+"c"+rep("b", 40)),
+		splitChars(rep("a", 40)+rep("b", 40)))
+	assertAlmostEqual(t, sm.Ratio(), 0.994, 3)
+	assertEqual(t, sm.GetOpCodes(),
+		[]OpCode{{'e', 0, 40, 0, 40}, {'d', 40, 41, 40, 40}, {'e', 41, 81, 40, 80}})
+}
+
+func TestWithAsciiBJunk(t *testing.T) {
+	isJunk := func(s string) bool {
+		return s == " "
+	}
+	sm := NewMatcherWithJunk(splitChars(rep("a", 40)+rep("b", 40)),
+		splitChars(rep("a", 44)+rep("b", 40)), true, isJunk)
+	assertEqual(t, sm.bJunk, map[string]struct{}{})
+
+	sm = NewMatcherWithJunk(splitChars(rep("a", 40)+rep("b", 40)),
+		splitChars(rep("a", 44)+rep("b", 40)+rep(" ", 20)), false, isJunk)
+	assertEqual(t, sm.bJunk, map[string]struct{}{" ": struct{}{}})
+
+	isJunk = func(s string) bool {
+		return s == " " || s == "b"
+	}
+	sm = NewMatcherWithJunk(splitChars(rep("a", 40)+rep("b", 40)),
+		splitChars(rep("a", 44)+rep("b", 40)+rep(" ", 20)), false, isJunk)
+	assertEqual(t, sm.bJunk, map[string]struct{}{" ": struct{}{}, "b": struct{}{}})
+}
+
+func TestSFBugsRatioForNullSeqn(t *testing.T) {
+	sm := NewMatcher(nil, nil)
+	assertEqual(t, sm.Ratio(), 1.0)
+	assertEqual(t, sm.QuickRatio(), 1.0)
+	assertEqual(t, sm.RealQuickRatio(), 1.0)
+}
+
+func TestSFBugsComparingEmptyLists(t *testing.T) {
+	groups := NewMatcher(nil, nil).GetGroupedOpCodes(-1)
+	assertEqual(t, len(groups), 0)
+	diff := UnifiedDiff{
+		FromFile: "Original",
+		ToFile:   "Current",
+		Context:  3,
+	}
+	result, err := GetUnifiedDiffString(diff)
+	assertEqual(t, err, nil)
+	assertEqual(t, result, "")
+}
+
+func TestOutputFormatRangeFormatUnified(t *testing.T) {
+	// Per the diff spec at http://www.unix.org/single_unix_specification/
+	//
+	// Each <range> field shall be of the form:
+	//   %1d", <beginning line number>  if the range contains exactly one line,
+	// and:
+	//  "%1d,%1d", <beginning line number>, <number of lines> otherwise.
+	// If a range is empty, its beginning line number shall be the number of
+	// the line just before the range, or 0 if the empty range starts the file.
+	fm := formatRangeUnified
+	assertEqual(t, fm(3, 3), "3,0")
+	assertEqual(t, fm(3, 4), "4")
+	assertEqual(t, fm(3, 5), "4,2")
+	assertEqual(t, fm(3, 6), "4,3")
+	assertEqual(t, fm(0, 0), "0,0")
+}
+
+func TestOutputFormatRangeFormatContext(t *testing.T) {
+	// Per the diff spec at http://www.unix.org/single_unix_specification/
+	//
+	// The range of lines in file1 shall be written in the following format
+	// if the range contains two or more lines:
+	//     "*** %d,%d ****\n", <beginning line number>, <ending line number>
+	// and the following format otherwise:
+	//     "*** %d ****\n", <ending line number>
+	// The ending line number of an empty range shall be the number of the preceding line,
+	// or 0 if the range is at the start of the file.
+	//
+	// Next, the range of lines in file2 shall be written in the following format
+	// if the range contains two or more lines:
+	//     "--- %d,%d ----\n", <beginning line number>, <ending line number>
+	// and the following format otherwise:
+	//     "--- %d ----\n", <ending line number>
+	fm := formatRangeContext
+	assertEqual(t, fm(3, 3), "3")
+	assertEqual(t, fm(3, 4), "4")
+	assertEqual(t, fm(3, 5), "4,5")
+	assertEqual(t, fm(3, 6), "4,6")
+	assertEqual(t, fm(0, 0), "0")
+}
+
+func TestOutputFormatTabDelimiter(t *testing.T) {
+	diff := UnifiedDiff{
+		A:        splitChars("one"),
+		B:        splitChars("two"),
+		FromFile: "Original",
+		FromDate: "2005-01-26 23:30:50",
+		ToFile:   "Current",
+		ToDate:   "2010-04-12 10:20:52",
+		Eol:      "\n",
+	}
+	ud, err := GetUnifiedDiffString(diff)
+	assertEqual(t, err, nil)
+	assertEqual(t, SplitLines(ud)[:2], []string{
+		"--- Original\t2005-01-26 23:30:50\n",
+		"+++ Current\t2010-04-12 10:20:52\n",
+	})
+	cd, err := GetContextDiffString(ContextDiff(diff))
+	assertEqual(t, err, nil)
+	assertEqual(t, SplitLines(cd)[:2], []string{
+		"*** Original\t2005-01-26 23:30:50\n",
+		"--- Current\t2010-04-12 10:20:52\n",
+	})
+}
+
+func TestOutputFormatNoTrailingTabOnEmptyFiledate(t *testing.T) {
+	diff := UnifiedDiff{
+		A:        splitChars("one"),
+		B:        splitChars("two"),
+		FromFile: "Original",
+		ToFile:   "Current",
+		Eol:      "\n",
+	}
+	ud, err := GetUnifiedDiffString(diff)
+	assertEqual(t, err, nil)
+	assertEqual(t, SplitLines(ud)[:2], []string{"--- Original\n", "+++ Current\n"})
+
+	cd, err := GetContextDiffString(ContextDiff(diff))
+	assertEqual(t, err, nil)
+	assertEqual(t, SplitLines(cd)[:2], []string{"*** Original\n", "--- Current\n"})
+}
+
+func TestOmitFilenames(t *testing.T) {
+	diff := UnifiedDiff{
+		A:   SplitLines("o\nn\ne\n"),
+		B:   SplitLines("t\nw\no\n"),
+		Eol: "\n",
+	}
+	ud, err := GetUnifiedDiffString(diff)
+	assertEqual(t, err, nil)
+	assertEqual(t, SplitLines(ud), []string{
+		"@@ -0,0 +1,2 @@\n",
+		"+t\n",
+		"+w\n",
+		"@@ -2,2 +3,0 @@\n",
+		"-n\n",
+		"-e\n",
+		"\n",
+	})
+
+	cd, err := GetContextDiffString(ContextDiff(diff))
+	assertEqual(t, err, nil)
+	assertEqual(t, SplitLines(cd), []string{
+		"***************\n",
+		"*** 0 ****\n",
+		"--- 1,2 ----\n",
+		"+ t\n",
+		"+ w\n",
+		"***************\n",
+		"*** 2,3 ****\n",
+		"- n\n",
+		"- e\n",
+		"--- 3 ----\n",
+		"\n",
+	})
+}
+
+func TestSplitLines(t *testing.T) {
+	allTests := []struct {
+		input string
+		want  []string
+	}{
+		{"foo", []string{"foo\n"}},
+		{"foo\nbar", []string{"foo\n", "bar\n"}},
+		{"foo\nbar\n", []string{"foo\n", "bar\n", "\n"}},
+	}
+	for _, test := range allTests {
+		assertEqual(t, SplitLines(test.input), test.want)
+	}
+}
+
+func benchmarkSplitLines(b *testing.B, count int) {
+	str := strings.Repeat("foo\n", count)
+
+	b.ResetTimer()
+
+	n := 0
+	for i := 0; i < b.N; i++ {
+		n += len(SplitLines(str))
+	}
+}
+
+func BenchmarkSplitLines100(b *testing.B) {
+	benchmarkSplitLines(b, 100)
+}
+
+func BenchmarkSplitLines10000(b *testing.B) {
+	benchmarkSplitLines(b, 10000)
+}
diff --git a/vendor/github.com/stretchr/testify/.gitignore b/vendor/github.com/stretchr/testify/.gitignore
new file mode 100644
index 0000000..5aacdb7
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/.gitignore
@@ -0,0 +1,24 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+
+.DS_Store
diff --git a/vendor/github.com/stretchr/testify/.travis.yml b/vendor/github.com/stretchr/testify/.travis.yml
new file mode 100644
index 0000000..ffb9e0d
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/.travis.yml
@@ -0,0 +1,16 @@
+language: go
+
+sudo: false
+
+go:
+  - 1.1
+  - 1.2
+  - 1.3
+  - 1.4
+  - 1.5
+  - 1.6
+  - 1.7
+  - tip
+
+script:
+  - go test -v ./...
diff --git a/vendor/github.com/stretchr/testify/LICENCE.txt b/vendor/github.com/stretchr/testify/LICENCE.txt
new file mode 100644
index 0000000..473b670
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/LICENCE.txt
@@ -0,0 +1,22 @@
+Copyright (c) 2012 - 2013 Mat Ryer and Tyler Bunnell
+
+Please consider promoting this project if you find it useful.
+
+Permission is hereby granted, free of charge, to any person 
+obtaining a copy of this software and associated documentation 
+files (the "Software"), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, 
+publish, distribute, sublicense, and/or sell copies of the Software, 
+and to permit persons to whom the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT 
+OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/stretchr/testify/LICENSE b/vendor/github.com/stretchr/testify/LICENSE
new file mode 100644
index 0000000..473b670
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/LICENSE
@@ -0,0 +1,22 @@
+Copyright (c) 2012 - 2013 Mat Ryer and Tyler Bunnell
+
+Please consider promoting this project if you find it useful.
+
+Permission is hereby granted, free of charge, to any person 
+obtaining a copy of this software and associated documentation 
+files (the "Software"), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, 
+publish, distribute, sublicense, and/or sell copies of the Software, 
+and to permit persons to whom the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT 
+OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/stretchr/testify/README.md b/vendor/github.com/stretchr/testify/README.md
new file mode 100644
index 0000000..e57b181
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/README.md
@@ -0,0 +1,332 @@
+Testify - Thou Shalt Write Tests
+================================
+
+[![Build Status](https://travis-ci.org/stretchr/testify.svg)](https://travis-ci.org/stretchr/testify) [![Go Report Card](https://goreportcard.com/badge/github.com/stretchr/testify)](https://goreportcard.com/report/github.com/stretchr/testify) [![GoDoc](https://godoc.org/github.com/stretchr/testify?status.svg)](https://godoc.org/github.com/stretchr/testify)
+
+Go code (golang) set of packages that provide many tools for testifying that your code will behave as you intend.
+
+Features include:
+
+  * [Easy assertions](#assert-package)
+  * [Mocking](#mock-package)
+  * [HTTP response trapping](#http-package)
+  * [Testing suite interfaces and functions](#suite-package)
+
+Get started:
+
+  * Install testify with [one line of code](#installation), or [update it with another](#staying-up-to-date)
+  * For an introduction to writing test code in Go, see http://golang.org/doc/code.html#Testing
+  * Check out the API Documentation http://godoc.org/github.com/stretchr/testify
+  * To make your testing life easier, check out our other project, [gorc](http://github.com/stretchr/gorc)
+  * A little about [Test-Driven Development (TDD)](http://en.wikipedia.org/wiki/Test-driven_development)
+
+
+
+[`assert`](http://godoc.org/github.com/stretchr/testify/assert "API documentation") package
+-------------------------------------------------------------------------------------------
+
+The `assert` package provides some helpful methods that allow you to write better test code in Go.
+
+  * Prints friendly, easy to read failure descriptions
+  * Allows for very readable code
+  * Optionally annotate each assertion with a message
+
+See it in action:
+
+```go
+package yours
+
+import (
+  "testing"
+  "github.com/stretchr/testify/assert"
+)
+
+func TestSomething(t *testing.T) {
+
+  // assert equality
+  assert.Equal(t, 123, 123, "they should be equal")
+
+  // assert inequality
+  assert.NotEqual(t, 123, 456, "they should not be equal")
+
+  // assert for nil (good for errors)
+  assert.Nil(t, object)
+
+  // assert for not nil (good when you expect something)
+  if assert.NotNil(t, object) {
+
+    // now we know that object isn't nil, we are safe to make
+    // further assertions without causing any errors
+    assert.Equal(t, "Something", object.Value)
+
+  }
+
+}
+```
+
+  * Every assert func takes the `testing.T` object as the first argument.  This is how it writes the errors out through the normal `go test` capabilities.
+  * Every assert func returns a bool indicating whether the assertion was successful or not, this is useful for if you want to go on making further assertions under certain conditions.
+
+if you assert many times, use the below:
+
+```go
+package yours
+
+import (
+  "testing"
+  "github.com/stretchr/testify/assert"
+)
+
+func TestSomething(t *testing.T) {
+  assert := assert.New(t)
+
+  // assert equality
+  assert.Equal(123, 123, "they should be equal")
+
+  // assert inequality
+  assert.NotEqual(123, 456, "they should not be equal")
+
+  // assert for nil (good for errors)
+  assert.Nil(object)
+
+  // assert for not nil (good when you expect something)
+  if assert.NotNil(object) {
+
+    // now we know that object isn't nil, we are safe to make
+    // further assertions without causing any errors
+    assert.Equal("Something", object.Value)
+  }
+}
+```
+
+[`require`](http://godoc.org/github.com/stretchr/testify/require "API documentation") package
+---------------------------------------------------------------------------------------------
+
+The `require` package provides same global functions as the `assert` package, but instead of returning a boolean result they terminate current test.
+
+See [t.FailNow](http://golang.org/pkg/testing/#T.FailNow) for details.
+
+
+[`http`](http://godoc.org/github.com/stretchr/testify/http "API documentation") package
+---------------------------------------------------------------------------------------
+
+The `http` package contains test objects useful for testing code that relies on the `net/http` package.  Check out the [(deprecated) API documentation for the `http` package](http://godoc.org/github.com/stretchr/testify/http).
+
+We recommend you use [httptest](http://golang.org/pkg/net/http/httptest) instead.
+
+[`mock`](http://godoc.org/github.com/stretchr/testify/mock "API documentation") package
+----------------------------------------------------------------------------------------
+
+The `mock` package provides a mechanism for easily writing mock objects that can be used in place of real objects when writing test code.
+
+An example test function that tests a piece of code that relies on an external object `testObj`, can setup expectations (testify) and assert that they indeed happened:
+
+```go
+package yours
+
+import (
+  "testing"
+  "github.com/stretchr/testify/mock"
+)
+
+/*
+  Test objects
+*/
+
+// MyMockedObject is a mocked object that implements an interface
+// that describes an object that the code I am testing relies on.
+type MyMockedObject struct{
+  mock.Mock
+}
+
+// DoSomething is a method on MyMockedObject that implements some interface
+// and just records the activity, and returns what the Mock object tells it to.
+//
+// In the real object, this method would do something useful, but since this
+// is a mocked object - we're just going to stub it out.
+//
+// NOTE: This method is not being tested here, code that uses this object is.
+func (m *MyMockedObject) DoSomething(number int) (bool, error) {
+
+  args := m.Called(number)
+  return args.Bool(0), args.Error(1)
+
+}
+
+/*
+  Actual test functions
+*/
+
+// TestSomething is an example of how to use our test object to
+// make assertions about some target code we are testing.
+func TestSomething(t *testing.T) {
+
+  // create an instance of our test object
+  testObj := new(MyMockedObject)
+
+  // setup expectations
+  testObj.On("DoSomething", 123).Return(true, nil)
+
+  // call the code we are testing
+  targetFuncThatDoesSomethingWithObj(testObj)
+
+  // assert that the expectations were met
+  testObj.AssertExpectations(t)
+
+}
+```
+
+For more information on how to write mock code, check out the [API documentation for the `mock` package](http://godoc.org/github.com/stretchr/testify/mock).
+
+You can use the [mockery tool](http://github.com/vektra/mockery) to autogenerate the mock code against an interface as well, making using mocks much quicker.
+
+[`suite`](http://godoc.org/github.com/stretchr/testify/suite "API documentation") package
+-----------------------------------------------------------------------------------------
+
+The `suite` package provides functionality that you might be used to from more common object oriented languages.  With it, you can build a testing suite as a struct, build setup/teardown methods and testing methods on your struct, and run them with 'go test' as per normal.
+
+An example suite is shown below:
+
+```go
+// Basic imports
+import (
+    "testing"
+    "github.com/stretchr/testify/assert"
+    "github.com/stretchr/testify/suite"
+)
+
+// Define the suite, and absorb the built-in basic suite
+// functionality from testify - including a T() method which
+// returns the current testing context
+type ExampleTestSuite struct {
+    suite.Suite
+    VariableThatShouldStartAtFive int
+}
+
+// Make sure that VariableThatShouldStartAtFive is set to five
+// before each test
+func (suite *ExampleTestSuite) SetupTest() {
+    suite.VariableThatShouldStartAtFive = 5
+}
+
+// All methods that begin with "Test" are run as tests within a
+// suite.
+func (suite *ExampleTestSuite) TestExample() {
+    assert.Equal(suite.T(), 5, suite.VariableThatShouldStartAtFive)
+}
+
+// In order for 'go test' to run this suite, we need to create
+// a normal test function and pass our suite to suite.Run
+func TestExampleTestSuite(t *testing.T) {
+    suite.Run(t, new(ExampleTestSuite))
+}
+```
+
+For a more complete example, using all of the functionality provided by the suite package, look at our [example testing suite](https://github.com/stretchr/testify/blob/master/suite/suite_test.go)
+
+For more information on writing suites, check out the [API documentation for the `suite` package](http://godoc.org/github.com/stretchr/testify/suite).
+
+`Suite` object has assertion methods:
+
+```go
+// Basic imports
+import (
+    "testing"
+    "github.com/stretchr/testify/suite"
+)
+
+// Define the suite, and absorb the built-in basic suite
+// functionality from testify - including assertion methods.
+type ExampleTestSuite struct {
+    suite.Suite
+    VariableThatShouldStartAtFive int
+}
+
+// Make sure that VariableThatShouldStartAtFive is set to five
+// before each test
+func (suite *ExampleTestSuite) SetupTest() {
+    suite.VariableThatShouldStartAtFive = 5
+}
+
+// All methods that begin with "Test" are run as tests within a
+// suite.
+func (suite *ExampleTestSuite) TestExample() {
+    suite.Equal(suite.VariableThatShouldStartAtFive, 5)
+}
+
+// In order for 'go test' to run this suite, we need to create
+// a normal test function and pass our suite to suite.Run
+func TestExampleTestSuite(t *testing.T) {
+    suite.Run(t, new(ExampleTestSuite))
+}
+```
+
+------
+
+Installation
+============
+
+To install Testify, use `go get`:
+
+    * Latest version: go get github.com/stretchr/testify
+    * Specific version: go get gopkg.in/stretchr/testify.v1
+
+This will then make the following packages available to you:
+
+    github.com/stretchr/testify/assert
+    github.com/stretchr/testify/mock
+    github.com/stretchr/testify/http
+
+Import the `testify/assert` package into your code using this template:
+
+```go
+package yours
+
+import (
+  "testing"
+  "github.com/stretchr/testify/assert"
+)
+
+func TestSomething(t *testing.T) {
+
+  assert.True(t, true, "True is true!")
+
+}
+```
+
+------
+
+Staying up to date
+==================
+
+To update Testify to the latest version, use `go get -u github.com/stretchr/testify`.
+
+------
+
+Version History
+===============
+
+   * 1.0 - New package versioning strategy adopted.
+
+------
+
+Contributing
+============
+
+Please feel free to submit issues, fork the repository and send pull requests!
+
+When submitting an issue, we ask that you please include a complete test function that demonstrates the issue.  Extra credit for those using Testify to write the test code that demonstrates it.
+
+------
+
+Licence
+=======
+Copyright (c) 2012 - 2013 Mat Ryer and Tyler Bunnell
+
+Please consider promoting this project if you find it useful.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/github.com/stretchr/testify/assert/assertion_forward.go b/vendor/github.com/stretchr/testify/assert/assertion_forward.go
new file mode 100644
index 0000000..e6a7960
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/assertion_forward.go
@@ -0,0 +1,387 @@
+/*
+* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
+* THIS FILE MUST NOT BE EDITED BY HAND
+*/
+
+package assert
+
+import (
+
+	http "net/http"
+	url "net/url"
+	time "time"
+)
+
+
+// Condition uses a Comparison to assert a complex condition.
+func (a *Assertions) Condition(comp Comparison, msgAndArgs ...interface{}) bool {
+	return Condition(a.t, comp, msgAndArgs...)
+}
+
+
+// Contains asserts that the specified string, list(array, slice...) or map contains the
+// specified substring or element.
+// 
+//    a.Contains("Hello World", "World", "But 'Hello World' does contain 'World'")
+//    a.Contains(["Hello", "World"], "World", "But ["Hello", "World"] does contain 'World'")
+//    a.Contains({"Hello": "World"}, "Hello", "But {'Hello': 'World'} does contain 'Hello'")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
+	return Contains(a.t, s, contains, msgAndArgs...)
+}
+
+
+// Empty asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
+// a slice or a channel with len == 0.
+// 
+//  a.Empty(obj)
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{}) bool {
+	return Empty(a.t, object, msgAndArgs...)
+}
+
+
+// Equal asserts that two objects are equal.
+// 
+//    a.Equal(123, 123, "123 and 123 should be equal")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	return Equal(a.t, expected, actual, msgAndArgs...)
+}
+
+
+// EqualError asserts that a function returned an error (i.e. not `nil`)
+// and that it is equal to the provided error.
+// 
+//   actualObj, err := SomeFunction()
+//   if assert.Error(t, err, "An error was expected") {
+// 	   assert.Equal(t, err, expectedError)
+//   }
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...interface{}) bool {
+	return EqualError(a.t, theError, errString, msgAndArgs...)
+}
+
+
+// EqualValues asserts that two objects are equal or convertable to the same types
+// and equal.
+// 
+//    a.EqualValues(uint32(123), int32(123), "123 and 123 should be equal")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	return EqualValues(a.t, expected, actual, msgAndArgs...)
+}
+
+
+// Error asserts that a function returned an error (i.e. not `nil`).
+// 
+//   actualObj, err := SomeFunction()
+//   if a.Error(err, "An error was expected") {
+// 	   assert.Equal(t, err, expectedError)
+//   }
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Error(err error, msgAndArgs ...interface{}) bool {
+	return Error(a.t, err, msgAndArgs...)
+}
+
+
+// Exactly asserts that two objects are equal is value and type.
+// 
+//    a.Exactly(int32(123), int64(123), "123 and 123 should NOT be equal")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	return Exactly(a.t, expected, actual, msgAndArgs...)
+}
+
+
+// Fail reports a failure through
+func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{}) bool {
+	return Fail(a.t, failureMessage, msgAndArgs...)
+}
+
+
+// FailNow fails test
+func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{}) bool {
+	return FailNow(a.t, failureMessage, msgAndArgs...)
+}
+
+
+// False asserts that the specified value is false.
+// 
+//    a.False(myBool, "myBool should be false")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) False(value bool, msgAndArgs ...interface{}) bool {
+	return False(a.t, value, msgAndArgs...)
+}
+
+
+// HTTPBodyContains asserts that a specified handler returns a
+// body that contains a string.
+// 
+//  a.HTTPBodyContains(myHandler, "www.google.com", nil, "I'm Feeling Lucky")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) HTTPBodyContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}) bool {
+	return HTTPBodyContains(a.t, handler, method, url, values, str)
+}
+
+
+// HTTPBodyNotContains asserts that a specified handler returns a
+// body that does not contain a string.
+// 
+//  a.HTTPBodyNotContains(myHandler, "www.google.com", nil, "I'm Feeling Lucky")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) HTTPBodyNotContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}) bool {
+	return HTTPBodyNotContains(a.t, handler, method, url, values, str)
+}
+
+
+// HTTPError asserts that a specified handler returns an error status code.
+// 
+//  a.HTTPError(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPError(a.t, handler, method, url, values)
+}
+
+
+// HTTPRedirect asserts that a specified handler returns a redirect status code.
+// 
+//  a.HTTPRedirect(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPRedirect(a.t, handler, method, url, values)
+}
+
+
+// HTTPSuccess asserts that a specified handler returns a success status code.
+// 
+//  a.HTTPSuccess(myHandler, "POST", "http://www.google.com", nil)
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPSuccess(a.t, handler, method, url, values)
+}
+
+
+// Implements asserts that an object is implemented by the specified interface.
+// 
+//    a.Implements((*MyInterface)(nil), new(MyObject), "MyObject")
+func (a *Assertions) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
+	return Implements(a.t, interfaceObject, object, msgAndArgs...)
+}
+
+
+// InDelta asserts that the two numerals are within delta of each other.
+// 
+// 	 a.InDelta(math.Pi, (22 / 7.0), 0.01)
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) InDelta(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	return InDelta(a.t, expected, actual, delta, msgAndArgs...)
+}
+
+
+// InDeltaSlice is the same as InDelta, except it compares two slices.
+func (a *Assertions) InDeltaSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	return InDeltaSlice(a.t, expected, actual, delta, msgAndArgs...)
+}
+
+
+// InEpsilon asserts that expected and actual have a relative error less than epsilon
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) InEpsilon(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
+	return InEpsilon(a.t, expected, actual, epsilon, msgAndArgs...)
+}
+
+
+// InEpsilonSlice is the same as InEpsilon, except it compares two slices.
+func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	return InEpsilonSlice(a.t, expected, actual, delta, msgAndArgs...)
+}
+
+
+// IsType asserts that the specified objects are of the same type.
+func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool {
+	return IsType(a.t, expectedType, object, msgAndArgs...)
+}
+
+
+// JSONEq asserts that two JSON strings are equivalent.
+// 
+//  a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interface{}) bool {
+	return JSONEq(a.t, expected, actual, msgAndArgs...)
+}
+
+
+// Len asserts that the specified object has specific length.
+// Len also fails if the object has a type that len() not accept.
+// 
+//    a.Len(mySlice, 3, "The size of slice is not 3")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface{}) bool {
+	return Len(a.t, object, length, msgAndArgs...)
+}
+
+
+// Nil asserts that the specified object is nil.
+// 
+//    a.Nil(err, "err should be nothing")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{}) bool {
+	return Nil(a.t, object, msgAndArgs...)
+}
+
+
+// NoError asserts that a function returned no error (i.e. `nil`).
+// 
+//   actualObj, err := SomeFunction()
+//   if a.NoError(err) {
+// 	   assert.Equal(t, actualObj, expectedObj)
+//   }
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) bool {
+	return NoError(a.t, err, msgAndArgs...)
+}
+
+
+// NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
+// specified substring or element.
+// 
+//    a.NotContains("Hello World", "Earth", "But 'Hello World' does NOT contain 'Earth'")
+//    a.NotContains(["Hello", "World"], "Earth", "But ['Hello', 'World'] does NOT contain 'Earth'")
+//    a.NotContains({"Hello": "World"}, "Earth", "But {'Hello': 'World'} does NOT contain 'Earth'")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
+	return NotContains(a.t, s, contains, msgAndArgs...)
+}
+
+
+// NotEmpty asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
+// a slice or a channel with len == 0.
+// 
+//  if a.NotEmpty(obj) {
+//    assert.Equal(t, "two", obj[1])
+//  }
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{}) bool {
+	return NotEmpty(a.t, object, msgAndArgs...)
+}
+
+
+// NotEqual asserts that the specified values are NOT equal.
+// 
+//    a.NotEqual(obj1, obj2, "two objects shouldn't be equal")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	return NotEqual(a.t, expected, actual, msgAndArgs...)
+}
+
+
+// NotNil asserts that the specified object is not nil.
+// 
+//    a.NotNil(err, "err should be something")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{}) bool {
+	return NotNil(a.t, object, msgAndArgs...)
+}
+
+
+// NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
+// 
+//   a.NotPanics(func(){
+//     RemainCalm()
+//   }, "Calling RemainCalm() should NOT panic")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotPanics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	return NotPanics(a.t, f, msgAndArgs...)
+}
+
+
+// NotRegexp asserts that a specified regexp does not match a string.
+// 
+//  a.NotRegexp(regexp.MustCompile("starts"), "it's starting")
+//  a.NotRegexp("^start", "it's not starting")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
+	return NotRegexp(a.t, rx, str, msgAndArgs...)
+}
+
+
+// NotZero asserts that i is not the zero value for its type and returns the truth.
+func (a *Assertions) NotZero(i interface{}, msgAndArgs ...interface{}) bool {
+	return NotZero(a.t, i, msgAndArgs...)
+}
+
+
+// Panics asserts that the code inside the specified PanicTestFunc panics.
+// 
+//   a.Panics(func(){
+//     GoCrazy()
+//   }, "Calling GoCrazy() should panic")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Panics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	return Panics(a.t, f, msgAndArgs...)
+}
+
+
+// Regexp asserts that a specified regexp matches a string.
+// 
+//  a.Regexp(regexp.MustCompile("start"), "it's starting")
+//  a.Regexp("start...$", "it's not starting")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
+	return Regexp(a.t, rx, str, msgAndArgs...)
+}
+
+
+// True asserts that the specified value is true.
+// 
+//    a.True(myBool, "myBool should be true")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) True(value bool, msgAndArgs ...interface{}) bool {
+	return True(a.t, value, msgAndArgs...)
+}
+
+
+// WithinDuration asserts that the two times are within duration delta of each other.
+// 
+//   a.WithinDuration(time.Now(), time.Now(), 10*time.Second, "The difference should not be more than 10s")
+// 
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
+	return WithinDuration(a.t, expected, actual, delta, msgAndArgs...)
+}
+
+
+// Zero asserts that i is the zero value for its type and returns the truth.
+func (a *Assertions) Zero(i interface{}, msgAndArgs ...interface{}) bool {
+	return Zero(a.t, i, msgAndArgs...)
+}
diff --git a/vendor/github.com/stretchr/testify/assert/assertion_forward.go.tmpl b/vendor/github.com/stretchr/testify/assert/assertion_forward.go.tmpl
new file mode 100644
index 0000000..99f9acf
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/assertion_forward.go.tmpl
@@ -0,0 +1,4 @@
+{{.CommentWithoutT "a"}}
+func (a *Assertions) {{.DocInfo.Name}}({{.Params}}) bool {
+	return {{.DocInfo.Name}}(a.t, {{.ForwardedParams}})
+}
diff --git a/vendor/github.com/stretchr/testify/assert/assertions.go b/vendor/github.com/stretchr/testify/assert/assertions.go
new file mode 100644
index 0000000..b3f4e17
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/assertions.go
@@ -0,0 +1,1052 @@
+package assert
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"math"
+	"reflect"
+	"regexp"
+	"runtime"
+	"strings"
+	"time"
+	"unicode"
+	"unicode/utf8"
+
+	"github.com/davecgh/go-spew/spew"
+	"github.com/pmezard/go-difflib/difflib"
+)
+
+func init() {
+	spew.Config.SortKeys = true
+}
+
+// TestingT is an interface wrapper around *testing.T
+type TestingT interface {
+	Errorf(format string, args ...interface{})
+}
+
+// Comparison a custom function that returns true on success and false on failure
+type Comparison func() (success bool)
+
+/*
+	Helper functions
+*/
+
+// ObjectsAreEqual determines if two objects are considered equal.
+//
+// This function does no assertion of any kind.
+func ObjectsAreEqual(expected, actual interface{}) bool {
+
+	if expected == nil || actual == nil {
+		return expected == actual
+	}
+
+	return reflect.DeepEqual(expected, actual)
+
+}
+
+// ObjectsAreEqualValues gets whether two objects are equal, or if their
+// values are equal.
+func ObjectsAreEqualValues(expected, actual interface{}) bool {
+	if ObjectsAreEqual(expected, actual) {
+		return true
+	}
+
+	actualType := reflect.TypeOf(actual)
+	if actualType == nil {
+		return false
+	}
+	expectedValue := reflect.ValueOf(expected)
+	if expectedValue.IsValid() && expectedValue.Type().ConvertibleTo(actualType) {
+		// Attempt comparison after type conversion
+		return reflect.DeepEqual(expectedValue.Convert(actualType).Interface(), actual)
+	}
+
+	return false
+}
+
+/* CallerInfo is necessary because the assert functions use the testing object
+internally, causing it to print the file:line of the assert method, rather than where
+the problem actually occurred in calling code.*/
+
+// CallerInfo returns an array of strings containing the file and line number
+// of each stack frame leading from the current test to the assert call that
+// failed.
+func CallerInfo() []string {
+
+	pc := uintptr(0)
+	file := ""
+	line := 0
+	ok := false
+	name := ""
+
+	callers := []string{}
+	for i := 0; ; i++ {
+		pc, file, line, ok = runtime.Caller(i)
+		if !ok {
+			// The breaks below failed to terminate the loop, and we ran off the
+			// end of the call stack.
+			break
+		}
+
+		// This is a huge edge case, but it will panic if this is the case, see #180
+		if file == "<autogenerated>" {
+			break
+		}
+
+		f := runtime.FuncForPC(pc)
+		if f == nil {
+			break
+		}
+		name = f.Name()
+
+		// testing.tRunner is the standard library function that calls
+		// tests. Subtests are called directly by tRunner, without going through
+		// the Test/Benchmark/Example function that contains the t.Run calls, so
+		// with subtests we should break when we hit tRunner, without adding it
+		// to the list of callers.
+		if name == "testing.tRunner" {
+			break
+		}
+
+		parts := strings.Split(file, "/")
+		dir := parts[len(parts)-2]
+		file = parts[len(parts)-1]
+		if (dir != "assert" && dir != "mock" && dir != "require") || file == "mock_test.go" {
+			callers = append(callers, fmt.Sprintf("%s:%d", file, line))
+		}
+
+		// Drop the package
+		segments := strings.Split(name, ".")
+		name = segments[len(segments)-1]
+		if isTest(name, "Test") ||
+			isTest(name, "Benchmark") ||
+			isTest(name, "Example") {
+			break
+		}
+	}
+
+	return callers
+}
+
+// Stolen from the `go test` tool.
+// isTest tells whether name looks like a test (or benchmark, according to prefix).
+// It is a Test (say) if there is a character after Test that is not a lower-case letter.
+// We don't want TesticularCancer.
+func isTest(name, prefix string) bool {
+	if !strings.HasPrefix(name, prefix) {
+		return false
+	}
+	if len(name) == len(prefix) { // "Test" is ok
+		return true
+	}
+	rune, _ := utf8.DecodeRuneInString(name[len(prefix):])
+	return !unicode.IsLower(rune)
+}
+
+// getWhitespaceString returns a string that is long enough to overwrite the default
+// output from the go testing framework.
+func getWhitespaceString() string {
+
+	_, file, line, ok := runtime.Caller(1)
+	if !ok {
+		return ""
+	}
+	parts := strings.Split(file, "/")
+	file = parts[len(parts)-1]
+
+	return strings.Repeat(" ", len(fmt.Sprintf("%s:%d:      ", file, line)))
+
+}
+
+func messageFromMsgAndArgs(msgAndArgs ...interface{}) string {
+	if len(msgAndArgs) == 0 || msgAndArgs == nil {
+		return ""
+	}
+	if len(msgAndArgs) == 1 {
+		return msgAndArgs[0].(string)
+	}
+	if len(msgAndArgs) > 1 {
+		return fmt.Sprintf(msgAndArgs[0].(string), msgAndArgs[1:]...)
+	}
+	return ""
+}
+
+// Indents all lines of the message by appending a number of tabs to each line, in an output format compatible with Go's
+// test printing (see inner comment for specifics)
+func indentMessageLines(message string, tabs int) string {
+	outBuf := new(bytes.Buffer)
+
+	for i, scanner := 0, bufio.NewScanner(strings.NewReader(message)); scanner.Scan(); i++ {
+		if i != 0 {
+			outBuf.WriteRune('\n')
+		}
+		for ii := 0; ii < tabs; ii++ {
+			outBuf.WriteRune('\t')
+			// Bizarrely, all lines except the first need one fewer tabs prepended, so deliberately advance the counter
+			// by 1 prematurely.
+			if ii == 0 && i > 0 {
+				ii++
+			}
+		}
+		outBuf.WriteString(scanner.Text())
+	}
+
+	return outBuf.String()
+}
+
+type failNower interface {
+	FailNow()
+}
+
+// FailNow fails test
+func FailNow(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool {
+	Fail(t, failureMessage, msgAndArgs...)
+
+	// We cannot extend TestingT with FailNow() and
+	// maintain backwards compatibility, so we fallback
+	// to panicking when FailNow is not available in
+	// TestingT.
+	// See issue #263
+
+	if t, ok := t.(failNower); ok {
+		t.FailNow()
+	} else {
+		panic("test failed and t is missing `FailNow()`")
+	}
+	return false
+}
+
+// Fail reports a failure through
+func Fail(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool {
+
+	message := messageFromMsgAndArgs(msgAndArgs...)
+
+	errorTrace := strings.Join(CallerInfo(), "\n\r\t\t\t")
+	if len(message) > 0 {
+		t.Errorf("\r%s\r\tError Trace:\t%s\n"+
+			"\r\tError:%s\n"+
+			"\r\tMessages:\t%s\n\r",
+			getWhitespaceString(),
+			errorTrace,
+			indentMessageLines(failureMessage, 2),
+			message)
+	} else {
+		t.Errorf("\r%s\r\tError Trace:\t%s\n"+
+			"\r\tError:%s\n\r",
+			getWhitespaceString(),
+			errorTrace,
+			indentMessageLines(failureMessage, 2))
+	}
+
+	return false
+}
+
+// Implements asserts that an object is implemented by the specified interface.
+//
+//    assert.Implements(t, (*MyInterface)(nil), new(MyObject), "MyObject")
+func Implements(t TestingT, interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
+
+	interfaceType := reflect.TypeOf(interfaceObject).Elem()
+
+	if !reflect.TypeOf(object).Implements(interfaceType) {
+		return Fail(t, fmt.Sprintf("%T must implement %v", object, interfaceType), msgAndArgs...)
+	}
+
+	return true
+
+}
+
+// IsType asserts that the specified objects are of the same type.
+func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool {
+
+	if !ObjectsAreEqual(reflect.TypeOf(object), reflect.TypeOf(expectedType)) {
+		return Fail(t, fmt.Sprintf("Object expected to be of type %v, but was %v", reflect.TypeOf(expectedType), reflect.TypeOf(object)), msgAndArgs...)
+	}
+
+	return true
+}
+
+// Equal asserts that two objects are equal.
+//
+//    assert.Equal(t, 123, 123, "123 and 123 should be equal")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Equal(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+
+	if !ObjectsAreEqual(expected, actual) {
+		diff := diff(expected, actual)
+		expected, actual = formatUnequalValues(expected, actual)
+		return Fail(t, fmt.Sprintf("Not equal: %s (expected)\n"+
+			"        != %s (actual)%s", expected, actual, diff), msgAndArgs...)
+	}
+
+	return true
+
+}
+
+// formatUnequalValues takes two values of arbitrary types and returns string
+// representations appropriate to be presented to the user.
+//
+// If the values are not of like type, the returned strings will be prefixed
+// with the type name, and the value will be enclosed in parenthesis similar
+// to a type conversion in the Go grammar.
+func formatUnequalValues(expected, actual interface{}) (e string, a string) {
+	aType := reflect.TypeOf(expected)
+	bType := reflect.TypeOf(actual)
+
+	if aType != bType && isNumericType(aType) && isNumericType(bType) {
+		return fmt.Sprintf("%v(%#v)", aType, expected),
+			fmt.Sprintf("%v(%#v)", bType, actual)
+	}
+
+	return fmt.Sprintf("%#v", expected),
+		fmt.Sprintf("%#v", actual)
+}
+
+func isNumericType(t reflect.Type) bool {
+	switch t.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return true
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		return true
+	case reflect.Float32, reflect.Float64:
+		return true
+	}
+
+	return false
+}
+
+// EqualValues asserts that two objects are equal or convertable to the same types
+// and equal.
+//
+//    assert.EqualValues(t, uint32(123), int32(123), "123 and 123 should be equal")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func EqualValues(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+
+	if !ObjectsAreEqualValues(expected, actual) {
+		return Fail(t, fmt.Sprintf("Not equal: %#v (expected)\n"+
+			"        != %#v (actual)", expected, actual), msgAndArgs...)
+	}
+
+	return true
+
+}
+
+// Exactly asserts that two objects are equal is value and type.
+//
+//    assert.Exactly(t, int32(123), int64(123), "123 and 123 should NOT be equal")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Exactly(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+
+	aType := reflect.TypeOf(expected)
+	bType := reflect.TypeOf(actual)
+
+	if aType != bType {
+		return Fail(t, fmt.Sprintf("Types expected to match exactly\n\r\t%v != %v", aType, bType), msgAndArgs...)
+	}
+
+	return Equal(t, expected, actual, msgAndArgs...)
+
+}
+
+// NotNil asserts that the specified object is not nil.
+//
+//    assert.NotNil(t, err, "err should be something")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotNil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
+	if !isNil(object) {
+		return true
+	}
+	return Fail(t, "Expected value not to be nil.", msgAndArgs...)
+}
+
+// isNil checks if a specified object is nil or not, without Failing.
+func isNil(object interface{}) bool {
+	if object == nil {
+		return true
+	}
+
+	value := reflect.ValueOf(object)
+	kind := value.Kind()
+	if kind >= reflect.Chan && kind <= reflect.Slice && value.IsNil() {
+		return true
+	}
+
+	return false
+}
+
+// Nil asserts that the specified object is nil.
+//
+//    assert.Nil(t, err, "err should be nothing")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Nil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
+	if isNil(object) {
+		return true
+	}
+	return Fail(t, fmt.Sprintf("Expected nil, but got: %#v", object), msgAndArgs...)
+}
+
+var numericZeros = []interface{}{
+	int(0),
+	int8(0),
+	int16(0),
+	int32(0),
+	int64(0),
+	uint(0),
+	uint8(0),
+	uint16(0),
+	uint32(0),
+	uint64(0),
+	float32(0),
+	float64(0),
+}
+
+// isEmpty gets whether the specified object is considered empty or not.
+func isEmpty(object interface{}) bool {
+
+	if object == nil {
+		return true
+	} else if object == "" {
+		return true
+	} else if object == false {
+		return true
+	}
+
+	for _, v := range numericZeros {
+		if object == v {
+			return true
+		}
+	}
+
+	objValue := reflect.ValueOf(object)
+
+	switch objValue.Kind() {
+	case reflect.Map:
+		fallthrough
+	case reflect.Slice, reflect.Chan:
+		{
+			return (objValue.Len() == 0)
+		}
+	case reflect.Struct:
+		switch object.(type) {
+		case time.Time:
+			return object.(time.Time).IsZero()
+		}
+	case reflect.Ptr:
+		{
+			if objValue.IsNil() {
+				return true
+			}
+			switch object.(type) {
+			case *time.Time:
+				return object.(*time.Time).IsZero()
+			default:
+				return false
+			}
+		}
+	}
+	return false
+}
+
+// Empty asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
+// a slice or a channel with len == 0.
+//
+//  assert.Empty(t, obj)
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Empty(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
+
+	pass := isEmpty(object)
+	if !pass {
+		Fail(t, fmt.Sprintf("Should be empty, but was %v", object), msgAndArgs...)
+	}
+
+	return pass
+
+}
+
+// NotEmpty asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
+// a slice or a channel with len == 0.
+//
+//  if assert.NotEmpty(t, obj) {
+//    assert.Equal(t, "two", obj[1])
+//  }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotEmpty(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
+
+	pass := !isEmpty(object)
+	if !pass {
+		Fail(t, fmt.Sprintf("Should NOT be empty, but was %v", object), msgAndArgs...)
+	}
+
+	return pass
+
+}
+
+// getLen try to get length of object.
+// return (false, 0) if impossible.
+func getLen(x interface{}) (ok bool, length int) {
+	v := reflect.ValueOf(x)
+	defer func() {
+		if e := recover(); e != nil {
+			ok = false
+		}
+	}()
+	return true, v.Len()
+}
+
+// Len asserts that the specified object has specific length.
+// Len also fails if the object has a type that len() not accept.
+//
+//    assert.Len(t, mySlice, 3, "The size of slice is not 3")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{}) bool {
+	ok, l := getLen(object)
+	if !ok {
+		return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", object), msgAndArgs...)
+	}
+
+	if l != length {
+		return Fail(t, fmt.Sprintf("\"%s\" should have %d item(s), but has %d", object, length, l), msgAndArgs...)
+	}
+	return true
+}
+
+// True asserts that the specified value is true.
+//
+//    assert.True(t, myBool, "myBool should be true")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func True(t TestingT, value bool, msgAndArgs ...interface{}) bool {
+
+	if value != true {
+		return Fail(t, "Should be true", msgAndArgs...)
+	}
+
+	return true
+
+}
+
+// False asserts that the specified value is false.
+//
+//    assert.False(t, myBool, "myBool should be false")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func False(t TestingT, value bool, msgAndArgs ...interface{}) bool {
+
+	if value != false {
+		return Fail(t, "Should be false", msgAndArgs...)
+	}
+
+	return true
+
+}
+
+// NotEqual asserts that the specified values are NOT equal.
+//
+//    assert.NotEqual(t, obj1, obj2, "two objects shouldn't be equal")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotEqual(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+
+	if ObjectsAreEqual(expected, actual) {
+		return Fail(t, fmt.Sprintf("Should not be: %#v\n", actual), msgAndArgs...)
+	}
+
+	return true
+
+}
+
+// containsElement try loop over the list check if the list includes the element.
+// return (false, false) if impossible.
+// return (true, false) if element was not found.
+// return (true, true) if element was found.
+func includeElement(list interface{}, element interface{}) (ok, found bool) {
+
+	listValue := reflect.ValueOf(list)
+	elementValue := reflect.ValueOf(element)
+	defer func() {
+		if e := recover(); e != nil {
+			ok = false
+			found = false
+		}
+	}()
+
+	if reflect.TypeOf(list).Kind() == reflect.String {
+		return true, strings.Contains(listValue.String(), elementValue.String())
+	}
+
+	if reflect.TypeOf(list).Kind() == reflect.Map {
+		mapKeys := listValue.MapKeys()
+		for i := 0; i < len(mapKeys); i++ {
+			if ObjectsAreEqual(mapKeys[i].Interface(), element) {
+				return true, true
+			}
+		}
+		return true, false
+	}
+
+	for i := 0; i < listValue.Len(); i++ {
+		if ObjectsAreEqual(listValue.Index(i).Interface(), element) {
+			return true, true
+		}
+	}
+	return true, false
+
+}
+
+// Contains asserts that the specified string, list(array, slice...) or map contains the
+// specified substring or element.
+//
+//    assert.Contains(t, "Hello World", "World", "But 'Hello World' does contain 'World'")
+//    assert.Contains(t, ["Hello", "World"], "World", "But ["Hello", "World"] does contain 'World'")
+//    assert.Contains(t, {"Hello": "World"}, "Hello", "But {'Hello': 'World'} does contain 'Hello'")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Contains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool {
+
+	ok, found := includeElement(s, contains)
+	if !ok {
+		return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", s), msgAndArgs...)
+	}
+	if !found {
+		return Fail(t, fmt.Sprintf("\"%s\" does not contain \"%s\"", s, contains), msgAndArgs...)
+	}
+
+	return true
+
+}
+
+// NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
+// specified substring or element.
+//
+//    assert.NotContains(t, "Hello World", "Earth", "But 'Hello World' does NOT contain 'Earth'")
+//    assert.NotContains(t, ["Hello", "World"], "Earth", "But ['Hello', 'World'] does NOT contain 'Earth'")
+//    assert.NotContains(t, {"Hello": "World"}, "Earth", "But {'Hello': 'World'} does NOT contain 'Earth'")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotContains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool {
+
+	ok, found := includeElement(s, contains)
+	if !ok {
+		return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", s), msgAndArgs...)
+	}
+	if found {
+		return Fail(t, fmt.Sprintf("\"%s\" should not contain \"%s\"", s, contains), msgAndArgs...)
+	}
+
+	return true
+
+}
+
+// Condition uses a Comparison to assert a complex condition.
+func Condition(t TestingT, comp Comparison, msgAndArgs ...interface{}) bool {
+	result := comp()
+	if !result {
+		Fail(t, "Condition failed!", msgAndArgs...)
+	}
+	return result
+}
+
+// PanicTestFunc defines a func that should be passed to the assert.Panics and assert.NotPanics
+// methods, and represents a simple func that takes no arguments, and returns nothing.
+type PanicTestFunc func()
+
+// didPanic returns true if the function passed to it panics. Otherwise, it returns false.
+func didPanic(f PanicTestFunc) (bool, interface{}) {
+
+	didPanic := false
+	var message interface{}
+	func() {
+
+		defer func() {
+			if message = recover(); message != nil {
+				didPanic = true
+			}
+		}()
+
+		// call the target function
+		f()
+
+	}()
+
+	return didPanic, message
+
+}
+
+// Panics asserts that the code inside the specified PanicTestFunc panics.
+//
+//   assert.Panics(t, func(){
+//     GoCrazy()
+//   }, "Calling GoCrazy() should panic")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Panics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
+
+	if funcDidPanic, panicValue := didPanic(f); !funcDidPanic {
+		return Fail(t, fmt.Sprintf("func %#v should panic\n\r\tPanic value:\t%v", f, panicValue), msgAndArgs...)
+	}
+
+	return true
+}
+
+// NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
+//
+//   assert.NotPanics(t, func(){
+//     RemainCalm()
+//   }, "Calling RemainCalm() should NOT panic")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotPanics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
+
+	if funcDidPanic, panicValue := didPanic(f); funcDidPanic {
+		return Fail(t, fmt.Sprintf("func %#v should not panic\n\r\tPanic value:\t%v", f, panicValue), msgAndArgs...)
+	}
+
+	return true
+}
+
+// WithinDuration asserts that the two times are within duration delta of each other.
+//
+//   assert.WithinDuration(t, time.Now(), time.Now(), 10*time.Second, "The difference should not be more than 10s")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func WithinDuration(t TestingT, expected, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
+
+	dt := expected.Sub(actual)
+	if dt < -delta || dt > delta {
+		return Fail(t, fmt.Sprintf("Max difference between %v and %v allowed is %v, but difference was %v", expected, actual, delta, dt), msgAndArgs...)
+	}
+
+	return true
+}
+
+func toFloat(x interface{}) (float64, bool) {
+	var xf float64
+	xok := true
+
+	switch xn := x.(type) {
+	case uint8:
+		xf = float64(xn)
+	case uint16:
+		xf = float64(xn)
+	case uint32:
+		xf = float64(xn)
+	case uint64:
+		xf = float64(xn)
+	case int:
+		xf = float64(xn)
+	case int8:
+		xf = float64(xn)
+	case int16:
+		xf = float64(xn)
+	case int32:
+		xf = float64(xn)
+	case int64:
+		xf = float64(xn)
+	case float32:
+		xf = float64(xn)
+	case float64:
+		xf = float64(xn)
+	default:
+		xok = false
+	}
+
+	return xf, xok
+}
+
+// InDelta asserts that the two numerals are within delta of each other.
+//
+// 	 assert.InDelta(t, math.Pi, (22 / 7.0), 0.01)
+//
+// Returns whether the assertion was successful (true) or not (false).
+func InDelta(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+
+	af, aok := toFloat(expected)
+	bf, bok := toFloat(actual)
+
+	if !aok || !bok {
+		return Fail(t, fmt.Sprintf("Parameters must be numerical"), msgAndArgs...)
+	}
+
+	if math.IsNaN(af) {
+		return Fail(t, fmt.Sprintf("Actual must not be NaN"), msgAndArgs...)
+	}
+
+	if math.IsNaN(bf) {
+		return Fail(t, fmt.Sprintf("Expected %v with delta %v, but was NaN", expected, delta), msgAndArgs...)
+	}
+
+	dt := af - bf
+	if dt < -delta || dt > delta {
+		return Fail(t, fmt.Sprintf("Max difference between %v and %v allowed is %v, but difference was %v", expected, actual, delta, dt), msgAndArgs...)
+	}
+
+	return true
+}
+
+// InDeltaSlice is the same as InDelta, except it compares two slices.
+func InDeltaSlice(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
+	if expected == nil || actual == nil ||
+		reflect.TypeOf(actual).Kind() != reflect.Slice ||
+		reflect.TypeOf(expected).Kind() != reflect.Slice {
+		return Fail(t, fmt.Sprintf("Parameters must be slice"), msgAndArgs...)
+	}
+
+	actualSlice := reflect.ValueOf(actual)
+	expectedSlice := reflect.ValueOf(expected)
+
+	for i := 0; i < actualSlice.Len(); i++ {
+		result := InDelta(t, actualSlice.Index(i).Interface(), expectedSlice.Index(i).Interface(), delta)
+		if !result {
+			return result
+		}
+	}
+
+	return true
+}
+
+func calcRelativeError(expected, actual interface{}) (float64, error) {
+	af, aok := toFloat(expected)
+	if !aok {
+		return 0, fmt.Errorf("expected value %q cannot be converted to float", expected)
+	}
+	if af == 0 {
+		return 0, fmt.Errorf("expected value must have a value other than zero to calculate the relative error")
+	}
+	bf, bok := toFloat(actual)
+	if !bok {
+		return 0, fmt.Errorf("expected value %q cannot be converted to float", actual)
+	}
+
+	return math.Abs(af-bf) / math.Abs(af), nil
+}
+
+// InEpsilon asserts that expected and actual have a relative error less than epsilon
+//
+// Returns whether the assertion was successful (true) or not (false).
+func InEpsilon(t TestingT, expected, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
+	actualEpsilon, err := calcRelativeError(expected, actual)
+	if err != nil {
+		return Fail(t, err.Error(), msgAndArgs...)
+	}
+	if actualEpsilon > epsilon {
+		return Fail(t, fmt.Sprintf("Relative error is too high: %#v (expected)\n"+
+			"        < %#v (actual)", actualEpsilon, epsilon), msgAndArgs...)
+	}
+
+	return true
+}
+
+// InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
+func InEpsilonSlice(t TestingT, expected, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
+	if expected == nil || actual == nil ||
+		reflect.TypeOf(actual).Kind() != reflect.Slice ||
+		reflect.TypeOf(expected).Kind() != reflect.Slice {
+		return Fail(t, fmt.Sprintf("Parameters must be slice"), msgAndArgs...)
+	}
+
+	actualSlice := reflect.ValueOf(actual)
+	expectedSlice := reflect.ValueOf(expected)
+
+	for i := 0; i < actualSlice.Len(); i++ {
+		result := InEpsilon(t, actualSlice.Index(i).Interface(), expectedSlice.Index(i).Interface(), epsilon)
+		if !result {
+			return result
+		}
+	}
+
+	return true
+}
+
+/*
+	Errors
+*/
+
+// NoError asserts that a function returned no error (i.e. `nil`).
+//
+//   actualObj, err := SomeFunction()
+//   if assert.NoError(t, err) {
+//	   assert.Equal(t, actualObj, expectedObj)
+//   }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NoError(t TestingT, err error, msgAndArgs ...interface{}) bool {
+	if err != nil {
+		return Fail(t, fmt.Sprintf("Received unexpected error %+v", err), msgAndArgs...)
+	}
+
+	return true
+}
+
+// Error asserts that a function returned an error (i.e. not `nil`).
+//
+//   actualObj, err := SomeFunction()
+//   if assert.Error(t, err, "An error was expected") {
+//	   assert.Equal(t, err, expectedError)
+//   }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Error(t TestingT, err error, msgAndArgs ...interface{}) bool {
+
+	if err == nil {
+		return Fail(t, "An error is expected but got nil.", msgAndArgs...)
+	}
+
+	return true
+}
+
+// EqualError asserts that a function returned an error (i.e. not `nil`)
+// and that it is equal to the provided error.
+//
+//   actualObj, err := SomeFunction()
+//   assert.EqualError(t, err,  expectedErrorString, "An error was expected")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func EqualError(t TestingT, theError error, errString string, msgAndArgs ...interface{}) bool {
+
+	message := messageFromMsgAndArgs(msgAndArgs...)
+	if !NotNil(t, theError, "An error is expected but got nil. %s", message) {
+		return false
+	}
+	s := "An error with value \"%s\" is expected but got \"%s\". %s"
+	return Equal(t, errString, theError.Error(),
+		s, errString, theError.Error(), message)
+}
+
+// matchRegexp return true if a specified regexp matches a string.
+func matchRegexp(rx interface{}, str interface{}) bool {
+
+	var r *regexp.Regexp
+	if rr, ok := rx.(*regexp.Regexp); ok {
+		r = rr
+	} else {
+		r = regexp.MustCompile(fmt.Sprint(rx))
+	}
+
+	return (r.FindStringIndex(fmt.Sprint(str)) != nil)
+
+}
+
+// Regexp asserts that a specified regexp matches a string.
+//
+//  assert.Regexp(t, regexp.MustCompile("start"), "it's starting")
+//  assert.Regexp(t, "start...$", "it's not starting")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Regexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
+
+	match := matchRegexp(rx, str)
+
+	if !match {
+		Fail(t, fmt.Sprintf("Expect \"%v\" to match \"%v\"", str, rx), msgAndArgs...)
+	}
+
+	return match
+}
+
+// NotRegexp asserts that a specified regexp does not match a string.
+//
+//  assert.NotRegexp(t, regexp.MustCompile("starts"), "it's starting")
+//  assert.NotRegexp(t, "^start", "it's not starting")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotRegexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
+	match := matchRegexp(rx, str)
+
+	if match {
+		Fail(t, fmt.Sprintf("Expect \"%v\" to NOT match \"%v\"", str, rx), msgAndArgs...)
+	}
+
+	return !match
+
+}
+
+// Zero asserts that i is the zero value for its type and returns the truth.
+func Zero(t TestingT, i interface{}, msgAndArgs ...interface{}) bool {
+	if i != nil && !reflect.DeepEqual(i, reflect.Zero(reflect.TypeOf(i)).Interface()) {
+		return Fail(t, fmt.Sprintf("Should be zero, but was %v", i), msgAndArgs...)
+	}
+	return true
+}
+
+// NotZero asserts that i is not the zero value for its type and returns the truth.
+func NotZero(t TestingT, i interface{}, msgAndArgs ...interface{}) bool {
+	if i == nil || reflect.DeepEqual(i, reflect.Zero(reflect.TypeOf(i)).Interface()) {
+		return Fail(t, fmt.Sprintf("Should not be zero, but was %v", i), msgAndArgs...)
+	}
+	return true
+}
+
+// JSONEq asserts that two JSON strings are equivalent.
+//
+//  assert.JSONEq(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
+//
+// Returns whether the assertion was successful (true) or not (false).
+func JSONEq(t TestingT, expected string, actual string, msgAndArgs ...interface{}) bool {
+	var expectedJSONAsInterface, actualJSONAsInterface interface{}
+
+	if err := json.Unmarshal([]byte(expected), &expectedJSONAsInterface); err != nil {
+		return Fail(t, fmt.Sprintf("Expected value ('%s') is not valid json.\nJSON parsing error: '%s'", expected, err.Error()), msgAndArgs...)
+	}
+
+	if err := json.Unmarshal([]byte(actual), &actualJSONAsInterface); err != nil {
+		return Fail(t, fmt.Sprintf("Input ('%s') needs to be valid json.\nJSON parsing error: '%s'", actual, err.Error()), msgAndArgs...)
+	}
+
+	return Equal(t, expectedJSONAsInterface, actualJSONAsInterface, msgAndArgs...)
+}
+
+func typeAndKind(v interface{}) (reflect.Type, reflect.Kind) {
+	t := reflect.TypeOf(v)
+	k := t.Kind()
+
+	if k == reflect.Ptr {
+		t = t.Elem()
+		k = t.Kind()
+	}
+	return t, k
+}
+
+// diff returns a diff of both values as long as both are of the same type and
+// are a struct, map, slice or array. Otherwise it returns an empty string.
+func diff(expected interface{}, actual interface{}) string {
+	if expected == nil || actual == nil {
+		return ""
+	}
+
+	et, ek := typeAndKind(expected)
+	at, _ := typeAndKind(actual)
+
+	if et != at {
+		return ""
+	}
+
+	if ek != reflect.Struct && ek != reflect.Map && ek != reflect.Slice && ek != reflect.Array {
+		return ""
+	}
+
+	e := spew.Sdump(expected)
+	a := spew.Sdump(actual)
+
+	diff, _ := difflib.GetUnifiedDiffString(difflib.UnifiedDiff{
+		A:        difflib.SplitLines(e),
+		B:        difflib.SplitLines(a),
+		FromFile: "Expected",
+		FromDate: "",
+		ToFile:   "Actual",
+		ToDate:   "",
+		Context:  1,
+	})
+
+	return "\n\nDiff:\n" + diff
+}
diff --git a/vendor/github.com/stretchr/testify/assert/assertions_test.go b/vendor/github.com/stretchr/testify/assert/assertions_test.go
new file mode 100644
index 0000000..ac9b701
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/assertions_test.go
@@ -0,0 +1,1210 @@
+package assert
+
+import (
+	"errors"
+	"io"
+	"math"
+	"os"
+	"reflect"
+	"regexp"
+	"testing"
+	"time"
+)
+
+var (
+	i     interface{}
+	zeros = []interface{}{
+		false,
+		byte(0),
+		complex64(0),
+		complex128(0),
+		float32(0),
+		float64(0),
+		int(0),
+		int8(0),
+		int16(0),
+		int32(0),
+		int64(0),
+		rune(0),
+		uint(0),
+		uint8(0),
+		uint16(0),
+		uint32(0),
+		uint64(0),
+		uintptr(0),
+		"",
+		[0]interface{}{},
+		[]interface{}(nil),
+		struct{ x int }{},
+		(*interface{})(nil),
+		(func())(nil),
+		nil,
+		interface{}(nil),
+		map[interface{}]interface{}(nil),
+		(chan interface{})(nil),
+		(<-chan interface{})(nil),
+		(chan<- interface{})(nil),
+	}
+	nonZeros = []interface{}{
+		true,
+		byte(1),
+		complex64(1),
+		complex128(1),
+		float32(1),
+		float64(1),
+		int(1),
+		int8(1),
+		int16(1),
+		int32(1),
+		int64(1),
+		rune(1),
+		uint(1),
+		uint8(1),
+		uint16(1),
+		uint32(1),
+		uint64(1),
+		uintptr(1),
+		"s",
+		[1]interface{}{1},
+		[]interface{}{},
+		struct{ x int }{1},
+		(*interface{})(&i),
+		(func())(func() {}),
+		interface{}(1),
+		map[interface{}]interface{}{},
+		(chan interface{})(make(chan interface{})),
+		(<-chan interface{})(make(chan interface{})),
+		(chan<- interface{})(make(chan interface{})),
+	}
+)
+
+// AssertionTesterInterface defines an interface to be used for testing assertion methods
+type AssertionTesterInterface interface {
+	TestMethod()
+}
+
+// AssertionTesterConformingObject is an object that conforms to the AssertionTesterInterface interface
+type AssertionTesterConformingObject struct {
+}
+
+func (a *AssertionTesterConformingObject) TestMethod() {
+}
+
+// AssertionTesterNonConformingObject is an object that does not conform to the AssertionTesterInterface interface
+type AssertionTesterNonConformingObject struct {
+}
+
+func TestObjectsAreEqual(t *testing.T) {
+
+	if !ObjectsAreEqual("Hello World", "Hello World") {
+		t.Error("objectsAreEqual should return true")
+	}
+	if !ObjectsAreEqual(123, 123) {
+		t.Error("objectsAreEqual should return true")
+	}
+	if !ObjectsAreEqual(123.5, 123.5) {
+		t.Error("objectsAreEqual should return true")
+	}
+	if !ObjectsAreEqual([]byte("Hello World"), []byte("Hello World")) {
+		t.Error("objectsAreEqual should return true")
+	}
+	if !ObjectsAreEqual(nil, nil) {
+		t.Error("objectsAreEqual should return true")
+	}
+	if ObjectsAreEqual(map[int]int{5: 10}, map[int]int{10: 20}) {
+		t.Error("objectsAreEqual should return false")
+	}
+	if ObjectsAreEqual('x', "x") {
+		t.Error("objectsAreEqual should return false")
+	}
+	if ObjectsAreEqual("x", 'x') {
+		t.Error("objectsAreEqual should return false")
+	}
+	if ObjectsAreEqual(0, 0.1) {
+		t.Error("objectsAreEqual should return false")
+	}
+	if ObjectsAreEqual(0.1, 0) {
+		t.Error("objectsAreEqual should return false")
+	}
+	if ObjectsAreEqual(uint32(10), int32(10)) {
+		t.Error("objectsAreEqual should return false")
+	}
+	if !ObjectsAreEqualValues(uint32(10), int32(10)) {
+		t.Error("ObjectsAreEqualValues should return true")
+	}
+	if ObjectsAreEqualValues(0, nil) {
+		t.Fail()
+	}
+	if ObjectsAreEqualValues(nil, 0) {
+		t.Fail()
+	}
+
+}
+
+func TestImplements(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !Implements(mockT, (*AssertionTesterInterface)(nil), new(AssertionTesterConformingObject)) {
+		t.Error("Implements method should return true: AssertionTesterConformingObject implements AssertionTesterInterface")
+	}
+	if Implements(mockT, (*AssertionTesterInterface)(nil), new(AssertionTesterNonConformingObject)) {
+		t.Error("Implements method should return false: AssertionTesterNonConformingObject does not implements AssertionTesterInterface")
+	}
+
+}
+
+func TestIsType(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !IsType(mockT, new(AssertionTesterConformingObject), new(AssertionTesterConformingObject)) {
+		t.Error("IsType should return true: AssertionTesterConformingObject is the same type as AssertionTesterConformingObject")
+	}
+	if IsType(mockT, new(AssertionTesterConformingObject), new(AssertionTesterNonConformingObject)) {
+		t.Error("IsType should return false: AssertionTesterConformingObject is not the same type as AssertionTesterNonConformingObject")
+	}
+
+}
+
+func TestEqual(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !Equal(mockT, "Hello World", "Hello World") {
+		t.Error("Equal should return true")
+	}
+	if !Equal(mockT, 123, 123) {
+		t.Error("Equal should return true")
+	}
+	if !Equal(mockT, 123.5, 123.5) {
+		t.Error("Equal should return true")
+	}
+	if !Equal(mockT, []byte("Hello World"), []byte("Hello World")) {
+		t.Error("Equal should return true")
+	}
+	if !Equal(mockT, nil, nil) {
+		t.Error("Equal should return true")
+	}
+	if !Equal(mockT, int32(123), int32(123)) {
+		t.Error("Equal should return true")
+	}
+	if !Equal(mockT, uint64(123), uint64(123)) {
+		t.Error("Equal should return true")
+	}
+
+}
+
+func TestFormatUnequalValues(t *testing.T) {
+	expected, actual := formatUnequalValues("foo", "bar")
+	Equal(t, `"foo"`, expected, "value should not include type")
+	Equal(t, `"bar"`, actual, "value should not include type")
+
+	expected, actual = formatUnequalValues(123, 123)
+	Equal(t, `123`, expected, "value should not include type")
+	Equal(t, `123`, actual, "value should not include type")
+
+	expected, actual = formatUnequalValues(int64(123), int32(123))
+	Equal(t, `int64(123)`, expected, "value should include type")
+	Equal(t, `int32(123)`, actual, "value should include type")
+
+	type testStructType struct {
+		Val string
+	}
+
+	expected, actual = formatUnequalValues(&testStructType{Val: "test"}, &testStructType{Val: "test"})
+	Equal(t, `&assert.testStructType{Val:"test"}`, expected, "value should not include type annotation")
+	Equal(t, `&assert.testStructType{Val:"test"}`, actual, "value should not include type annotation")
+}
+
+func TestNotNil(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !NotNil(mockT, new(AssertionTesterConformingObject)) {
+		t.Error("NotNil should return true: object is not nil")
+	}
+	if NotNil(mockT, nil) {
+		t.Error("NotNil should return false: object is nil")
+	}
+	if NotNil(mockT, (*struct{})(nil)) {
+		t.Error("NotNil should return false: object is (*struct{})(nil)")
+	}
+
+}
+
+func TestNil(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !Nil(mockT, nil) {
+		t.Error("Nil should return true: object is nil")
+	}
+	if !Nil(mockT, (*struct{})(nil)) {
+		t.Error("Nil should return true: object is (*struct{})(nil)")
+	}
+	if Nil(mockT, new(AssertionTesterConformingObject)) {
+		t.Error("Nil should return false: object is not nil")
+	}
+
+}
+
+func TestTrue(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !True(mockT, true) {
+		t.Error("True should return true")
+	}
+	if True(mockT, false) {
+		t.Error("True should return false")
+	}
+
+}
+
+func TestFalse(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !False(mockT, false) {
+		t.Error("False should return true")
+	}
+	if False(mockT, true) {
+		t.Error("False should return false")
+	}
+
+}
+
+func TestExactly(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	a := float32(1)
+	b := float64(1)
+	c := float32(1)
+	d := float32(2)
+
+	if Exactly(mockT, a, b) {
+		t.Error("Exactly should return false")
+	}
+	if Exactly(mockT, a, d) {
+		t.Error("Exactly should return false")
+	}
+	if !Exactly(mockT, a, c) {
+		t.Error("Exactly should return true")
+	}
+
+	if Exactly(mockT, nil, a) {
+		t.Error("Exactly should return false")
+	}
+	if Exactly(mockT, a, nil) {
+		t.Error("Exactly should return false")
+	}
+
+}
+
+func TestNotEqual(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !NotEqual(mockT, "Hello World", "Hello World!") {
+		t.Error("NotEqual should return true")
+	}
+	if !NotEqual(mockT, 123, 1234) {
+		t.Error("NotEqual should return true")
+	}
+	if !NotEqual(mockT, 123.5, 123.55) {
+		t.Error("NotEqual should return true")
+	}
+	if !NotEqual(mockT, []byte("Hello World"), []byte("Hello World!")) {
+		t.Error("NotEqual should return true")
+	}
+	if !NotEqual(mockT, nil, new(AssertionTesterConformingObject)) {
+		t.Error("NotEqual should return true")
+	}
+	funcA := func() int { return 23 }
+	funcB := func() int { return 42 }
+	if !NotEqual(mockT, funcA, funcB) {
+		t.Error("NotEqual should return true")
+	}
+
+	if NotEqual(mockT, "Hello World", "Hello World") {
+		t.Error("NotEqual should return false")
+	}
+	if NotEqual(mockT, 123, 123) {
+		t.Error("NotEqual should return false")
+	}
+	if NotEqual(mockT, 123.5, 123.5) {
+		t.Error("NotEqual should return false")
+	}
+	if NotEqual(mockT, []byte("Hello World"), []byte("Hello World")) {
+		t.Error("NotEqual should return false")
+	}
+	if NotEqual(mockT, new(AssertionTesterConformingObject), new(AssertionTesterConformingObject)) {
+		t.Error("NotEqual should return false")
+	}
+}
+
+type A struct {
+	Name, Value string
+}
+
+func TestContains(t *testing.T) {
+
+	mockT := new(testing.T)
+	list := []string{"Foo", "Bar"}
+	complexList := []*A{
+		{"b", "c"},
+		{"d", "e"},
+		{"g", "h"},
+		{"j", "k"},
+	}
+	simpleMap := map[interface{}]interface{}{"Foo": "Bar"}
+
+	if !Contains(mockT, "Hello World", "Hello") {
+		t.Error("Contains should return true: \"Hello World\" contains \"Hello\"")
+	}
+	if Contains(mockT, "Hello World", "Salut") {
+		t.Error("Contains should return false: \"Hello World\" does not contain \"Salut\"")
+	}
+
+	if !Contains(mockT, list, "Bar") {
+		t.Error("Contains should return true: \"[\"Foo\", \"Bar\"]\" contains \"Bar\"")
+	}
+	if Contains(mockT, list, "Salut") {
+		t.Error("Contains should return false: \"[\"Foo\", \"Bar\"]\" does not contain \"Salut\"")
+	}
+	if !Contains(mockT, complexList, &A{"g", "h"}) {
+		t.Error("Contains should return true: complexList contains {\"g\", \"h\"}")
+	}
+	if Contains(mockT, complexList, &A{"g", "e"}) {
+		t.Error("Contains should return false: complexList contains {\"g\", \"e\"}")
+	}
+	if Contains(mockT, complexList, &A{"g", "e"}) {
+		t.Error("Contains should return false: complexList contains {\"g\", \"e\"}")
+	}
+	if !Contains(mockT, simpleMap, "Foo") {
+		t.Error("Contains should return true: \"{\"Foo\": \"Bar\"}\" contains \"Foo\"")
+	}
+	if Contains(mockT, simpleMap, "Bar") {
+		t.Error("Contains should return false: \"{\"Foo\": \"Bar\"}\" does not contains \"Bar\"")
+	}
+}
+
+func TestNotContains(t *testing.T) {
+
+	mockT := new(testing.T)
+	list := []string{"Foo", "Bar"}
+	simpleMap := map[interface{}]interface{}{"Foo": "Bar"}
+
+	if !NotContains(mockT, "Hello World", "Hello!") {
+		t.Error("NotContains should return true: \"Hello World\" does not contain \"Hello!\"")
+	}
+	if NotContains(mockT, "Hello World", "Hello") {
+		t.Error("NotContains should return false: \"Hello World\" contains \"Hello\"")
+	}
+
+	if !NotContains(mockT, list, "Foo!") {
+		t.Error("NotContains should return true: \"[\"Foo\", \"Bar\"]\" does not contain \"Foo!\"")
+	}
+	if NotContains(mockT, list, "Foo") {
+		t.Error("NotContains should return false: \"[\"Foo\", \"Bar\"]\" contains \"Foo\"")
+	}
+	if NotContains(mockT, simpleMap, "Foo") {
+		t.Error("Contains should return true: \"{\"Foo\": \"Bar\"}\" contains \"Foo\"")
+	}
+	if !NotContains(mockT, simpleMap, "Bar") {
+		t.Error("Contains should return false: \"{\"Foo\": \"Bar\"}\" does not contains \"Bar\"")
+	}
+}
+
+func Test_includeElement(t *testing.T) {
+
+	list1 := []string{"Foo", "Bar"}
+	list2 := []int{1, 2}
+	simpleMap := map[interface{}]interface{}{"Foo": "Bar"}
+
+	ok, found := includeElement("Hello World", "World")
+	True(t, ok)
+	True(t, found)
+
+	ok, found = includeElement(list1, "Foo")
+	True(t, ok)
+	True(t, found)
+
+	ok, found = includeElement(list1, "Bar")
+	True(t, ok)
+	True(t, found)
+
+	ok, found = includeElement(list2, 1)
+	True(t, ok)
+	True(t, found)
+
+	ok, found = includeElement(list2, 2)
+	True(t, ok)
+	True(t, found)
+
+	ok, found = includeElement(list1, "Foo!")
+	True(t, ok)
+	False(t, found)
+
+	ok, found = includeElement(list2, 3)
+	True(t, ok)
+	False(t, found)
+
+	ok, found = includeElement(list2, "1")
+	True(t, ok)
+	False(t, found)
+
+	ok, found = includeElement(simpleMap, "Foo")
+	True(t, ok)
+	True(t, found)
+
+	ok, found = includeElement(simpleMap, "Bar")
+	True(t, ok)
+	False(t, found)
+
+	ok, found = includeElement(1433, "1")
+	False(t, ok)
+	False(t, found)
+}
+
+func TestCondition(t *testing.T) {
+	mockT := new(testing.T)
+
+	if !Condition(mockT, func() bool { return true }, "Truth") {
+		t.Error("Condition should return true")
+	}
+
+	if Condition(mockT, func() bool { return false }, "Lie") {
+		t.Error("Condition should return false")
+	}
+
+}
+
+func TestDidPanic(t *testing.T) {
+
+	if funcDidPanic, _ := didPanic(func() {
+		panic("Panic!")
+	}); !funcDidPanic {
+		t.Error("didPanic should return true")
+	}
+
+	if funcDidPanic, _ := didPanic(func() {
+	}); funcDidPanic {
+		t.Error("didPanic should return false")
+	}
+
+}
+
+func TestPanics(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !Panics(mockT, func() {
+		panic("Panic!")
+	}) {
+		t.Error("Panics should return true")
+	}
+
+	if Panics(mockT, func() {
+	}) {
+		t.Error("Panics should return false")
+	}
+
+}
+
+func TestNotPanics(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	if !NotPanics(mockT, func() {
+	}) {
+		t.Error("NotPanics should return true")
+	}
+
+	if NotPanics(mockT, func() {
+		panic("Panic!")
+	}) {
+		t.Error("NotPanics should return false")
+	}
+
+}
+
+func TestNoError(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	// start with a nil error
+	var err error
+
+	True(t, NoError(mockT, err), "NoError should return True for nil arg")
+
+	// now set an error
+	err = errors.New("some error")
+
+	False(t, NoError(mockT, err), "NoError with error should return False")
+
+	// returning an empty error interface
+	err = func() error {
+		var err *customError
+		if err != nil {
+			t.Fatal("err should be nil here")
+		}
+		return err
+	}()
+
+	if err == nil { // err is not nil here!
+		t.Errorf("Error should be nil due to empty interface", err)
+	}
+
+	False(t, NoError(mockT, err), "NoError should fail with empty error interface")
+}
+
+type customError struct{}
+
+func (*customError) Error() string { return "fail" }
+
+func TestError(t *testing.T) {
+
+	mockT := new(testing.T)
+
+	// start with a nil error
+	var err error
+
+	False(t, Error(mockT, err), "Error should return False for nil arg")
+
+	// now set an error
+	err = errors.New("some error")
+
+	True(t, Error(mockT, err), "Error with error should return True")
+
+	// returning an empty error interface
+	err = func() error {
+		var err *customError
+		if err != nil {
+			t.Fatal("err should be nil here")
+		}
+		return err
+	}()
+
+	if err == nil { // err is not nil here!
+		t.Errorf("Error should be nil due to empty interface", err)
+	}
+
+	True(t, Error(mockT, err), "Error should pass with empty error interface")
+}
+
+func TestEqualError(t *testing.T) {
+	mockT := new(testing.T)
+
+	// start with a nil error
+	var err error
+	False(t, EqualError(mockT, err, ""),
+		"EqualError should return false for nil arg")
+
+	// now set an error
+	err = errors.New("some error")
+	False(t, EqualError(mockT, err, "Not some error"),
+		"EqualError should return false for different error string")
+	True(t, EqualError(mockT, err, "some error"),
+		"EqualError should return true")
+}
+
+func Test_isEmpty(t *testing.T) {
+
+	chWithValue := make(chan struct{}, 1)
+	chWithValue <- struct{}{}
+
+	True(t, isEmpty(""))
+	True(t, isEmpty(nil))
+	True(t, isEmpty([]string{}))
+	True(t, isEmpty(0))
+	True(t, isEmpty(int32(0)))
+	True(t, isEmpty(int64(0)))
+	True(t, isEmpty(false))
+	True(t, isEmpty(map[string]string{}))
+	True(t, isEmpty(new(time.Time)))
+	True(t, isEmpty(time.Time{}))
+	True(t, isEmpty(make(chan struct{})))
+	False(t, isEmpty("something"))
+	False(t, isEmpty(errors.New("something")))
+	False(t, isEmpty([]string{"something"}))
+	False(t, isEmpty(1))
+	False(t, isEmpty(true))
+	False(t, isEmpty(map[string]string{"Hello": "World"}))
+	False(t, isEmpty(chWithValue))
+
+}
+
+func TestEmpty(t *testing.T) {
+
+	mockT := new(testing.T)
+	chWithValue := make(chan struct{}, 1)
+	chWithValue <- struct{}{}
+	var tiP *time.Time
+	var tiNP time.Time
+	var s *string
+	var f *os.File
+
+	True(t, Empty(mockT, ""), "Empty string is empty")
+	True(t, Empty(mockT, nil), "Nil is empty")
+	True(t, Empty(mockT, []string{}), "Empty string array is empty")
+	True(t, Empty(mockT, 0), "Zero int value is empty")
+	True(t, Empty(mockT, false), "False value is empty")
+	True(t, Empty(mockT, make(chan struct{})), "Channel without values is empty")
+	True(t, Empty(mockT, s), "Nil string pointer is empty")
+	True(t, Empty(mockT, f), "Nil os.File pointer is empty")
+	True(t, Empty(mockT, tiP), "Nil time.Time pointer is empty")
+	True(t, Empty(mockT, tiNP), "time.Time is empty")
+
+	False(t, Empty(mockT, "something"), "Non Empty string is not empty")
+	False(t, Empty(mockT, errors.New("something")), "Non nil object is not empty")
+	False(t, Empty(mockT, []string{"something"}), "Non empty string array is not empty")
+	False(t, Empty(mockT, 1), "Non-zero int value is not empty")
+	False(t, Empty(mockT, true), "True value is not empty")
+	False(t, Empty(mockT, chWithValue), "Channel with values is not empty")
+}
+
+func TestNotEmpty(t *testing.T) {
+
+	mockT := new(testing.T)
+	chWithValue := make(chan struct{}, 1)
+	chWithValue <- struct{}{}
+
+	False(t, NotEmpty(mockT, ""), "Empty string is empty")
+	False(t, NotEmpty(mockT, nil), "Nil is empty")
+	False(t, NotEmpty(mockT, []string{}), "Empty string array is empty")
+	False(t, NotEmpty(mockT, 0), "Zero int value is empty")
+	False(t, NotEmpty(mockT, false), "False value is empty")
+	False(t, NotEmpty(mockT, make(chan struct{})), "Channel without values is empty")
+
+	True(t, NotEmpty(mockT, "something"), "Non Empty string is not empty")
+	True(t, NotEmpty(mockT, errors.New("something")), "Non nil object is not empty")
+	True(t, NotEmpty(mockT, []string{"something"}), "Non empty string array is not empty")
+	True(t, NotEmpty(mockT, 1), "Non-zero int value is not empty")
+	True(t, NotEmpty(mockT, true), "True value is not empty")
+	True(t, NotEmpty(mockT, chWithValue), "Channel with values is not empty")
+}
+
+func Test_getLen(t *testing.T) {
+	falseCases := []interface{}{
+		nil,
+		0,
+		true,
+		false,
+		'A',
+		struct{}{},
+	}
+	for _, v := range falseCases {
+		ok, l := getLen(v)
+		False(t, ok, "Expected getLen fail to get length of %#v", v)
+		Equal(t, 0, l, "getLen should return 0 for %#v", v)
+	}
+
+	ch := make(chan int, 5)
+	ch <- 1
+	ch <- 2
+	ch <- 3
+	trueCases := []struct {
+		v interface{}
+		l int
+	}{
+		{[]int{1, 2, 3}, 3},
+		{[...]int{1, 2, 3}, 3},
+		{"ABC", 3},
+		{map[int]int{1: 2, 2: 4, 3: 6}, 3},
+		{ch, 3},
+
+		{[]int{}, 0},
+		{map[int]int{}, 0},
+		{make(chan int), 0},
+
+		{[]int(nil), 0},
+		{map[int]int(nil), 0},
+		{(chan int)(nil), 0},
+	}
+
+	for _, c := range trueCases {
+		ok, l := getLen(c.v)
+		True(t, ok, "Expected getLen success to get length of %#v", c.v)
+		Equal(t, c.l, l)
+	}
+}
+
+func TestLen(t *testing.T) {
+	mockT := new(testing.T)
+
+	False(t, Len(mockT, nil, 0), "nil does not have length")
+	False(t, Len(mockT, 0, 0), "int does not have length")
+	False(t, Len(mockT, true, 0), "true does not have length")
+	False(t, Len(mockT, false, 0), "false does not have length")
+	False(t, Len(mockT, 'A', 0), "Rune does not have length")
+	False(t, Len(mockT, struct{}{}, 0), "Struct does not have length")
+
+	ch := make(chan int, 5)
+	ch <- 1
+	ch <- 2
+	ch <- 3
+
+	cases := []struct {
+		v interface{}
+		l int
+	}{
+		{[]int{1, 2, 3}, 3},
+		{[...]int{1, 2, 3}, 3},
+		{"ABC", 3},
+		{map[int]int{1: 2, 2: 4, 3: 6}, 3},
+		{ch, 3},
+
+		{[]int{}, 0},
+		{map[int]int{}, 0},
+		{make(chan int), 0},
+
+		{[]int(nil), 0},
+		{map[int]int(nil), 0},
+		{(chan int)(nil), 0},
+	}
+
+	for _, c := range cases {
+		True(t, Len(mockT, c.v, c.l), "%#v have %d items", c.v, c.l)
+	}
+
+	cases = []struct {
+		v interface{}
+		l int
+	}{
+		{[]int{1, 2, 3}, 4},
+		{[...]int{1, 2, 3}, 2},
+		{"ABC", 2},
+		{map[int]int{1: 2, 2: 4, 3: 6}, 4},
+		{ch, 2},
+
+		{[]int{}, 1},
+		{map[int]int{}, 1},
+		{make(chan int), 1},
+
+		{[]int(nil), 1},
+		{map[int]int(nil), 1},
+		{(chan int)(nil), 1},
+	}
+
+	for _, c := range cases {
+		False(t, Len(mockT, c.v, c.l), "%#v have %d items", c.v, c.l)
+	}
+}
+
+func TestWithinDuration(t *testing.T) {
+
+	mockT := new(testing.T)
+	a := time.Now()
+	b := a.Add(10 * time.Second)
+
+	True(t, WithinDuration(mockT, a, b, 10*time.Second), "A 10s difference is within a 10s time difference")
+	True(t, WithinDuration(mockT, b, a, 10*time.Second), "A 10s difference is within a 10s time difference")
+
+	False(t, WithinDuration(mockT, a, b, 9*time.Second), "A 10s difference is not within a 9s time difference")
+	False(t, WithinDuration(mockT, b, a, 9*time.Second), "A 10s difference is not within a 9s time difference")
+
+	False(t, WithinDuration(mockT, a, b, -9*time.Second), "A 10s difference is not within a 9s time difference")
+	False(t, WithinDuration(mockT, b, a, -9*time.Second), "A 10s difference is not within a 9s time difference")
+
+	False(t, WithinDuration(mockT, a, b, -11*time.Second), "A 10s difference is not within a 9s time difference")
+	False(t, WithinDuration(mockT, b, a, -11*time.Second), "A 10s difference is not within a 9s time difference")
+}
+
+func TestInDelta(t *testing.T) {
+	mockT := new(testing.T)
+
+	True(t, InDelta(mockT, 1.001, 1, 0.01), "|1.001 - 1| <= 0.01")
+	True(t, InDelta(mockT, 1, 1.001, 0.01), "|1 - 1.001| <= 0.01")
+	True(t, InDelta(mockT, 1, 2, 1), "|1 - 2| <= 1")
+	False(t, InDelta(mockT, 1, 2, 0.5), "Expected |1 - 2| <= 0.5 to fail")
+	False(t, InDelta(mockT, 2, 1, 0.5), "Expected |2 - 1| <= 0.5 to fail")
+	False(t, InDelta(mockT, "", nil, 1), "Expected non numerals to fail")
+	False(t, InDelta(mockT, 42, math.NaN(), 0.01), "Expected NaN for actual to fail")
+	False(t, InDelta(mockT, math.NaN(), 42, 0.01), "Expected NaN for expected to fail")
+
+	cases := []struct {
+		a, b  interface{}
+		delta float64
+	}{
+		{uint8(2), uint8(1), 1},
+		{uint16(2), uint16(1), 1},
+		{uint32(2), uint32(1), 1},
+		{uint64(2), uint64(1), 1},
+
+		{int(2), int(1), 1},
+		{int8(2), int8(1), 1},
+		{int16(2), int16(1), 1},
+		{int32(2), int32(1), 1},
+		{int64(2), int64(1), 1},
+
+		{float32(2), float32(1), 1},
+		{float64(2), float64(1), 1},
+	}
+
+	for _, tc := range cases {
+		True(t, InDelta(mockT, tc.a, tc.b, tc.delta), "Expected |%V - %V| <= %v", tc.a, tc.b, tc.delta)
+	}
+}
+
+func TestInDeltaSlice(t *testing.T) {
+	mockT := new(testing.T)
+
+	True(t, InDeltaSlice(mockT,
+		[]float64{1.001, 0.999},
+		[]float64{1, 1},
+		0.1), "{1.001, 0.009} is element-wise close to {1, 1} in delta=0.1")
+
+	True(t, InDeltaSlice(mockT,
+		[]float64{1, 2},
+		[]float64{0, 3},
+		1), "{1, 2} is element-wise close to {0, 3} in delta=1")
+
+	False(t, InDeltaSlice(mockT,
+		[]float64{1, 2},
+		[]float64{0, 3},
+		0.1), "{1, 2} is not element-wise close to {0, 3} in delta=0.1")
+
+	False(t, InDeltaSlice(mockT, "", nil, 1), "Expected non numeral slices to fail")
+}
+
+func TestInEpsilon(t *testing.T) {
+	mockT := new(testing.T)
+
+	cases := []struct {
+		a, b    interface{}
+		epsilon float64
+	}{
+		{uint8(2), uint16(2), .001},
+		{2.1, 2.2, 0.1},
+		{2.2, 2.1, 0.1},
+		{-2.1, -2.2, 0.1},
+		{-2.2, -2.1, 0.1},
+		{uint64(100), uint8(101), 0.01},
+		{0.1, -0.1, 2},
+		{0.1, 0, 2},
+	}
+
+	for _, tc := range cases {
+		True(t, InEpsilon(t, tc.a, tc.b, tc.epsilon, "Expected %V and %V to have a relative difference of %v", tc.a, tc.b, tc.epsilon), "test: %q", tc)
+	}
+
+	cases = []struct {
+		a, b    interface{}
+		epsilon float64
+	}{
+		{uint8(2), int16(-2), .001},
+		{uint64(100), uint8(102), 0.01},
+		{2.1, 2.2, 0.001},
+		{2.2, 2.1, 0.001},
+		{2.1, -2.2, 1},
+		{2.1, "bla-bla", 0},
+		{0.1, -0.1, 1.99},
+		{0, 0.1, 2}, // expected must be different to zero
+	}
+
+	for _, tc := range cases {
+		False(t, InEpsilon(mockT, tc.a, tc.b, tc.epsilon, "Expected %V and %V to have a relative difference of %v", tc.a, tc.b, tc.epsilon))
+	}
+
+}
+
+func TestInEpsilonSlice(t *testing.T) {
+	mockT := new(testing.T)
+
+	True(t, InEpsilonSlice(mockT,
+		[]float64{2.2, 2.0},
+		[]float64{2.1, 2.1},
+		0.06), "{2.2, 2.0} is element-wise close to {2.1, 2.1} in espilon=0.06")
+
+	False(t, InEpsilonSlice(mockT,
+		[]float64{2.2, 2.0},
+		[]float64{2.1, 2.1},
+		0.04), "{2.2, 2.0} is not element-wise close to {2.1, 2.1} in espilon=0.04")
+
+	False(t, InEpsilonSlice(mockT, "", nil, 1), "Expected non numeral slices to fail")
+}
+
+func TestRegexp(t *testing.T) {
+	mockT := new(testing.T)
+
+	cases := []struct {
+		rx, str string
+	}{
+		{"^start", "start of the line"},
+		{"end$", "in the end"},
+		{"[0-9]{3}[.-]?[0-9]{2}[.-]?[0-9]{2}", "My phone number is 650.12.34"},
+	}
+
+	for _, tc := range cases {
+		True(t, Regexp(mockT, tc.rx, tc.str))
+		True(t, Regexp(mockT, regexp.MustCompile(tc.rx), tc.str))
+		False(t, NotRegexp(mockT, tc.rx, tc.str))
+		False(t, NotRegexp(mockT, regexp.MustCompile(tc.rx), tc.str))
+	}
+
+	cases = []struct {
+		rx, str string
+	}{
+		{"^asdfastart", "Not the start of the line"},
+		{"end$", "in the end."},
+		{"[0-9]{3}[.-]?[0-9]{2}[.-]?[0-9]{2}", "My phone number is 650.12a.34"},
+	}
+
+	for _, tc := range cases {
+		False(t, Regexp(mockT, tc.rx, tc.str), "Expected \"%s\" to not match \"%s\"", tc.rx, tc.str)
+		False(t, Regexp(mockT, regexp.MustCompile(tc.rx), tc.str))
+		True(t, NotRegexp(mockT, tc.rx, tc.str))
+		True(t, NotRegexp(mockT, regexp.MustCompile(tc.rx), tc.str))
+	}
+}
+
+func testAutogeneratedFunction() {
+	defer func() {
+		if err := recover(); err == nil {
+			panic("did not panic")
+		}
+		CallerInfo()
+	}()
+	t := struct {
+		io.Closer
+	}{}
+	var c io.Closer
+	c = t
+	c.Close()
+}
+
+func TestCallerInfoWithAutogeneratedFunctions(t *testing.T) {
+	NotPanics(t, func() {
+		testAutogeneratedFunction()
+	})
+}
+
+func TestZero(t *testing.T) {
+	mockT := new(testing.T)
+
+	for _, test := range zeros {
+		True(t, Zero(mockT, test, "%#v is not the %v zero value", test, reflect.TypeOf(test)))
+	}
+
+	for _, test := range nonZeros {
+		False(t, Zero(mockT, test, "%#v is not the %v zero value", test, reflect.TypeOf(test)))
+	}
+}
+
+func TestNotZero(t *testing.T) {
+	mockT := new(testing.T)
+
+	for _, test := range zeros {
+		False(t, NotZero(mockT, test, "%#v is not the %v zero value", test, reflect.TypeOf(test)))
+	}
+
+	for _, test := range nonZeros {
+		True(t, NotZero(mockT, test, "%#v is not the %v zero value", test, reflect.TypeOf(test)))
+	}
+}
+
+func TestJSONEq_EqualSONString(t *testing.T) {
+	mockT := new(testing.T)
+	True(t, JSONEq(mockT, `{"hello": "world", "foo": "bar"}`, `{"hello": "world", "foo": "bar"}`))
+}
+
+func TestJSONEq_EquivalentButNotEqual(t *testing.T) {
+	mockT := new(testing.T)
+	True(t, JSONEq(mockT, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`))
+}
+
+func TestJSONEq_HashOfArraysAndHashes(t *testing.T) {
+	mockT := new(testing.T)
+	True(t, JSONEq(mockT, "{\r\n\t\"numeric\": 1.5,\r\n\t\"array\": [{\"foo\": \"bar\"}, 1, \"string\", [\"nested\", \"array\", 5.5]],\r\n\t\"hash\": {\"nested\": \"hash\", \"nested_slice\": [\"this\", \"is\", \"nested\"]},\r\n\t\"string\": \"foo\"\r\n}",
+		"{\r\n\t\"numeric\": 1.5,\r\n\t\"hash\": {\"nested\": \"hash\", \"nested_slice\": [\"this\", \"is\", \"nested\"]},\r\n\t\"string\": \"foo\",\r\n\t\"array\": [{\"foo\": \"bar\"}, 1, \"string\", [\"nested\", \"array\", 5.5]]\r\n}"))
+}
+
+func TestJSONEq_Array(t *testing.T) {
+	mockT := new(testing.T)
+	True(t, JSONEq(mockT, `["foo", {"hello": "world", "nested": "hash"}]`, `["foo", {"nested": "hash", "hello": "world"}]`))
+}
+
+func TestJSONEq_HashAndArrayNotEquivalent(t *testing.T) {
+	mockT := new(testing.T)
+	False(t, JSONEq(mockT, `["foo", {"hello": "world", "nested": "hash"}]`, `{"foo": "bar", {"nested": "hash", "hello": "world"}}`))
+}
+
+func TestJSONEq_HashesNotEquivalent(t *testing.T) {
+	mockT := new(testing.T)
+	False(t, JSONEq(mockT, `{"foo": "bar"}`, `{"foo": "bar", "hello": "world"}`))
+}
+
+func TestJSONEq_ActualIsNotJSON(t *testing.T) {
+	mockT := new(testing.T)
+	False(t, JSONEq(mockT, `{"foo": "bar"}`, "Not JSON"))
+}
+
+func TestJSONEq_ExpectedIsNotJSON(t *testing.T) {
+	mockT := new(testing.T)
+	False(t, JSONEq(mockT, "Not JSON", `{"foo": "bar", "hello": "world"}`))
+}
+
+func TestJSONEq_ExpectedAndActualNotJSON(t *testing.T) {
+	mockT := new(testing.T)
+	False(t, JSONEq(mockT, "Not JSON", "Not JSON"))
+}
+
+func TestJSONEq_ArraysOfDifferentOrder(t *testing.T) {
+	mockT := new(testing.T)
+	False(t, JSONEq(mockT, `["foo", {"hello": "world", "nested": "hash"}]`, `[{ "hello": "world", "nested": "hash"}, "foo"]`))
+}
+
+func TestDiff(t *testing.T) {
+	expected := `
+
+Diff:
+--- Expected
++++ Actual
+@@ -1,3 +1,3 @@
+ (struct { foo string }) {
+- foo: (string) (len=5) "hello"
++ foo: (string) (len=3) "bar"
+ }
+`
+	actual := diff(
+		struct{ foo string }{"hello"},
+		struct{ foo string }{"bar"},
+	)
+	Equal(t, expected, actual)
+
+	expected = `
+
+Diff:
+--- Expected
++++ Actual
+@@ -2,5 +2,5 @@
+  (int) 1,
+- (int) 2,
+  (int) 3,
+- (int) 4
++ (int) 5,
++ (int) 7
+ }
+`
+	actual = diff(
+		[]int{1, 2, 3, 4},
+		[]int{1, 3, 5, 7},
+	)
+	Equal(t, expected, actual)
+
+	expected = `
+
+Diff:
+--- Expected
++++ Actual
+@@ -2,4 +2,4 @@
+  (int) 1,
+- (int) 2,
+- (int) 3
++ (int) 3,
++ (int) 5
+ }
+`
+	actual = diff(
+		[]int{1, 2, 3, 4}[0:3],
+		[]int{1, 3, 5, 7}[0:3],
+	)
+	Equal(t, expected, actual)
+
+	expected = `
+
+Diff:
+--- Expected
++++ Actual
+@@ -1,6 +1,6 @@
+ (map[string]int) (len=4) {
+- (string) (len=4) "four": (int) 4,
++ (string) (len=4) "five": (int) 5,
+  (string) (len=3) "one": (int) 1,
+- (string) (len=5) "three": (int) 3,
+- (string) (len=3) "two": (int) 2
++ (string) (len=5) "seven": (int) 7,
++ (string) (len=5) "three": (int) 3
+ }
+`
+
+	actual = diff(
+		map[string]int{"one": 1, "two": 2, "three": 3, "four": 4},
+		map[string]int{"one": 1, "three": 3, "five": 5, "seven": 7},
+	)
+	Equal(t, expected, actual)
+}
+
+func TestDiffEmptyCases(t *testing.T) {
+	Equal(t, "", diff(nil, nil))
+	Equal(t, "", diff(struct{ foo string }{}, nil))
+	Equal(t, "", diff(nil, struct{ foo string }{}))
+	Equal(t, "", diff(1, 2))
+	Equal(t, "", diff(1, 2))
+	Equal(t, "", diff([]int{1}, []bool{true}))
+}
+
+// Ensure there are no data races
+func TestDiffRace(t *testing.T) {
+	t.Parallel()
+
+	expected := map[string]string{
+		"a": "A",
+		"b": "B",
+		"c": "C",
+	}
+
+	actual := map[string]string{
+		"d": "D",
+		"e": "E",
+		"f": "F",
+	}
+
+	// run diffs in parallel simulating tests with t.Parallel()
+	numRoutines := 10
+	rChans := make([]chan string, numRoutines)
+	for idx := range rChans {
+		rChans[idx] = make(chan string)
+		go func(ch chan string) {
+			defer close(ch)
+			ch <- diff(expected, actual)
+		}(rChans[idx])
+	}
+
+	for _, ch := range rChans {
+		for msg := range ch {
+			NotZero(t, msg) // dummy assert
+		}
+	}
+}
+
+type mockTestingT struct {
+}
+
+func (m *mockTestingT) Errorf(format string, args ...interface{}) {}
+
+func TestFailNowWithPlainTestingT(t *testing.T) {
+	mockT := &mockTestingT{}
+
+	Panics(t, func() {
+		FailNow(mockT, "failed")
+	}, "should panic since mockT is missing FailNow()")
+}
+
+type mockFailNowTestingT struct {
+}
+
+func (m *mockFailNowTestingT) Errorf(format string, args ...interface{}) {}
+
+func (m *mockFailNowTestingT) FailNow() {}
+
+func TestFailNowWithFullTestingT(t *testing.T) {
+	mockT := &mockFailNowTestingT{}
+
+	NotPanics(t, func() {
+		FailNow(mockT, "failed")
+	}, "should call mockT.FailNow() rather than panicking")
+}
diff --git a/vendor/github.com/stretchr/testify/assert/doc.go b/vendor/github.com/stretchr/testify/assert/doc.go
new file mode 100644
index 0000000..c9dccc4
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/doc.go
@@ -0,0 +1,45 @@
+// Package assert provides a set of comprehensive testing tools for use with the normal Go testing system.
+//
+// Example Usage
+//
+// The following is a complete example using assert in a standard test function:
+//    import (
+//      "testing"
+//      "github.com/stretchr/testify/assert"
+//    )
+//
+//    func TestSomething(t *testing.T) {
+//
+//      var a string = "Hello"
+//      var b string = "Hello"
+//
+//      assert.Equal(t, a, b, "The two words should be the same.")
+//
+//    }
+//
+// if you assert many times, use the format below:
+//
+//    import (
+//      "testing"
+//      "github.com/stretchr/testify/assert"
+//    )
+//
+//    func TestSomething(t *testing.T) {
+//      assert := assert.New(t)
+//
+//      var a string = "Hello"
+//      var b string = "Hello"
+//
+//      assert.Equal(a, b, "The two words should be the same.")
+//    }
+//
+// Assertions
+//
+// Assertions allow you to easily write test code, and are global funcs in the `assert` package.
+// All assertion functions take, as the first argument, the `*testing.T` object provided by the
+// testing framework. This allows the assertion funcs to write the failings and other details to
+// the correct place.
+//
+// Every assertion function also takes an optional string message as the final argument,
+// allowing custom error messages to be appended to the message the assertion method outputs.
+package assert
diff --git a/vendor/github.com/stretchr/testify/assert/errors.go b/vendor/github.com/stretchr/testify/assert/errors.go
new file mode 100644
index 0000000..ac9dc9d
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/errors.go
@@ -0,0 +1,10 @@
+package assert
+
+import (
+	"errors"
+)
+
+// AnError is an error instance useful for testing.  If the code does not care
+// about error specifics, and only needs to return the error for example, this
+// error should be used to make the test code more readable.
+var AnError = errors.New("assert.AnError general error for testing")
diff --git a/vendor/github.com/stretchr/testify/assert/forward_assertions.go b/vendor/github.com/stretchr/testify/assert/forward_assertions.go
new file mode 100644
index 0000000..b867e95
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/forward_assertions.go
@@ -0,0 +1,16 @@
+package assert
+
+// Assertions provides assertion methods around the
+// TestingT interface.
+type Assertions struct {
+	t TestingT
+}
+
+// New makes a new Assertions object for the specified TestingT.
+func New(t TestingT) *Assertions {
+	return &Assertions{
+		t: t,
+	}
+}
+
+//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_forward.go.tmpl
diff --git a/vendor/github.com/stretchr/testify/assert/forward_assertions_test.go b/vendor/github.com/stretchr/testify/assert/forward_assertions_test.go
new file mode 100644
index 0000000..22e1df1
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/forward_assertions_test.go
@@ -0,0 +1,611 @@
+package assert
+
+import (
+	"errors"
+	"regexp"
+	"testing"
+	"time"
+)
+
+func TestImplementsWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	if !assert.Implements((*AssertionTesterInterface)(nil), new(AssertionTesterConformingObject)) {
+		t.Error("Implements method should return true: AssertionTesterConformingObject implements AssertionTesterInterface")
+	}
+	if assert.Implements((*AssertionTesterInterface)(nil), new(AssertionTesterNonConformingObject)) {
+		t.Error("Implements method should return false: AssertionTesterNonConformingObject does not implements AssertionTesterInterface")
+	}
+}
+
+func TestIsTypeWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	if !assert.IsType(new(AssertionTesterConformingObject), new(AssertionTesterConformingObject)) {
+		t.Error("IsType should return true: AssertionTesterConformingObject is the same type as AssertionTesterConformingObject")
+	}
+	if assert.IsType(new(AssertionTesterConformingObject), new(AssertionTesterNonConformingObject)) {
+		t.Error("IsType should return false: AssertionTesterConformingObject is not the same type as AssertionTesterNonConformingObject")
+	}
+
+}
+
+func TestEqualWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	if !assert.Equal("Hello World", "Hello World") {
+		t.Error("Equal should return true")
+	}
+	if !assert.Equal(123, 123) {
+		t.Error("Equal should return true")
+	}
+	if !assert.Equal(123.5, 123.5) {
+		t.Error("Equal should return true")
+	}
+	if !assert.Equal([]byte("Hello World"), []byte("Hello World")) {
+		t.Error("Equal should return true")
+	}
+	if !assert.Equal(nil, nil) {
+		t.Error("Equal should return true")
+	}
+}
+
+func TestEqualValuesWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	if !assert.EqualValues(uint32(10), int32(10)) {
+		t.Error("EqualValues should return true")
+	}
+}
+
+func TestNotNilWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	if !assert.NotNil(new(AssertionTesterConformingObject)) {
+		t.Error("NotNil should return true: object is not nil")
+	}
+	if assert.NotNil(nil) {
+		t.Error("NotNil should return false: object is nil")
+	}
+
+}
+
+func TestNilWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	if !assert.Nil(nil) {
+		t.Error("Nil should return true: object is nil")
+	}
+	if assert.Nil(new(AssertionTesterConformingObject)) {
+		t.Error("Nil should return false: object is not nil")
+	}
+
+}
+
+func TestTrueWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	if !assert.True(true) {
+		t.Error("True should return true")
+	}
+	if assert.True(false) {
+		t.Error("True should return false")
+	}
+
+}
+
+func TestFalseWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	if !assert.False(false) {
+		t.Error("False should return true")
+	}
+	if assert.False(true) {
+		t.Error("False should return false")
+	}
+
+}
+
+func TestExactlyWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	a := float32(1)
+	b := float64(1)
+	c := float32(1)
+	d := float32(2)
+
+	if assert.Exactly(a, b) {
+		t.Error("Exactly should return false")
+	}
+	if assert.Exactly(a, d) {
+		t.Error("Exactly should return false")
+	}
+	if !assert.Exactly(a, c) {
+		t.Error("Exactly should return true")
+	}
+
+	if assert.Exactly(nil, a) {
+		t.Error("Exactly should return false")
+	}
+	if assert.Exactly(a, nil) {
+		t.Error("Exactly should return false")
+	}
+
+}
+
+func TestNotEqualWrapper(t *testing.T) {
+
+	assert := New(new(testing.T))
+
+	if !assert.NotEqual("Hello World", "Hello World!") {
+		t.Error("NotEqual should return true")
+	}
+	if !assert.NotEqual(123, 1234) {
+		t.Error("NotEqual should return true")
+	}
+	if !assert.NotEqual(123.5, 123.55) {
+		t.Error("NotEqual should return true")
+	}
+	if !assert.NotEqual([]byte("Hello World"), []byte("Hello World!")) {
+		t.Error("NotEqual should return true")
+	}
+	if !assert.NotEqual(nil, new(AssertionTesterConformingObject)) {
+		t.Error("NotEqual should return true")
+	}
+}
+
+func TestContainsWrapper(t *testing.T) {
+
+	assert := New(new(testing.T))
+	list := []string{"Foo", "Bar"}
+
+	if !assert.Contains("Hello World", "Hello") {
+		t.Error("Contains should return true: \"Hello World\" contains \"Hello\"")
+	}
+	if assert.Contains("Hello World", "Salut") {
+		t.Error("Contains should return false: \"Hello World\" does not contain \"Salut\"")
+	}
+
+	if !assert.Contains(list, "Foo") {
+		t.Error("Contains should return true: \"[\"Foo\", \"Bar\"]\" contains \"Foo\"")
+	}
+	if assert.Contains(list, "Salut") {
+		t.Error("Contains should return false: \"[\"Foo\", \"Bar\"]\" does not contain \"Salut\"")
+	}
+
+}
+
+func TestNotContainsWrapper(t *testing.T) {
+
+	assert := New(new(testing.T))
+	list := []string{"Foo", "Bar"}
+
+	if !assert.NotContains("Hello World", "Hello!") {
+		t.Error("NotContains should return true: \"Hello World\" does not contain \"Hello!\"")
+	}
+	if assert.NotContains("Hello World", "Hello") {
+		t.Error("NotContains should return false: \"Hello World\" contains \"Hello\"")
+	}
+
+	if !assert.NotContains(list, "Foo!") {
+		t.Error("NotContains should return true: \"[\"Foo\", \"Bar\"]\" does not contain \"Foo!\"")
+	}
+	if assert.NotContains(list, "Foo") {
+		t.Error("NotContains should return false: \"[\"Foo\", \"Bar\"]\" contains \"Foo\"")
+	}
+
+}
+
+func TestConditionWrapper(t *testing.T) {
+
+	assert := New(new(testing.T))
+
+	if !assert.Condition(func() bool { return true }, "Truth") {
+		t.Error("Condition should return true")
+	}
+
+	if assert.Condition(func() bool { return false }, "Lie") {
+		t.Error("Condition should return false")
+	}
+
+}
+
+func TestDidPanicWrapper(t *testing.T) {
+
+	if funcDidPanic, _ := didPanic(func() {
+		panic("Panic!")
+	}); !funcDidPanic {
+		t.Error("didPanic should return true")
+	}
+
+	if funcDidPanic, _ := didPanic(func() {
+	}); funcDidPanic {
+		t.Error("didPanic should return false")
+	}
+
+}
+
+func TestPanicsWrapper(t *testing.T) {
+
+	assert := New(new(testing.T))
+
+	if !assert.Panics(func() {
+		panic("Panic!")
+	}) {
+		t.Error("Panics should return true")
+	}
+
+	if assert.Panics(func() {
+	}) {
+		t.Error("Panics should return false")
+	}
+
+}
+
+func TestNotPanicsWrapper(t *testing.T) {
+
+	assert := New(new(testing.T))
+
+	if !assert.NotPanics(func() {
+	}) {
+		t.Error("NotPanics should return true")
+	}
+
+	if assert.NotPanics(func() {
+		panic("Panic!")
+	}) {
+		t.Error("NotPanics should return false")
+	}
+
+}
+
+func TestNoErrorWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	// start with a nil error
+	var err error
+
+	assert.True(mockAssert.NoError(err), "NoError should return True for nil arg")
+
+	// now set an error
+	err = errors.New("Some error")
+
+	assert.False(mockAssert.NoError(err), "NoError with error should return False")
+
+}
+
+func TestErrorWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	// start with a nil error
+	var err error
+
+	assert.False(mockAssert.Error(err), "Error should return False for nil arg")
+
+	// now set an error
+	err = errors.New("Some error")
+
+	assert.True(mockAssert.Error(err), "Error with error should return True")
+
+}
+
+func TestEqualErrorWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	// start with a nil error
+	var err error
+	assert.False(mockAssert.EqualError(err, ""),
+		"EqualError should return false for nil arg")
+
+	// now set an error
+	err = errors.New("some error")
+	assert.False(mockAssert.EqualError(err, "Not some error"),
+		"EqualError should return false for different error string")
+	assert.True(mockAssert.EqualError(err, "some error"),
+		"EqualError should return true")
+}
+
+func TestEmptyWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	assert.True(mockAssert.Empty(""), "Empty string is empty")
+	assert.True(mockAssert.Empty(nil), "Nil is empty")
+	assert.True(mockAssert.Empty([]string{}), "Empty string array is empty")
+	assert.True(mockAssert.Empty(0), "Zero int value is empty")
+	assert.True(mockAssert.Empty(false), "False value is empty")
+
+	assert.False(mockAssert.Empty("something"), "Non Empty string is not empty")
+	assert.False(mockAssert.Empty(errors.New("something")), "Non nil object is not empty")
+	assert.False(mockAssert.Empty([]string{"something"}), "Non empty string array is not empty")
+	assert.False(mockAssert.Empty(1), "Non-zero int value is not empty")
+	assert.False(mockAssert.Empty(true), "True value is not empty")
+
+}
+
+func TestNotEmptyWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	assert.False(mockAssert.NotEmpty(""), "Empty string is empty")
+	assert.False(mockAssert.NotEmpty(nil), "Nil is empty")
+	assert.False(mockAssert.NotEmpty([]string{}), "Empty string array is empty")
+	assert.False(mockAssert.NotEmpty(0), "Zero int value is empty")
+	assert.False(mockAssert.NotEmpty(false), "False value is empty")
+
+	assert.True(mockAssert.NotEmpty("something"), "Non Empty string is not empty")
+	assert.True(mockAssert.NotEmpty(errors.New("something")), "Non nil object is not empty")
+	assert.True(mockAssert.NotEmpty([]string{"something"}), "Non empty string array is not empty")
+	assert.True(mockAssert.NotEmpty(1), "Non-zero int value is not empty")
+	assert.True(mockAssert.NotEmpty(true), "True value is not empty")
+
+}
+
+func TestLenWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	assert.False(mockAssert.Len(nil, 0), "nil does not have length")
+	assert.False(mockAssert.Len(0, 0), "int does not have length")
+	assert.False(mockAssert.Len(true, 0), "true does not have length")
+	assert.False(mockAssert.Len(false, 0), "false does not have length")
+	assert.False(mockAssert.Len('A', 0), "Rune does not have length")
+	assert.False(mockAssert.Len(struct{}{}, 0), "Struct does not have length")
+
+	ch := make(chan int, 5)
+	ch <- 1
+	ch <- 2
+	ch <- 3
+
+	cases := []struct {
+		v interface{}
+		l int
+	}{
+		{[]int{1, 2, 3}, 3},
+		{[...]int{1, 2, 3}, 3},
+		{"ABC", 3},
+		{map[int]int{1: 2, 2: 4, 3: 6}, 3},
+		{ch, 3},
+
+		{[]int{}, 0},
+		{map[int]int{}, 0},
+		{make(chan int), 0},
+
+		{[]int(nil), 0},
+		{map[int]int(nil), 0},
+		{(chan int)(nil), 0},
+	}
+
+	for _, c := range cases {
+		assert.True(mockAssert.Len(c.v, c.l), "%#v have %d items", c.v, c.l)
+	}
+}
+
+func TestWithinDurationWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+	a := time.Now()
+	b := a.Add(10 * time.Second)
+
+	assert.True(mockAssert.WithinDuration(a, b, 10*time.Second), "A 10s difference is within a 10s time difference")
+	assert.True(mockAssert.WithinDuration(b, a, 10*time.Second), "A 10s difference is within a 10s time difference")
+
+	assert.False(mockAssert.WithinDuration(a, b, 9*time.Second), "A 10s difference is not within a 9s time difference")
+	assert.False(mockAssert.WithinDuration(b, a, 9*time.Second), "A 10s difference is not within a 9s time difference")
+
+	assert.False(mockAssert.WithinDuration(a, b, -9*time.Second), "A 10s difference is not within a 9s time difference")
+	assert.False(mockAssert.WithinDuration(b, a, -9*time.Second), "A 10s difference is not within a 9s time difference")
+
+	assert.False(mockAssert.WithinDuration(a, b, -11*time.Second), "A 10s difference is not within a 9s time difference")
+	assert.False(mockAssert.WithinDuration(b, a, -11*time.Second), "A 10s difference is not within a 9s time difference")
+}
+
+func TestInDeltaWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	True(t, assert.InDelta(1.001, 1, 0.01), "|1.001 - 1| <= 0.01")
+	True(t, assert.InDelta(1, 1.001, 0.01), "|1 - 1.001| <= 0.01")
+	True(t, assert.InDelta(1, 2, 1), "|1 - 2| <= 1")
+	False(t, assert.InDelta(1, 2, 0.5), "Expected |1 - 2| <= 0.5 to fail")
+	False(t, assert.InDelta(2, 1, 0.5), "Expected |2 - 1| <= 0.5 to fail")
+	False(t, assert.InDelta("", nil, 1), "Expected non numerals to fail")
+
+	cases := []struct {
+		a, b  interface{}
+		delta float64
+	}{
+		{uint8(2), uint8(1), 1},
+		{uint16(2), uint16(1), 1},
+		{uint32(2), uint32(1), 1},
+		{uint64(2), uint64(1), 1},
+
+		{int(2), int(1), 1},
+		{int8(2), int8(1), 1},
+		{int16(2), int16(1), 1},
+		{int32(2), int32(1), 1},
+		{int64(2), int64(1), 1},
+
+		{float32(2), float32(1), 1},
+		{float64(2), float64(1), 1},
+	}
+
+	for _, tc := range cases {
+		True(t, assert.InDelta(tc.a, tc.b, tc.delta), "Expected |%V - %V| <= %v", tc.a, tc.b, tc.delta)
+	}
+}
+
+func TestInEpsilonWrapper(t *testing.T) {
+	assert := New(new(testing.T))
+
+	cases := []struct {
+		a, b    interface{}
+		epsilon float64
+	}{
+		{uint8(2), uint16(2), .001},
+		{2.1, 2.2, 0.1},
+		{2.2, 2.1, 0.1},
+		{-2.1, -2.2, 0.1},
+		{-2.2, -2.1, 0.1},
+		{uint64(100), uint8(101), 0.01},
+		{0.1, -0.1, 2},
+	}
+
+	for _, tc := range cases {
+		True(t, assert.InEpsilon(tc.a, tc.b, tc.epsilon, "Expected %V and %V to have a relative difference of %v", tc.a, tc.b, tc.epsilon))
+	}
+
+	cases = []struct {
+		a, b    interface{}
+		epsilon float64
+	}{
+		{uint8(2), int16(-2), .001},
+		{uint64(100), uint8(102), 0.01},
+		{2.1, 2.2, 0.001},
+		{2.2, 2.1, 0.001},
+		{2.1, -2.2, 1},
+		{2.1, "bla-bla", 0},
+		{0.1, -0.1, 1.99},
+	}
+
+	for _, tc := range cases {
+		False(t, assert.InEpsilon(tc.a, tc.b, tc.epsilon, "Expected %V and %V to have a relative difference of %v", tc.a, tc.b, tc.epsilon))
+	}
+}
+
+func TestRegexpWrapper(t *testing.T) {
+
+	assert := New(new(testing.T))
+
+	cases := []struct {
+		rx, str string
+	}{
+		{"^start", "start of the line"},
+		{"end$", "in the end"},
+		{"[0-9]{3}[.-]?[0-9]{2}[.-]?[0-9]{2}", "My phone number is 650.12.34"},
+	}
+
+	for _, tc := range cases {
+		True(t, assert.Regexp(tc.rx, tc.str))
+		True(t, assert.Regexp(regexp.MustCompile(tc.rx), tc.str))
+		False(t, assert.NotRegexp(tc.rx, tc.str))
+		False(t, assert.NotRegexp(regexp.MustCompile(tc.rx), tc.str))
+	}
+
+	cases = []struct {
+		rx, str string
+	}{
+		{"^asdfastart", "Not the start of the line"},
+		{"end$", "in the end."},
+		{"[0-9]{3}[.-]?[0-9]{2}[.-]?[0-9]{2}", "My phone number is 650.12a.34"},
+	}
+
+	for _, tc := range cases {
+		False(t, assert.Regexp(tc.rx, tc.str), "Expected \"%s\" to not match \"%s\"", tc.rx, tc.str)
+		False(t, assert.Regexp(regexp.MustCompile(tc.rx), tc.str))
+		True(t, assert.NotRegexp(tc.rx, tc.str))
+		True(t, assert.NotRegexp(regexp.MustCompile(tc.rx), tc.str))
+	}
+}
+
+func TestZeroWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	for _, test := range zeros {
+		assert.True(mockAssert.Zero(test), "Zero should return true for %v", test)
+	}
+
+	for _, test := range nonZeros {
+		assert.False(mockAssert.Zero(test), "Zero should return false for %v", test)
+	}
+}
+
+func TestNotZeroWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	for _, test := range zeros {
+		assert.False(mockAssert.NotZero(test), "Zero should return true for %v", test)
+	}
+
+	for _, test := range nonZeros {
+		assert.True(mockAssert.NotZero(test), "Zero should return false for %v", test)
+	}
+}
+
+func TestJSONEqWrapper_EqualSONString(t *testing.T) {
+	assert := New(new(testing.T))
+	if !assert.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"hello": "world", "foo": "bar"}`) {
+		t.Error("JSONEq should return true")
+	}
+
+}
+
+func TestJSONEqWrapper_EquivalentButNotEqual(t *testing.T) {
+	assert := New(new(testing.T))
+	if !assert.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`) {
+		t.Error("JSONEq should return true")
+	}
+
+}
+
+func TestJSONEqWrapper_HashOfArraysAndHashes(t *testing.T) {
+	assert := New(new(testing.T))
+	if !assert.JSONEq("{\r\n\t\"numeric\": 1.5,\r\n\t\"array\": [{\"foo\": \"bar\"}, 1, \"string\", [\"nested\", \"array\", 5.5]],\r\n\t\"hash\": {\"nested\": \"hash\", \"nested_slice\": [\"this\", \"is\", \"nested\"]},\r\n\t\"string\": \"foo\"\r\n}",
+		"{\r\n\t\"numeric\": 1.5,\r\n\t\"hash\": {\"nested\": \"hash\", \"nested_slice\": [\"this\", \"is\", \"nested\"]},\r\n\t\"string\": \"foo\",\r\n\t\"array\": [{\"foo\": \"bar\"}, 1, \"string\", [\"nested\", \"array\", 5.5]]\r\n}") {
+		t.Error("JSONEq should return true")
+	}
+}
+
+func TestJSONEqWrapper_Array(t *testing.T) {
+	assert := New(new(testing.T))
+	if !assert.JSONEq(`["foo", {"hello": "world", "nested": "hash"}]`, `["foo", {"nested": "hash", "hello": "world"}]`) {
+		t.Error("JSONEq should return true")
+	}
+
+}
+
+func TestJSONEqWrapper_HashAndArrayNotEquivalent(t *testing.T) {
+	assert := New(new(testing.T))
+	if assert.JSONEq(`["foo", {"hello": "world", "nested": "hash"}]`, `{"foo": "bar", {"nested": "hash", "hello": "world"}}`) {
+		t.Error("JSONEq should return false")
+	}
+}
+
+func TestJSONEqWrapper_HashesNotEquivalent(t *testing.T) {
+	assert := New(new(testing.T))
+	if assert.JSONEq(`{"foo": "bar"}`, `{"foo": "bar", "hello": "world"}`) {
+		t.Error("JSONEq should return false")
+	}
+}
+
+func TestJSONEqWrapper_ActualIsNotJSON(t *testing.T) {
+	assert := New(new(testing.T))
+	if assert.JSONEq(`{"foo": "bar"}`, "Not JSON") {
+		t.Error("JSONEq should return false")
+	}
+}
+
+func TestJSONEqWrapper_ExpectedIsNotJSON(t *testing.T) {
+	assert := New(new(testing.T))
+	if assert.JSONEq("Not JSON", `{"foo": "bar", "hello": "world"}`) {
+		t.Error("JSONEq should return false")
+	}
+}
+
+func TestJSONEqWrapper_ExpectedAndActualNotJSON(t *testing.T) {
+	assert := New(new(testing.T))
+	if assert.JSONEq("Not JSON", "Not JSON") {
+		t.Error("JSONEq should return false")
+	}
+}
+
+func TestJSONEqWrapper_ArraysOfDifferentOrder(t *testing.T) {
+	assert := New(new(testing.T))
+	if assert.JSONEq(`["foo", {"hello": "world", "nested": "hash"}]`, `[{ "hello": "world", "nested": "hash"}, "foo"]`) {
+		t.Error("JSONEq should return false")
+	}
+}
diff --git a/vendor/github.com/stretchr/testify/assert/http_assertions.go b/vendor/github.com/stretchr/testify/assert/http_assertions.go
new file mode 100644
index 0000000..fa7ab89
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/http_assertions.go
@@ -0,0 +1,106 @@
+package assert
+
+import (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+)
+
+// httpCode is a helper that returns HTTP code of the response. It returns -1
+// if building a new request fails.
+func httpCode(handler http.HandlerFunc, method, url string, values url.Values) int {
+	w := httptest.NewRecorder()
+	req, err := http.NewRequest(method, url+"?"+values.Encode(), nil)
+	if err != nil {
+		return -1
+	}
+	handler(w, req)
+	return w.Code
+}
+
+// HTTPSuccess asserts that a specified handler returns a success status code.
+//
+//  assert.HTTPSuccess(t, myHandler, "POST", "http://www.google.com", nil)
+//
+// Returns whether the assertion was successful (true) or not (false).
+func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
+	code := httpCode(handler, method, url, values)
+	if code == -1 {
+		return false
+	}
+	return code >= http.StatusOK && code <= http.StatusPartialContent
+}
+
+// HTTPRedirect asserts that a specified handler returns a redirect status code.
+//
+//  assert.HTTPRedirect(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
+//
+// Returns whether the assertion was successful (true) or not (false).
+func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
+	code := httpCode(handler, method, url, values)
+	if code == -1 {
+		return false
+	}
+	return code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
+}
+
+// HTTPError asserts that a specified handler returns an error status code.
+//
+//  assert.HTTPError(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
+//
+// Returns whether the assertion was successful (true) or not (false).
+func HTTPError(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
+	code := httpCode(handler, method, url, values)
+	if code == -1 {
+		return false
+	}
+	return code >= http.StatusBadRequest
+}
+
+// HTTPBody is a helper that returns HTTP body of the response. It returns
+// empty string if building a new request fails.
+func HTTPBody(handler http.HandlerFunc, method, url string, values url.Values) string {
+	w := httptest.NewRecorder()
+	req, err := http.NewRequest(method, url+"?"+values.Encode(), nil)
+	if err != nil {
+		return ""
+	}
+	handler(w, req)
+	return w.Body.String()
+}
+
+// HTTPBodyContains asserts that a specified handler returns a
+// body that contains a string.
+//
+//  assert.HTTPBodyContains(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}) bool {
+	body := HTTPBody(handler, method, url, values)
+
+	contains := strings.Contains(body, fmt.Sprint(str))
+	if !contains {
+		Fail(t, fmt.Sprintf("Expected response body for \"%s\" to contain \"%s\" but found \"%s\"", url+"?"+values.Encode(), str, body))
+	}
+
+	return contains
+}
+
+// HTTPBodyNotContains asserts that a specified handler returns a
+// body that does not contain a string.
+//
+//  assert.HTTPBodyNotContains(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func HTTPBodyNotContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}) bool {
+	body := HTTPBody(handler, method, url, values)
+
+	contains := strings.Contains(body, fmt.Sprint(str))
+	if contains {
+		Fail(t, fmt.Sprintf("Expected response body for \"%s\" to NOT contain \"%s\" but found \"%s\"", url+"?"+values.Encode(), str, body))
+	}
+
+	return !contains
+}
diff --git a/vendor/github.com/stretchr/testify/assert/http_assertions_test.go b/vendor/github.com/stretchr/testify/assert/http_assertions_test.go
new file mode 100644
index 0000000..684c2d5
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/http_assertions_test.go
@@ -0,0 +1,86 @@
+package assert
+
+import (
+	"fmt"
+	"net/http"
+	"net/url"
+	"testing"
+)
+
+func httpOK(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(http.StatusOK)
+}
+
+func httpRedirect(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(http.StatusTemporaryRedirect)
+}
+
+func httpError(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(http.StatusInternalServerError)
+}
+
+func TestHTTPStatuses(t *testing.T) {
+	assert := New(t)
+	mockT := new(testing.T)
+
+	assert.Equal(HTTPSuccess(mockT, httpOK, "GET", "/", nil), true)
+	assert.Equal(HTTPSuccess(mockT, httpRedirect, "GET", "/", nil), false)
+	assert.Equal(HTTPSuccess(mockT, httpError, "GET", "/", nil), false)
+
+	assert.Equal(HTTPRedirect(mockT, httpOK, "GET", "/", nil), false)
+	assert.Equal(HTTPRedirect(mockT, httpRedirect, "GET", "/", nil), true)
+	assert.Equal(HTTPRedirect(mockT, httpError, "GET", "/", nil), false)
+
+	assert.Equal(HTTPError(mockT, httpOK, "GET", "/", nil), false)
+	assert.Equal(HTTPError(mockT, httpRedirect, "GET", "/", nil), false)
+	assert.Equal(HTTPError(mockT, httpError, "GET", "/", nil), true)
+}
+
+func TestHTTPStatusesWrapper(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	assert.Equal(mockAssert.HTTPSuccess(httpOK, "GET", "/", nil), true)
+	assert.Equal(mockAssert.HTTPSuccess(httpRedirect, "GET", "/", nil), false)
+	assert.Equal(mockAssert.HTTPSuccess(httpError, "GET", "/", nil), false)
+
+	assert.Equal(mockAssert.HTTPRedirect(httpOK, "GET", "/", nil), false)
+	assert.Equal(mockAssert.HTTPRedirect(httpRedirect, "GET", "/", nil), true)
+	assert.Equal(mockAssert.HTTPRedirect(httpError, "GET", "/", nil), false)
+
+	assert.Equal(mockAssert.HTTPError(httpOK, "GET", "/", nil), false)
+	assert.Equal(mockAssert.HTTPError(httpRedirect, "GET", "/", nil), false)
+	assert.Equal(mockAssert.HTTPError(httpError, "GET", "/", nil), true)
+}
+
+func httpHelloName(w http.ResponseWriter, r *http.Request) {
+	name := r.FormValue("name")
+	w.Write([]byte(fmt.Sprintf("Hello, %s!", name)))
+}
+
+func TestHttpBody(t *testing.T) {
+	assert := New(t)
+	mockT := new(testing.T)
+
+	assert.True(HTTPBodyContains(mockT, httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "Hello, World!"))
+	assert.True(HTTPBodyContains(mockT, httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "World"))
+	assert.False(HTTPBodyContains(mockT, httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "world"))
+
+	assert.False(HTTPBodyNotContains(mockT, httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "Hello, World!"))
+	assert.False(HTTPBodyNotContains(mockT, httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "World"))
+	assert.True(HTTPBodyNotContains(mockT, httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "world"))
+}
+
+func TestHttpBodyWrappers(t *testing.T) {
+	assert := New(t)
+	mockAssert := New(new(testing.T))
+
+	assert.True(mockAssert.HTTPBodyContains(httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "Hello, World!"))
+	assert.True(mockAssert.HTTPBodyContains(httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "World"))
+	assert.False(mockAssert.HTTPBodyContains(httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "world"))
+
+	assert.False(mockAssert.HTTPBodyNotContains(httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "Hello, World!"))
+	assert.False(mockAssert.HTTPBodyNotContains(httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "World"))
+	assert.True(mockAssert.HTTPBodyNotContains(httpHelloName, "GET", "/", url.Values{"name": []string{"World"}}, "world"))
+
+}
diff --git a/vendor/github.com/stretchr/testify/doc.go b/vendor/github.com/stretchr/testify/doc.go
new file mode 100644
index 0000000..377d5cc
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/doc.go
@@ -0,0 +1,22 @@
+// Package testify is a set of packages that provide many tools for testifying that your code will behave as you intend.
+//
+// testify contains the following packages:
+//
+// The assert package provides a comprehensive set of assertion functions that tie in to the Go testing system.
+//
+// The http package contains tools to make it easier to test http activity using the Go testing system.
+//
+// The mock package provides a system by which it is possible to mock your objects and verify calls are happening as expected.
+//
+// The suite package provides a basic structure for using structs as testing suites, and methods on those structs as tests.  It includes setup/teardown functionality in the way of interfaces.
+package testify
+
+// blank imports help docs.
+import (
+	// assert package
+	_ "github.com/stretchr/testify/assert"
+	// http package
+	_ "github.com/stretchr/testify/http"
+	// mock package
+	_ "github.com/stretchr/testify/mock"
+)
diff --git a/vendor/github.com/stretchr/testify/package_test.go b/vendor/github.com/stretchr/testify/package_test.go
new file mode 100644
index 0000000..7ac5d6d
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/package_test.go
@@ -0,0 +1,12 @@
+package testify
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestImports(t *testing.T) {
+	if assert.Equal(t, 1, 1) != true {
+		t.Error("Something is wrong.")
+	}
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/.gitignore b/vendor/gopkg.in/go-playground/validator.v9/.gitignore
new file mode 100644
index 0000000..792ca00
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/.gitignore
@@ -0,0 +1,29 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
+*.test
+*.out
+*.txt
+cover.html
+README.html
\ No newline at end of file
diff --git a/vendor/gopkg.in/go-playground/validator.v9/LICENSE b/vendor/gopkg.in/go-playground/validator.v9/LICENSE
new file mode 100644
index 0000000..6a2ae9a
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Dean Karn
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/vendor/gopkg.in/go-playground/validator.v9/README.md b/vendor/gopkg.in/go-playground/validator.v9/README.md
new file mode 100644
index 0000000..0259370
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/README.md
@@ -0,0 +1,149 @@
+Package validator
+================
+<img align="right" src="https://raw.githubusercontent.com/go-playground/validator/v9/logo.png">[![Join the chat at https://gitter.im/go-playground/validator](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/go-playground/validator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+![Project status](https://img.shields.io/badge/version-9.9.0-green.svg)
+[![Build Status](https://semaphoreci.com/api/v1/joeybloggs/validator/branches/v9/badge.svg)](https://semaphoreci.com/joeybloggs/validator)
+[![Coverage Status](https://coveralls.io/repos/go-playground/validator/badge.svg?branch=v9&service=github)](https://coveralls.io/github/go-playground/validator?branch=v9)
+[![Go Report Card](https://goreportcard.com/badge/github.com/go-playground/validator)](https://goreportcard.com/report/github.com/go-playground/validator)
+[![GoDoc](https://godoc.org/gopkg.in/go-playground/validator.v9?status.svg)](https://godoc.org/gopkg.in/go-playground/validator.v9)
+![License](https://img.shields.io/dub/l/vibe-d.svg)
+
+Package validator implements value validations for structs and individual fields based on tags.
+
+It has the following **unique** features:
+
+-   Cross Field and Cross Struct validations by using validation tags or custom validators.  
+-   Slice, Array and Map diving, which allows any or all levels of a multidimensional field to be validated.
+-   Ability to dive into both map keys and values for validation  
+-   Handles type interface by determining it's underlying type prior to validation.
+-   Handles custom field types such as sql driver Valuer see [Valuer](https://golang.org/src/database/sql/driver/types.go?s=1210:1293#L29)
+-   Alias validation tags, which allows for mapping of several validations to a single tag for easier defining of validations on structs
+-   Extraction of custom defined Field Name e.g. can specify to extract the JSON name while validating and have it available in the resulting FieldError
+-   Customizable i18n aware error messages.
+-   Default validator for the [gin](https://github.com/gin-gonic/gin) web framework; upgrading from v8 to v9 in gin see [here](https://github.com/go-playground/validator/tree/v9/_examples/gin-upgrading-overriding)
+
+Installation
+------------
+
+Use go get.
+
+	go get gopkg.in/go-playground/validator.v9
+
+Then import the validator package into your own code.
+
+	import "gopkg.in/go-playground/validator.v9"
+
+Error Return Value
+-------
+
+Validation functions return type error
+
+They return type error to avoid the issue discussed in the following, where err is always != nil:
+
+* http://stackoverflow.com/a/29138676/3158232
+* https://github.com/go-playground/validator/issues/134
+
+Validator only InvalidValidationError for bad validation input, nil or ValidationErrors as type error; so, in your code all you need to do is check if the error returned is not nil, and if it's not check if error is InvalidValidationError ( if necessary, most of the time it isn't ) type cast it to type ValidationErrors like so:
+
+```go
+err := validate.Struct(mystruct)
+validationErrors := err.(validator.ValidationErrors)
+ ```
+
+Usage and documentation
+------
+
+Please see http://godoc.org/gopkg.in/go-playground/validator.v9 for detailed usage docs.
+
+##### Examples:
+
+- [Simple](https://github.com/go-playground/validator/blob/v9/_examples/simple/main.go)
+- [Custom Field Types](https://github.com/go-playground/validator/blob/v9/_examples/custom/main.go)
+- [Struct Level](https://github.com/go-playground/validator/blob/v9/_examples/struct-level/main.go)
+- [Translations & Custom Errors](https://github.com/go-playground/validator/blob/v9/_examples/translations/main.go)
+- [Gin upgrade and/or override validator](https://github.com/go-playground/validator/tree/v9/_examples/gin-upgrading-overriding)
+- [wash - an example application putting it all together](https://github.com/bluesuncorp/wash)
+
+Benchmarks
+------
+###### Run on MacBook Pro (15-inch, 2017) Go version go1.9.2 darwin/amd64
+```go
+go test -bench=. -benchmem=true
+BenchmarkFieldSuccess-8                                       	20000000	        79.9 ns/op	       0 B/op	       0 allocs/op
+BenchmarkFieldSuccessParallel-8                               	50000000	        25.0 ns/op	       0 B/op	       0 allocs/op
+BenchmarkFieldFailure-8                                       	 5000000	       281 ns/op	     208 B/op	       4 allocs/op
+BenchmarkFieldFailureParallel-8                               	20000000	        97.0 ns/op	     208 B/op	       4 allocs/op
+BenchmarkFieldArrayDiveSuccess-8                              	 3000000	       591 ns/op	     201 B/op	      11 allocs/op
+BenchmarkFieldArrayDiveSuccessParallel-8                      	10000000	       195 ns/op	     201 B/op	      11 allocs/op
+BenchmarkFieldArrayDiveFailure-8                              	 2000000	       878 ns/op	     412 B/op	      16 allocs/op
+BenchmarkFieldArrayDiveFailureParallel-8                      	 5000000	       274 ns/op	     413 B/op	      16 allocs/op
+BenchmarkFieldMapDiveSuccess-8                                	 1000000	      1279 ns/op	     432 B/op	      18 allocs/op
+BenchmarkFieldMapDiveSuccessParallel-8                        	 5000000	       401 ns/op	     432 B/op	      18 allocs/op
+BenchmarkFieldMapDiveFailure-8                                	 1000000	      1060 ns/op	     512 B/op	      16 allocs/op
+BenchmarkFieldMapDiveFailureParallel-8                        	 5000000	       334 ns/op	     512 B/op	      16 allocs/op
+BenchmarkFieldMapDiveWithKeysSuccess-8                        	 1000000	      1462 ns/op	     480 B/op	      21 allocs/op
+BenchmarkFieldMapDiveWithKeysSuccessParallel-8                	 3000000	       463 ns/op	     480 B/op	      21 allocs/op
+BenchmarkFieldMapDiveWithKeysFailure-8                        	 1000000	      1414 ns/op	     721 B/op	      21 allocs/op
+BenchmarkFieldMapDiveWithKeysFailureParallel-8                	 3000000	       446 ns/op	     721 B/op	      21 allocs/op
+BenchmarkFieldCustomTypeSuccess-8                             	10000000	       211 ns/op	      32 B/op	       2 allocs/op
+BenchmarkFieldCustomTypeSuccessParallel-8                     	20000000	        65.9 ns/op	      32 B/op	       2 allocs/op
+BenchmarkFieldCustomTypeFailure-8                             	 5000000	       270 ns/op	     208 B/op	       4 allocs/op
+BenchmarkFieldCustomTypeFailureParallel-8                     	20000000	        93.3 ns/op	     208 B/op	       4 allocs/op
+BenchmarkFieldOrTagSuccess-8                                  	 2000000	       729 ns/op	      16 B/op	       1 allocs/op
+BenchmarkFieldOrTagSuccessParallel-8                          	 5000000	       367 ns/op	      16 B/op	       1 allocs/op
+BenchmarkFieldOrTagFailure-8                                  	 3000000	       472 ns/op	     224 B/op	       5 allocs/op
+BenchmarkFieldOrTagFailureParallel-8                          	 5000000	       373 ns/op	     224 B/op	       5 allocs/op
+BenchmarkStructLevelValidationSuccess-8                       	10000000	       201 ns/op	      32 B/op	       2 allocs/op
+BenchmarkStructLevelValidationSuccessParallel-8               	20000000	        66.3 ns/op	      32 B/op	       2 allocs/op
+BenchmarkStructLevelValidationFailure-8                       	 3000000	       468 ns/op	     304 B/op	       8 allocs/op
+BenchmarkStructLevelValidationFailureParallel-8               	10000000	       172 ns/op	     304 B/op	       8 allocs/op
+BenchmarkStructSimpleCustomTypeSuccess-8                      	 5000000	       376 ns/op	      32 B/op	       2 allocs/op
+BenchmarkStructSimpleCustomTypeSuccessParallel-8              	20000000	       126 ns/op	      32 B/op	       2 allocs/op
+BenchmarkStructSimpleCustomTypeFailure-8                      	 2000000	       646 ns/op	     424 B/op	       9 allocs/op
+BenchmarkStructSimpleCustomTypeFailureParallel-8              	10000000	       240 ns/op	     440 B/op	      10 allocs/op
+BenchmarkStructFilteredSuccess-8                              	 3000000	       582 ns/op	     288 B/op	       9 allocs/op
+BenchmarkStructFilteredSuccessParallel-8                      	10000000	       198 ns/op	     288 B/op	       9 allocs/op
+BenchmarkStructFilteredFailure-8                              	 3000000	       447 ns/op	     256 B/op	       7 allocs/op
+BenchmarkStructFilteredFailureParallel-8                      	10000000	       156 ns/op	     256 B/op	       7 allocs/op
+BenchmarkStructPartialSuccess-8                               	 3000000	       536 ns/op	     256 B/op	       6 allocs/op
+BenchmarkStructPartialSuccessParallel-8                       	10000000	       175 ns/op	     256 B/op	       6 allocs/op
+BenchmarkStructPartialFailure-8                               	 2000000	       738 ns/op	     480 B/op	      11 allocs/op
+BenchmarkStructPartialFailureParallel-8                       	 5000000	       256 ns/op	     480 B/op	      11 allocs/op
+BenchmarkStructExceptSuccess-8                                	 2000000	       835 ns/op	     496 B/op	      12 allocs/op
+BenchmarkStructExceptSuccessParallel-8                        	10000000	       163 ns/op	     240 B/op	       5 allocs/op
+BenchmarkStructExceptFailure-8                                	 2000000	       682 ns/op	     464 B/op	      10 allocs/op
+BenchmarkStructExceptFailureParallel-8                        	10000000	       244 ns/op	     464 B/op	      10 allocs/op
+BenchmarkStructSimpleCrossFieldSuccess-8                      	 5000000	       392 ns/op	      72 B/op	       3 allocs/op
+BenchmarkStructSimpleCrossFieldSuccessParallel-8              	20000000	       126 ns/op	      72 B/op	       3 allocs/op
+BenchmarkStructSimpleCrossFieldFailure-8                      	 2000000	       611 ns/op	     304 B/op	       8 allocs/op
+BenchmarkStructSimpleCrossFieldFailureParallel-8              	10000000	       214 ns/op	     304 B/op	       8 allocs/op
+BenchmarkStructSimpleCrossStructCrossFieldSuccess-8           	 3000000	       567 ns/op	      80 B/op	       4 allocs/op
+BenchmarkStructSimpleCrossStructCrossFieldSuccessParallel-8   	10000000	       177 ns/op	      80 B/op	       4 allocs/op
+BenchmarkStructSimpleCrossStructCrossFieldFailure-8           	 2000000	       807 ns/op	     320 B/op	       9 allocs/op
+BenchmarkStructSimpleCrossStructCrossFieldFailureParallel-8   	 5000000	       268 ns/op	     320 B/op	       9 allocs/op
+BenchmarkStructSimpleSuccess-8                                	 5000000	       256 ns/op	       0 B/op	       0 allocs/op
+BenchmarkStructSimpleSuccessParallel-8                        	20000000	        76.3 ns/op	       0 B/op	       0 allocs/op
+BenchmarkStructSimpleFailure-8                                	 2000000	       625 ns/op	     424 B/op	       9 allocs/op
+BenchmarkStructSimpleFailureParallel-8                        	10000000	       219 ns/op	     424 B/op	       9 allocs/op
+BenchmarkStructComplexSuccess-8                               	 1000000	      1431 ns/op	     128 B/op	       8 allocs/op
+BenchmarkStructComplexSuccessParallel-8                       	 3000000	       427 ns/op	     128 B/op	       8 allocs/op
+BenchmarkStructComplexFailure-8                               	  300000	      4065 ns/op	    3041 B/op	      53 allocs/op
+BenchmarkStructComplexFailureParallel-8                       	 1000000	      1478 ns/op	    3041 B/op	      53 allocs/op
+```
+
+Complementary Software
+----------------------
+
+Here is a list of software that complements using this library either pre or post validation.
+
+* [form](https://github.com/go-playground/form) - Decodes url.Values into Go value(s) and Encodes Go value(s) into url.Values. Dual Array and Full map support.
+* [mold](https://github.com/go-playground/mold) - A general library to help modify or set data within data structures and other objects
+
+How to Contribute
+------
+
+Make a pull request...
+
+License
+------
+Distributed under MIT License, please see license file within the code for more details.
diff --git a/vendor/gopkg.in/go-playground/validator.v9/baked_in.go b/vendor/gopkg.in/go-playground/validator.v9/baked_in.go
new file mode 100644
index 0000000..6654094
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/baked_in.go
@@ -0,0 +1,1531 @@
+package validator
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"net/url"
+	"reflect"
+	"strings"
+	"time"
+	"unicode/utf8"
+)
+
+// Func accepts a FieldLevel interface for all validation needs. The return
+// value should be true when validation succeeds.
+type Func func(fl FieldLevel) bool
+
+// FuncCtx accepts a context.Context and FieldLevel interface for all
+// validation needs. The return value should be true when validation succeeds.
+type FuncCtx func(ctx context.Context, fl FieldLevel) bool
+
+// wrapFunc wraps noramal Func makes it compatible with FuncCtx
+func wrapFunc(fn Func) FuncCtx {
+	if fn == nil {
+		return nil // be sure not to wrap a bad function.
+	}
+	return func(ctx context.Context, fl FieldLevel) bool {
+		return fn(fl)
+	}
+}
+
+var (
+	restrictedTags = map[string]struct{}{
+		diveTag:           {},
+		keysTag:           {},
+		endKeysTag:        {},
+		structOnlyTag:     {},
+		omitempty:         {},
+		skipValidationTag: {},
+		utf8HexComma:      {},
+		utf8Pipe:          {},
+		noStructLevelTag:  {},
+		requiredTag:       {},
+		isdefault:         {},
+	}
+
+	// BakedInAliasValidators is a default mapping of a single validation tag that
+	// defines a common or complex set of validation(s) to simplify
+	// adding validation to structs.
+	bakedInAliases = map[string]string{
+		"iscolor": "hexcolor|rgb|rgba|hsl|hsla",
+	}
+
+	// BakedInValidators is the default map of ValidationFunc
+	// you can add, remove or even replace items to suite your needs,
+	// or even disregard and use your own map if so desired.
+	bakedInValidators = map[string]Func{
+		"required":        hasValue,
+		"isdefault":       isDefault,
+		"len":             hasLengthOf,
+		"min":             hasMinOf,
+		"max":             hasMaxOf,
+		"eq":              isEq,
+		"ne":              isNe,
+		"lt":              isLt,
+		"lte":             isLte,
+		"gt":              isGt,
+		"gte":             isGte,
+		"eqfield":         isEqField,
+		"eqcsfield":       isEqCrossStructField,
+		"necsfield":       isNeCrossStructField,
+		"gtcsfield":       isGtCrossStructField,
+		"gtecsfield":      isGteCrossStructField,
+		"ltcsfield":       isLtCrossStructField,
+		"ltecsfield":      isLteCrossStructField,
+		"nefield":         isNeField,
+		"gtefield":        isGteField,
+		"gtfield":         isGtField,
+		"ltefield":        isLteField,
+		"ltfield":         isLtField,
+		"alpha":           isAlpha,
+		"alphanum":        isAlphanum,
+		"alphaunicode":    isAlphaUnicode,
+		"alphanumunicode": isAlphanumUnicode,
+		"numeric":         isNumeric,
+		"number":          isNumber,
+		"hexadecimal":     isHexadecimal,
+		"hexcolor":        isHEXColor,
+		"rgb":             isRGB,
+		"rgba":            isRGBA,
+		"hsl":             isHSL,
+		"hsla":            isHSLA,
+		"email":           isEmail,
+		"url":             isURL,
+		"uri":             isURI,
+		"base64":          isBase64,
+		"contains":        contains,
+		"containsany":     containsAny,
+		"containsrune":    containsRune,
+		"excludes":        excludes,
+		"excludesall":     excludesAll,
+		"excludesrune":    excludesRune,
+		"isbn":            isISBN,
+		"isbn10":          isISBN10,
+		"isbn13":          isISBN13,
+		"uuid":            isUUID,
+		"uuid3":           isUUID3,
+		"uuid4":           isUUID4,
+		"uuid5":           isUUID5,
+		"ascii":           isASCII,
+		"printascii":      isPrintableASCII,
+		"multibyte":       hasMultiByteCharacter,
+		"datauri":         isDataURI,
+		"latitude":        isLatitude,
+		"longitude":       isLongitude,
+		"ssn":             isSSN,
+		"ipv4":            isIPv4,
+		"ipv6":            isIPv6,
+		"ip":              isIP,
+		"cidrv4":          isCIDRv4,
+		"cidrv6":          isCIDRv6,
+		"cidr":            isCIDR,
+		"tcp4_addr":       isTCP4AddrResolvable,
+		"tcp6_addr":       isTCP6AddrResolvable,
+		"tcp_addr":        isTCPAddrResolvable,
+		"udp4_addr":       isUDP4AddrResolvable,
+		"udp6_addr":       isUDP6AddrResolvable,
+		"udp_addr":        isUDPAddrResolvable,
+		"ip4_addr":        isIP4AddrResolvable,
+		"ip6_addr":        isIP6AddrResolvable,
+		"ip_addr":         isIPAddrResolvable,
+		"unix_addr":       isUnixAddrResolvable,
+		"mac":             isMAC,
+		"hostname":        isHostname,
+		"fqdn":            isFQDN,
+		"unique":          isUnique,
+	}
+)
+
+// isUnique is the validation function for validating if each array|slice element is unique
+func isUnique(fl FieldLevel) bool {
+
+	field := fl.Field()
+	v := reflect.ValueOf(struct{}{})
+
+	switch field.Kind() {
+	case reflect.Slice, reflect.Array:
+		m := reflect.MakeMap(reflect.MapOf(fl.Field().Type().Elem(), v.Type()))
+
+		for i := 0; i < field.Len(); i++ {
+			m.SetMapIndex(field.Index(i), v)
+		}
+		return field.Len() == m.Len()
+	default:
+		panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+	}
+}
+
+// IsMAC is the validation function for validating if the field's value is a valid MAC address.
+func isMAC(fl FieldLevel) bool {
+
+	_, err := net.ParseMAC(fl.Field().String())
+
+	return err == nil
+}
+
+// IsCIDRv4 is the validation function for validating if the field's value is a valid v4 CIDR address.
+func isCIDRv4(fl FieldLevel) bool {
+
+	ip, _, err := net.ParseCIDR(fl.Field().String())
+
+	return err == nil && ip.To4() != nil
+}
+
+// IsCIDRv6 is the validation function for validating if the field's value is a valid v6 CIDR address.
+func isCIDRv6(fl FieldLevel) bool {
+
+	ip, _, err := net.ParseCIDR(fl.Field().String())
+
+	return err == nil && ip.To4() == nil
+}
+
+// IsCIDR is the validation function for validating if the field's value is a valid v4 or v6 CIDR address.
+func isCIDR(fl FieldLevel) bool {
+
+	_, _, err := net.ParseCIDR(fl.Field().String())
+
+	return err == nil
+}
+
+// IsIPv4 is the validation function for validating if a value is a valid v4 IP address.
+func isIPv4(fl FieldLevel) bool {
+
+	ip := net.ParseIP(fl.Field().String())
+
+	return ip != nil && ip.To4() != nil
+}
+
+// IsIPv6 is the validation function for validating if the field's value is a valid v6 IP address.
+func isIPv6(fl FieldLevel) bool {
+
+	ip := net.ParseIP(fl.Field().String())
+
+	return ip != nil && ip.To4() == nil
+}
+
+// IsIP is the validation function for validating if the field's value is a valid v4 or v6 IP address.
+func isIP(fl FieldLevel) bool {
+
+	ip := net.ParseIP(fl.Field().String())
+
+	return ip != nil
+}
+
+// IsSSN is the validation function for validating if the field's value is a valid SSN.
+func isSSN(fl FieldLevel) bool {
+
+	field := fl.Field()
+
+	if field.Len() != 11 {
+		return false
+	}
+
+	return sSNRegex.MatchString(field.String())
+}
+
+// IsLongitude is the validation function for validating if the field's value is a valid longitude coordinate.
+func isLongitude(fl FieldLevel) bool {
+	return longitudeRegex.MatchString(fl.Field().String())
+}
+
+// IsLatitude is the validation function for validating if the field's value is a valid latitude coordinate.
+func isLatitude(fl FieldLevel) bool {
+	return latitudeRegex.MatchString(fl.Field().String())
+}
+
+// IsDataURI is the validation function for validating if the field's value is a valid data URI.
+func isDataURI(fl FieldLevel) bool {
+
+	uri := strings.SplitN(fl.Field().String(), ",", 2)
+
+	if len(uri) != 2 {
+		return false
+	}
+
+	if !dataURIRegex.MatchString(uri[0]) {
+		return false
+	}
+
+	return base64Regex.MatchString(uri[1])
+}
+
+// HasMultiByteCharacter is the validation function for validating if the field's value has a multi byte character.
+func hasMultiByteCharacter(fl FieldLevel) bool {
+
+	field := fl.Field()
+
+	if field.Len() == 0 {
+		return true
+	}
+
+	return multibyteRegex.MatchString(field.String())
+}
+
+// IsPrintableASCII is the validation function for validating if the field's value is a valid printable ASCII character.
+func isPrintableASCII(fl FieldLevel) bool {
+	return printableASCIIRegex.MatchString(fl.Field().String())
+}
+
+// IsASCII is the validation function for validating if the field's value is a valid ASCII character.
+func isASCII(fl FieldLevel) bool {
+	return aSCIIRegex.MatchString(fl.Field().String())
+}
+
+// IsUUID5 is the validation function for validating if the field's value is a valid v5 UUID.
+func isUUID5(fl FieldLevel) bool {
+	return uUID5Regex.MatchString(fl.Field().String())
+}
+
+// IsUUID4 is the validation function for validating if the field's value is a valid v4 UUID.
+func isUUID4(fl FieldLevel) bool {
+	return uUID4Regex.MatchString(fl.Field().String())
+}
+
+// IsUUID3 is the validation function for validating if the field's value is a valid v3 UUID.
+func isUUID3(fl FieldLevel) bool {
+	return uUID3Regex.MatchString(fl.Field().String())
+}
+
+// IsUUID is the validation function for validating if the field's value is a valid UUID of any version.
+func isUUID(fl FieldLevel) bool {
+	return uUIDRegex.MatchString(fl.Field().String())
+}
+
+// IsISBN is the validation function for validating if the field's value is a valid v10 or v13 ISBN.
+func isISBN(fl FieldLevel) bool {
+	return isISBN10(fl) || isISBN13(fl)
+}
+
+// IsISBN13 is the validation function for validating if the field's value is a valid v13 ISBN.
+func isISBN13(fl FieldLevel) bool {
+
+	s := strings.Replace(strings.Replace(fl.Field().String(), "-", "", 4), " ", "", 4)
+
+	if !iSBN13Regex.MatchString(s) {
+		return false
+	}
+
+	var checksum int32
+	var i int32
+
+	factor := []int32{1, 3}
+
+	for i = 0; i < 12; i++ {
+		checksum += factor[i%2] * int32(s[i]-'0')
+	}
+
+	return (int32(s[12]-'0'))-((10-(checksum%10))%10) == 0
+}
+
+// IsISBN10 is the validation function for validating if the field's value is a valid v10 ISBN.
+func isISBN10(fl FieldLevel) bool {
+
+	s := strings.Replace(strings.Replace(fl.Field().String(), "-", "", 3), " ", "", 3)
+
+	if !iSBN10Regex.MatchString(s) {
+		return false
+	}
+
+	var checksum int32
+	var i int32
+
+	for i = 0; i < 9; i++ {
+		checksum += (i + 1) * int32(s[i]-'0')
+	}
+
+	if s[9] == 'X' {
+		checksum += 10 * 10
+	} else {
+		checksum += 10 * int32(s[9]-'0')
+	}
+
+	return checksum%11 == 0
+}
+
+// ExcludesRune is the validation function for validating that the field's value does not contain the rune specified within the param.
+func excludesRune(fl FieldLevel) bool {
+	return !containsRune(fl)
+}
+
+// ExcludesAll is the validation function for validating that the field's value does not contain any of the characters specified within the param.
+func excludesAll(fl FieldLevel) bool {
+	return !containsAny(fl)
+}
+
+// Excludes is the validation function for validating that the field's value does not contain the text specified within the param.
+func excludes(fl FieldLevel) bool {
+	return !contains(fl)
+}
+
+// ContainsRune is the validation function for validating that the field's value contains the rune specified within the param.
+func containsRune(fl FieldLevel) bool {
+
+	r, _ := utf8.DecodeRuneInString(fl.Param())
+
+	return strings.ContainsRune(fl.Field().String(), r)
+}
+
+// ContainsAny is the validation function for validating that the field's value contains any of the characters specified within the param.
+func containsAny(fl FieldLevel) bool {
+	return strings.ContainsAny(fl.Field().String(), fl.Param())
+}
+
+// Contains is the validation function for validating that the field's value contains the text specified within the param.
+func contains(fl FieldLevel) bool {
+	return strings.Contains(fl.Field().String(), fl.Param())
+}
+
+// IsNeField is the validation function for validating if the current field's value is not equal to the field specified by the param's value.
+func isNeField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	currentField, currentKind, ok := fl.GetStructFieldOK()
+
+	if !ok || currentKind != kind {
+		return true
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return field.Int() != currentField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return field.Uint() != currentField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+		return field.Float() != currentField.Float()
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		return int64(field.Len()) != int64(currentField.Len())
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != currentField.Type() {
+			return true
+		}
+
+		if fieldType == timeType {
+
+			t := currentField.Interface().(time.Time)
+			fieldTime := field.Interface().(time.Time)
+
+			return !fieldTime.Equal(t)
+		}
+
+	}
+
+	// default reflect.String:
+	return field.String() != currentField.String()
+}
+
+// IsNe is the validation function for validating that the field's value does not equal the provided param value.
+func isNe(fl FieldLevel) bool {
+	return !isEq(fl)
+}
+
+// IsLteCrossStructField is the validation function for validating if the current field's value is less than or equal to the field, within a separate struct, specified by the param's value.
+func isLteCrossStructField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	topField, topKind, ok := fl.GetStructFieldOK()
+	if !ok || topKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return field.Int() <= topField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return field.Uint() <= topField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+		return field.Float() <= topField.Float()
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		return int64(field.Len()) <= int64(topField.Len())
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != topField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			fieldTime := field.Interface().(time.Time)
+			topTime := topField.Interface().(time.Time)
+
+			return fieldTime.Before(topTime) || fieldTime.Equal(topTime)
+		}
+	}
+
+	// default reflect.String:
+	return field.String() <= topField.String()
+}
+
+// IsLtCrossStructField is the validation function for validating if the current field's value is less than the field, within a separate struct, specified by the param's value.
+// NOTE: This is exposed for use within your own custom functions and not intended to be called directly.
+func isLtCrossStructField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	topField, topKind, ok := fl.GetStructFieldOK()
+	if !ok || topKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return field.Int() < topField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return field.Uint() < topField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+		return field.Float() < topField.Float()
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		return int64(field.Len()) < int64(topField.Len())
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != topField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			fieldTime := field.Interface().(time.Time)
+			topTime := topField.Interface().(time.Time)
+
+			return fieldTime.Before(topTime)
+		}
+	}
+
+	// default reflect.String:
+	return field.String() < topField.String()
+}
+
+// IsGteCrossStructField is the validation function for validating if the current field's value is greater than or equal to the field, within a separate struct, specified by the param's value.
+func isGteCrossStructField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	topField, topKind, ok := fl.GetStructFieldOK()
+	if !ok || topKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return field.Int() >= topField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return field.Uint() >= topField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+		return field.Float() >= topField.Float()
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		return int64(field.Len()) >= int64(topField.Len())
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != topField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			fieldTime := field.Interface().(time.Time)
+			topTime := topField.Interface().(time.Time)
+
+			return fieldTime.After(topTime) || fieldTime.Equal(topTime)
+		}
+	}
+
+	// default reflect.String:
+	return field.String() >= topField.String()
+}
+
+// IsGtCrossStructField is the validation function for validating if the current field's value is greater than the field, within a separate struct, specified by the param's value.
+func isGtCrossStructField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	topField, topKind, ok := fl.GetStructFieldOK()
+	if !ok || topKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return field.Int() > topField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return field.Uint() > topField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+		return field.Float() > topField.Float()
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		return int64(field.Len()) > int64(topField.Len())
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != topField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			fieldTime := field.Interface().(time.Time)
+			topTime := topField.Interface().(time.Time)
+
+			return fieldTime.After(topTime)
+		}
+	}
+
+	// default reflect.String:
+	return field.String() > topField.String()
+}
+
+// IsNeCrossStructField is the validation function for validating that the current field's value is not equal to the field, within a separate struct, specified by the param's value.
+func isNeCrossStructField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	topField, currentKind, ok := fl.GetStructFieldOK()
+	if !ok || currentKind != kind {
+		return true
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return topField.Int() != field.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return topField.Uint() != field.Uint()
+
+	case reflect.Float32, reflect.Float64:
+		return topField.Float() != field.Float()
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		return int64(topField.Len()) != int64(field.Len())
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != topField.Type() {
+			return true
+		}
+
+		if fieldType == timeType {
+
+			t := field.Interface().(time.Time)
+			fieldTime := topField.Interface().(time.Time)
+
+			return !fieldTime.Equal(t)
+		}
+	}
+
+	// default reflect.String:
+	return topField.String() != field.String()
+}
+
+// IsEqCrossStructField is the validation function for validating that the current field's value is equal to the field, within a separate struct, specified by the param's value.
+func isEqCrossStructField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	topField, topKind, ok := fl.GetStructFieldOK()
+	if !ok || topKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return topField.Int() == field.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return topField.Uint() == field.Uint()
+
+	case reflect.Float32, reflect.Float64:
+		return topField.Float() == field.Float()
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		return int64(topField.Len()) == int64(field.Len())
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != topField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			t := field.Interface().(time.Time)
+			fieldTime := topField.Interface().(time.Time)
+
+			return fieldTime.Equal(t)
+		}
+	}
+
+	// default reflect.String:
+	return topField.String() == field.String()
+}
+
+// IsEqField is the validation function for validating if the current field's value is equal to the field specified by the param's value.
+func isEqField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	currentField, currentKind, ok := fl.GetStructFieldOK()
+	if !ok || currentKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return field.Int() == currentField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return field.Uint() == currentField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+		return field.Float() == currentField.Float()
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		return int64(field.Len()) == int64(currentField.Len())
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != currentField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			t := currentField.Interface().(time.Time)
+			fieldTime := field.Interface().(time.Time)
+
+			return fieldTime.Equal(t)
+		}
+
+	}
+
+	// default reflect.String:
+	return field.String() == currentField.String()
+}
+
+// IsEq is the validation function for validating if the current field's value is equal to the param's value.
+func isEq(fl FieldLevel) bool {
+
+	field := fl.Field()
+	param := fl.Param()
+
+	switch field.Kind() {
+
+	case reflect.String:
+		return field.String() == param
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		p := asInt(param)
+
+		return int64(field.Len()) == p
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		p := asInt(param)
+
+		return field.Int() == p
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		p := asUint(param)
+
+		return field.Uint() == p
+
+	case reflect.Float32, reflect.Float64:
+		p := asFloat(param)
+
+		return field.Float() == p
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
+// IsBase64 is the validation function for validating if the current field's value is a valid base 64.
+func isBase64(fl FieldLevel) bool {
+	return base64Regex.MatchString(fl.Field().String())
+}
+
+// IsURI is the validation function for validating if the current field's value is a valid URI.
+func isURI(fl FieldLevel) bool {
+
+	field := fl.Field()
+
+	switch field.Kind() {
+
+	case reflect.String:
+
+		s := field.String()
+
+		// checks needed as of Go 1.6 because of change https://github.com/golang/go/commit/617c93ce740c3c3cc28cdd1a0d712be183d0b328#diff-6c2d018290e298803c0c9419d8739885L195
+		// emulate browser and strip the '#' suffix prior to validation. see issue-#237
+		if i := strings.Index(s, "#"); i > -1 {
+			s = s[:i]
+		}
+
+		if len(s) == 0 {
+			return false
+		}
+
+		_, err := url.ParseRequestURI(s)
+
+		return err == nil
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
+// IsURL is the validation function for validating if the current field's value is a valid URL.
+func isURL(fl FieldLevel) bool {
+
+	field := fl.Field()
+
+	switch field.Kind() {
+
+	case reflect.String:
+
+		var i int
+		s := field.String()
+
+		// checks needed as of Go 1.6 because of change https://github.com/golang/go/commit/617c93ce740c3c3cc28cdd1a0d712be183d0b328#diff-6c2d018290e298803c0c9419d8739885L195
+		// emulate browser and strip the '#' suffix prior to validation. see issue-#237
+		if i = strings.Index(s, "#"); i > -1 {
+			s = s[:i]
+		}
+
+		if len(s) == 0 {
+			return false
+		}
+
+		url, err := url.ParseRequestURI(s)
+
+		if err != nil || url.Scheme == "" {
+			return false
+		}
+
+		return err == nil
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
+// IsEmail is the validation function for validating if the current field's value is a valid email address.
+func isEmail(fl FieldLevel) bool {
+	return emailRegex.MatchString(fl.Field().String())
+}
+
+// IsHSLA is the validation function for validating if the current field's value is a valid HSLA color.
+func isHSLA(fl FieldLevel) bool {
+	return hslaRegex.MatchString(fl.Field().String())
+}
+
+// IsHSL is the validation function for validating if the current field's value is a valid HSL color.
+func isHSL(fl FieldLevel) bool {
+	return hslRegex.MatchString(fl.Field().String())
+}
+
+// IsRGBA is the validation function for validating if the current field's value is a valid RGBA color.
+func isRGBA(fl FieldLevel) bool {
+	return rgbaRegex.MatchString(fl.Field().String())
+}
+
+// IsRGB is the validation function for validating if the current field's value is a valid RGB color.
+func isRGB(fl FieldLevel) bool {
+	return rgbRegex.MatchString(fl.Field().String())
+}
+
+// IsHEXColor is the validation function for validating if the current field's value is a valid HEX color.
+func isHEXColor(fl FieldLevel) bool {
+	return hexcolorRegex.MatchString(fl.Field().String())
+}
+
+// IsHexadecimal is the validation function for validating if the current field's value is a valid hexadecimal.
+func isHexadecimal(fl FieldLevel) bool {
+	return hexadecimalRegex.MatchString(fl.Field().String())
+}
+
+// IsNumber is the validation function for validating if the current field's value is a valid number.
+func isNumber(fl FieldLevel) bool {
+	return numberRegex.MatchString(fl.Field().String())
+}
+
+// IsNumeric is the validation function for validating if the current field's value is a valid numeric value.
+func isNumeric(fl FieldLevel) bool {
+	return numericRegex.MatchString(fl.Field().String())
+}
+
+// IsAlphanum is the validation function for validating if the current field's value is a valid alphanumeric value.
+func isAlphanum(fl FieldLevel) bool {
+	return alphaNumericRegex.MatchString(fl.Field().String())
+}
+
+// IsAlpha is the validation function for validating if the current field's value is a valid alpha value.
+func isAlpha(fl FieldLevel) bool {
+	return alphaRegex.MatchString(fl.Field().String())
+}
+
+// IsAlphanumUnicode is the validation function for validating if the current field's value is a valid alphanumeric unicode value.
+func isAlphanumUnicode(fl FieldLevel) bool {
+	return alphaUnicodeNumericRegex.MatchString(fl.Field().String())
+}
+
+// IsAlphaUnicode is the validation function for validating if the current field's value is a valid alpha unicode value.
+func isAlphaUnicode(fl FieldLevel) bool {
+	return alphaUnicodeRegex.MatchString(fl.Field().String())
+}
+
+// isDefault is the opposite of required aka hasValue
+func isDefault(fl FieldLevel) bool {
+	return !hasValue(fl)
+}
+
+// HasValue is the validation function for validating if the current field's value is not the default static value.
+func hasValue(fl FieldLevel) bool {
+
+	field := fl.Field()
+
+	switch field.Kind() {
+	case reflect.Slice, reflect.Map, reflect.Ptr, reflect.Interface, reflect.Chan, reflect.Func:
+		return !field.IsNil()
+	default:
+
+		if fl.(*validate).fldIsPointer && field.Interface() != nil {
+			return true
+		}
+
+		return field.IsValid() && field.Interface() != reflect.Zero(field.Type()).Interface()
+	}
+}
+
+// IsGteField is the validation function for validating if the current field's value is greater than or equal to the field specified by the param's value.
+func isGteField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	currentField, currentKind, ok := fl.GetStructFieldOK()
+	if !ok || currentKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+
+		return field.Int() >= currentField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+
+		return field.Uint() >= currentField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+
+		return field.Float() >= currentField.Float()
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != currentField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			t := currentField.Interface().(time.Time)
+			fieldTime := field.Interface().(time.Time)
+
+			return fieldTime.After(t) || fieldTime.Equal(t)
+		}
+	}
+
+	// default reflect.String
+	return len(field.String()) >= len(currentField.String())
+}
+
+// IsGtField is the validation function for validating if the current field's value is greater than the field specified by the param's value.
+func isGtField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	currentField, currentKind, ok := fl.GetStructFieldOK()
+	if !ok || currentKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+
+		return field.Int() > currentField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+
+		return field.Uint() > currentField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+
+		return field.Float() > currentField.Float()
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != currentField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			t := currentField.Interface().(time.Time)
+			fieldTime := field.Interface().(time.Time)
+
+			return fieldTime.After(t)
+		}
+	}
+
+	// default reflect.String
+	return len(field.String()) > len(currentField.String())
+}
+
+// IsGte is the validation function for validating if the current field's value is greater than or equal to the param's value.
+func isGte(fl FieldLevel) bool {
+
+	field := fl.Field()
+	param := fl.Param()
+
+	switch field.Kind() {
+
+	case reflect.String:
+		p := asInt(param)
+
+		return int64(utf8.RuneCountInString(field.String())) >= p
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		p := asInt(param)
+
+		return int64(field.Len()) >= p
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		p := asInt(param)
+
+		return field.Int() >= p
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		p := asUint(param)
+
+		return field.Uint() >= p
+
+	case reflect.Float32, reflect.Float64:
+		p := asFloat(param)
+
+		return field.Float() >= p
+
+	case reflect.Struct:
+
+		if field.Type() == timeType {
+
+			now := time.Now().UTC()
+			t := field.Interface().(time.Time)
+
+			return t.After(now) || t.Equal(now)
+		}
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
+// IsGt is the validation function for validating if the current field's value is greater than the param's value.
+func isGt(fl FieldLevel) bool {
+
+	field := fl.Field()
+	param := fl.Param()
+
+	switch field.Kind() {
+
+	case reflect.String:
+		p := asInt(param)
+
+		return int64(utf8.RuneCountInString(field.String())) > p
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		p := asInt(param)
+
+		return int64(field.Len()) > p
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		p := asInt(param)
+
+		return field.Int() > p
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		p := asUint(param)
+
+		return field.Uint() > p
+
+	case reflect.Float32, reflect.Float64:
+		p := asFloat(param)
+
+		return field.Float() > p
+	case reflect.Struct:
+
+		if field.Type() == timeType {
+
+			return field.Interface().(time.Time).After(time.Now().UTC())
+		}
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
+// HasLengthOf is the validation function for validating if the current field's value is equal to the param's value.
+func hasLengthOf(fl FieldLevel) bool {
+
+	field := fl.Field()
+	param := fl.Param()
+
+	switch field.Kind() {
+
+	case reflect.String:
+		p := asInt(param)
+
+		return int64(utf8.RuneCountInString(field.String())) == p
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		p := asInt(param)
+
+		return int64(field.Len()) == p
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		p := asInt(param)
+
+		return field.Int() == p
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		p := asUint(param)
+
+		return field.Uint() == p
+
+	case reflect.Float32, reflect.Float64:
+		p := asFloat(param)
+
+		return field.Float() == p
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
+// HasMinOf is the validation function for validating if the current field's value is greater than or equal to the param's value.
+func hasMinOf(fl FieldLevel) bool {
+	return isGte(fl)
+}
+
+// IsLteField is the validation function for validating if the current field's value is less than or equal to the field specified by the param's value.
+func isLteField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	currentField, currentKind, ok := fl.GetStructFieldOK()
+	if !ok || currentKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+
+		return field.Int() <= currentField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+
+		return field.Uint() <= currentField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+
+		return field.Float() <= currentField.Float()
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != currentField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			t := currentField.Interface().(time.Time)
+			fieldTime := field.Interface().(time.Time)
+
+			return fieldTime.Before(t) || fieldTime.Equal(t)
+		}
+	}
+
+	// default reflect.String
+	return len(field.String()) <= len(currentField.String())
+}
+
+// IsLtField is the validation function for validating if the current field's value is less than the field specified by the param's value.
+func isLtField(fl FieldLevel) bool {
+
+	field := fl.Field()
+	kind := field.Kind()
+
+	currentField, currentKind, ok := fl.GetStructFieldOK()
+	if !ok || currentKind != kind {
+		return false
+	}
+
+	switch kind {
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+
+		return field.Int() < currentField.Int()
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+
+		return field.Uint() < currentField.Uint()
+
+	case reflect.Float32, reflect.Float64:
+
+		return field.Float() < currentField.Float()
+
+	case reflect.Struct:
+
+		fieldType := field.Type()
+
+		// Not Same underlying type i.e. struct and time
+		if fieldType != currentField.Type() {
+			return false
+		}
+
+		if fieldType == timeType {
+
+			t := currentField.Interface().(time.Time)
+			fieldTime := field.Interface().(time.Time)
+
+			return fieldTime.Before(t)
+		}
+	}
+
+	// default reflect.String
+	return len(field.String()) < len(currentField.String())
+}
+
+// IsLte is the validation function for validating if the current field's value is less than or equal to the param's value.
+func isLte(fl FieldLevel) bool {
+
+	field := fl.Field()
+	param := fl.Param()
+
+	switch field.Kind() {
+
+	case reflect.String:
+		p := asInt(param)
+
+		return int64(utf8.RuneCountInString(field.String())) <= p
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		p := asInt(param)
+
+		return int64(field.Len()) <= p
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		p := asInt(param)
+
+		return field.Int() <= p
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		p := asUint(param)
+
+		return field.Uint() <= p
+
+	case reflect.Float32, reflect.Float64:
+		p := asFloat(param)
+
+		return field.Float() <= p
+
+	case reflect.Struct:
+
+		if field.Type() == timeType {
+
+			now := time.Now().UTC()
+			t := field.Interface().(time.Time)
+
+			return t.Before(now) || t.Equal(now)
+		}
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
+// IsLt is the validation function for validating if the current field's value is less than the param's value.
+func isLt(fl FieldLevel) bool {
+
+	field := fl.Field()
+	param := fl.Param()
+
+	switch field.Kind() {
+
+	case reflect.String:
+		p := asInt(param)
+
+		return int64(utf8.RuneCountInString(field.String())) < p
+
+	case reflect.Slice, reflect.Map, reflect.Array:
+		p := asInt(param)
+
+		return int64(field.Len()) < p
+
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		p := asInt(param)
+
+		return field.Int() < p
+
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		p := asUint(param)
+
+		return field.Uint() < p
+
+	case reflect.Float32, reflect.Float64:
+		p := asFloat(param)
+
+		return field.Float() < p
+
+	case reflect.Struct:
+
+		if field.Type() == timeType {
+
+			return field.Interface().(time.Time).Before(time.Now().UTC())
+		}
+	}
+
+	panic(fmt.Sprintf("Bad field type %T", field.Interface()))
+}
+
+// HasMaxOf is the validation function for validating if the current field's value is less than or equal to the param's value.
+func hasMaxOf(fl FieldLevel) bool {
+	return isLte(fl)
+}
+
+// IsTCP4AddrResolvable is the validation function for validating if the field's value is a resolvable tcp4 address.
+func isTCP4AddrResolvable(fl FieldLevel) bool {
+
+	if !isIP4Addr(fl) {
+		return false
+	}
+
+	_, err := net.ResolveTCPAddr("tcp4", fl.Field().String())
+	return err == nil
+}
+
+// IsTCP6AddrResolvable is the validation function for validating if the field's value is a resolvable tcp6 address.
+func isTCP6AddrResolvable(fl FieldLevel) bool {
+
+	if !isIP6Addr(fl) {
+		return false
+	}
+
+	_, err := net.ResolveTCPAddr("tcp6", fl.Field().String())
+
+	return err == nil
+}
+
+// IsTCPAddrResolvable is the validation function for validating if the field's value is a resolvable tcp address.
+func isTCPAddrResolvable(fl FieldLevel) bool {
+
+	if !isIP4Addr(fl) && !isIP6Addr(fl) {
+		return false
+	}
+
+	_, err := net.ResolveTCPAddr("tcp", fl.Field().String())
+
+	return err == nil
+}
+
+// IsUDP4AddrResolvable is the validation function for validating if the field's value is a resolvable udp4 address.
+func isUDP4AddrResolvable(fl FieldLevel) bool {
+
+	if !isIP4Addr(fl) {
+		return false
+	}
+
+	_, err := net.ResolveUDPAddr("udp4", fl.Field().String())
+
+	return err == nil
+}
+
+// IsUDP6AddrResolvable is the validation function for validating if the field's value is a resolvable udp6 address.
+func isUDP6AddrResolvable(fl FieldLevel) bool {
+
+	if !isIP6Addr(fl) {
+		return false
+	}
+
+	_, err := net.ResolveUDPAddr("udp6", fl.Field().String())
+
+	return err == nil
+}
+
+// IsUDPAddrResolvable is the validation function for validating if the field's value is a resolvable udp address.
+func isUDPAddrResolvable(fl FieldLevel) bool {
+
+	if !isIP4Addr(fl) && !isIP6Addr(fl) {
+		return false
+	}
+
+	_, err := net.ResolveUDPAddr("udp", fl.Field().String())
+
+	return err == nil
+}
+
+// IsIP4AddrResolvable is the validation function for validating if the field's value is a resolvable ip4 address.
+func isIP4AddrResolvable(fl FieldLevel) bool {
+
+	if !isIPv4(fl) {
+		return false
+	}
+
+	_, err := net.ResolveIPAddr("ip4", fl.Field().String())
+
+	return err == nil
+}
+
+// IsIP6AddrResolvable is the validation function for validating if the field's value is a resolvable ip6 address.
+func isIP6AddrResolvable(fl FieldLevel) bool {
+
+	if !isIPv6(fl) {
+		return false
+	}
+
+	_, err := net.ResolveIPAddr("ip6", fl.Field().String())
+
+	return err == nil
+}
+
+// IsIPAddrResolvable is the validation function for validating if the field's value is a resolvable ip address.
+func isIPAddrResolvable(fl FieldLevel) bool {
+
+	if !isIP(fl) {
+		return false
+	}
+
+	_, err := net.ResolveIPAddr("ip", fl.Field().String())
+
+	return err == nil
+}
+
+// IsUnixAddrResolvable is the validation function for validating if the field's value is a resolvable unix address.
+func isUnixAddrResolvable(fl FieldLevel) bool {
+
+	_, err := net.ResolveUnixAddr("unix", fl.Field().String())
+
+	return err == nil
+}
+
+func isIP4Addr(fl FieldLevel) bool {
+
+	val := fl.Field().String()
+
+	if idx := strings.LastIndex(val, ":"); idx != -1 {
+		val = val[0:idx]
+	}
+
+	ip := net.ParseIP(val)
+
+	return ip != nil && ip.To4() != nil
+}
+
+func isIP6Addr(fl FieldLevel) bool {
+
+	val := fl.Field().String()
+
+	if idx := strings.LastIndex(val, ":"); idx != -1 {
+		if idx != 0 && val[idx-1:idx] == "]" {
+			val = val[1 : idx-1]
+		}
+	}
+
+	ip := net.ParseIP(val)
+
+	return ip != nil && ip.To4() == nil
+}
+
+func isHostname(fl FieldLevel) bool {
+	return hostnameRegex.MatchString(fl.Field().String())
+}
+
+func isFQDN(fl FieldLevel) bool {
+	val := fl.Field().String()
+
+	if val == "" {
+		return false
+	}
+
+	if val[len(val)-1] == '.' {
+		val = val[0 : len(val)-1]
+	}
+
+	return (strings.IndexAny(val, ".") > -1) &&
+		hostnameRegex.MatchString(val)
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/benchmarks_test.go b/vendor/gopkg.in/go-playground/validator.v9/benchmarks_test.go
new file mode 100644
index 0000000..3e7e79f
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/benchmarks_test.go
@@ -0,0 +1,1186 @@
+package validator
+
+import (
+	"bytes"
+	sql "database/sql/driver"
+	"testing"
+	"time"
+)
+
+func BenchmarkFieldSuccess(b *testing.B) {
+
+	validate := New()
+
+	s := "1"
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(&s, "len=1")
+	}
+}
+
+func BenchmarkFieldSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	s := "1"
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(&s, "len=1")
+		}
+	})
+}
+
+func BenchmarkFieldFailure(b *testing.B) {
+
+	validate := New()
+
+	s := "12"
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(&s, "len=1")
+	}
+}
+
+func BenchmarkFieldFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	s := "12"
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(&s, "len=1")
+		}
+	})
+}
+
+func BenchmarkFieldArrayDiveSuccess(b *testing.B) {
+
+	validate := New()
+
+	m := []string{"val1", "val2", "val3"}
+
+	b.ResetTimer()
+
+	for n := 0; n < b.N; n++ {
+		validate.Var(m, "required,dive,required")
+	}
+}
+
+func BenchmarkFieldArrayDiveSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	m := []string{"val1", "val2", "val3"}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(m, "required,dive,required")
+		}
+	})
+}
+
+func BenchmarkFieldArrayDiveFailure(b *testing.B) {
+
+	validate := New()
+
+	m := []string{"val1", "", "val3"}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(m, "required,dive,required")
+	}
+}
+
+func BenchmarkFieldArrayDiveFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	m := []string{"val1", "", "val3"}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(m, "required,dive,required")
+		}
+	})
+}
+
+func BenchmarkFieldMapDiveSuccess(b *testing.B) {
+
+	validate := New()
+
+	m := map[string]string{"val1": "val1", "val2": "val2", "val3": "val3"}
+
+	b.ResetTimer()
+
+	for n := 0; n < b.N; n++ {
+		validate.Var(m, "required,dive,required")
+	}
+}
+
+func BenchmarkFieldMapDiveSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	m := map[string]string{"val1": "val1", "val2": "val2", "val3": "val3"}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(m, "required,dive,required")
+		}
+	})
+}
+
+func BenchmarkFieldMapDiveFailure(b *testing.B) {
+
+	validate := New()
+
+	m := map[string]string{"": "", "val3": "val3"}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(m, "required,dive,required")
+	}
+}
+
+func BenchmarkFieldMapDiveFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	m := map[string]string{"": "", "val3": "val3"}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(m, "required,dive,required")
+		}
+	})
+}
+
+func BenchmarkFieldMapDiveWithKeysSuccess(b *testing.B) {
+
+	validate := New()
+
+	m := map[string]string{"val1": "val1", "val2": "val2", "val3": "val3"}
+
+	b.ResetTimer()
+
+	for n := 0; n < b.N; n++ {
+		validate.Var(m, "required,dive,keys,required,endkeys,required")
+	}
+}
+
+func BenchmarkFieldMapDiveWithKeysSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	m := map[string]string{"val1": "val1", "val2": "val2", "val3": "val3"}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(m, "required,dive,keys,required,endkeys,required")
+		}
+	})
+}
+
+func BenchmarkFieldMapDiveWithKeysFailure(b *testing.B) {
+
+	validate := New()
+
+	m := map[string]string{"": "", "val3": "val3"}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(m, "required,dive,keys,required,endkeys,required")
+	}
+}
+
+func BenchmarkFieldMapDiveWithKeysFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	m := map[string]string{"": "", "val3": "val3"}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(m, "required,dive,keys,required,endkeys,required")
+		}
+	})
+}
+
+func BenchmarkFieldCustomTypeSuccess(b *testing.B) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*sql.Valuer)(nil), valuer{})
+
+	val := valuer{
+		Name: "1",
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(val, "len=1")
+	}
+}
+
+func BenchmarkFieldCustomTypeSuccessParallel(b *testing.B) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*sql.Valuer)(nil), valuer{})
+
+	val := valuer{
+		Name: "1",
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(val, "len=1")
+		}
+	})
+}
+
+func BenchmarkFieldCustomTypeFailure(b *testing.B) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*sql.Valuer)(nil), valuer{})
+
+	val := valuer{}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(val, "len=1")
+	}
+}
+
+func BenchmarkFieldCustomTypeFailureParallel(b *testing.B) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*sql.Valuer)(nil), valuer{})
+
+	val := valuer{}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(val, "len=1")
+		}
+	})
+}
+
+func BenchmarkFieldOrTagSuccess(b *testing.B) {
+
+	validate := New()
+
+	s := "rgba(0,0,0,1)"
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(s, "rgb|rgba")
+	}
+}
+
+func BenchmarkFieldOrTagSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	s := "rgba(0,0,0,1)"
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(s, "rgb|rgba")
+		}
+	})
+}
+
+func BenchmarkFieldOrTagFailure(b *testing.B) {
+
+	validate := New()
+
+	s := "#000"
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Var(s, "rgb|rgba")
+	}
+}
+
+func BenchmarkFieldOrTagFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	s := "#000"
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Var(s, "rgb|rgba")
+		}
+	})
+}
+
+func BenchmarkStructLevelValidationSuccess(b *testing.B) {
+
+	validate := New()
+	validate.RegisterStructValidation(StructValidationTestStructSuccess, TestStruct{})
+
+	tst := TestStruct{
+		String: "good value",
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(tst)
+	}
+}
+
+func BenchmarkStructLevelValidationSuccessParallel(b *testing.B) {
+
+	validate := New()
+	validate.RegisterStructValidation(StructValidationTestStructSuccess, TestStruct{})
+
+	tst := TestStruct{
+		String: "good value",
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(tst)
+		}
+	})
+}
+
+func BenchmarkStructLevelValidationFailure(b *testing.B) {
+
+	validate := New()
+	validate.RegisterStructValidation(StructValidationTestStruct, TestStruct{})
+
+	tst := TestStruct{
+		String: "good value",
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(tst)
+	}
+}
+
+func BenchmarkStructLevelValidationFailureParallel(b *testing.B) {
+
+	validate := New()
+	validate.RegisterStructValidation(StructValidationTestStruct, TestStruct{})
+
+	tst := TestStruct{
+		String: "good value",
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(tst)
+		}
+	})
+}
+
+func BenchmarkStructSimpleCustomTypeSuccess(b *testing.B) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*sql.Valuer)(nil), valuer{})
+
+	val := valuer{
+		Name: "1",
+	}
+
+	type Foo struct {
+		Valuer   valuer `validate:"len=1"`
+		IntValue int    `validate:"min=5,max=10"`
+	}
+
+	validFoo := &Foo{Valuer: val, IntValue: 7}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(validFoo)
+	}
+}
+
+func BenchmarkStructSimpleCustomTypeSuccessParallel(b *testing.B) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*sql.Valuer)(nil), valuer{})
+
+	val := valuer{
+		Name: "1",
+	}
+
+	type Foo struct {
+		Valuer   valuer `validate:"len=1"`
+		IntValue int    `validate:"min=5,max=10"`
+	}
+
+	validFoo := &Foo{Valuer: val, IntValue: 7}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(validFoo)
+		}
+	})
+}
+
+func BenchmarkStructSimpleCustomTypeFailure(b *testing.B) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*sql.Valuer)(nil), valuer{})
+
+	val := valuer{}
+
+	type Foo struct {
+		Valuer   valuer `validate:"len=1"`
+		IntValue int    `validate:"min=5,max=10"`
+	}
+
+	validFoo := &Foo{Valuer: val, IntValue: 3}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(validFoo)
+	}
+}
+
+func BenchmarkStructSimpleCustomTypeFailureParallel(b *testing.B) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*sql.Valuer)(nil), valuer{})
+
+	val := valuer{}
+
+	type Foo struct {
+		Valuer   valuer `validate:"len=1"`
+		IntValue int    `validate:"min=5,max=10"`
+	}
+
+	validFoo := &Foo{Valuer: val, IntValue: 3}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(validate.Struct(validFoo))
+		}
+	})
+}
+
+func BenchmarkStructFilteredSuccess(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	byts := []byte("Name")
+
+	fn := func(ns []byte) bool {
+		return !bytes.HasSuffix(ns, byts)
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.StructFiltered(test, fn)
+	}
+}
+
+func BenchmarkStructFilteredSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	byts := []byte("Name")
+
+	fn := func(ns []byte) bool {
+		return !bytes.HasSuffix(ns, byts)
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.StructFiltered(test, fn)
+		}
+	})
+}
+
+func BenchmarkStructFilteredFailure(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	byts := []byte("NickName")
+
+	fn := func(ns []byte) bool {
+		return !bytes.HasSuffix(ns, byts)
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.StructFiltered(test, fn)
+	}
+}
+
+func BenchmarkStructFilteredFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	byts := []byte("NickName")
+
+	fn := func(ns []byte) bool {
+		return !bytes.HasSuffix(ns, byts)
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.StructFiltered(test, fn)
+		}
+	})
+}
+
+func BenchmarkStructPartialSuccess(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.StructPartial(test, "Name")
+	}
+}
+
+func BenchmarkStructPartialSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.StructPartial(test, "Name")
+		}
+	})
+}
+
+func BenchmarkStructPartialFailure(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.StructPartial(test, "NickName")
+	}
+}
+
+func BenchmarkStructPartialFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.StructPartial(test, "NickName")
+		}
+	})
+}
+
+func BenchmarkStructExceptSuccess(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.StructExcept(test, "Nickname")
+	}
+}
+
+func BenchmarkStructExceptSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.StructExcept(test, "NickName")
+		}
+	})
+}
+
+func BenchmarkStructExceptFailure(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.StructExcept(test, "Name")
+	}
+}
+
+func BenchmarkStructExceptFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.StructExcept(test, "Name")
+		}
+	})
+}
+
+func BenchmarkStructSimpleCrossFieldSuccess(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Start time.Time
+		End   time.Time `validate:"gtfield=Start"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * 5)
+
+	test := &Test{
+		Start: now,
+		End:   then,
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(test)
+	}
+}
+
+func BenchmarkStructSimpleCrossFieldSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Start time.Time
+		End   time.Time `validate:"gtfield=Start"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * 5)
+
+	test := &Test{
+		Start: now,
+		End:   then,
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(test)
+		}
+	})
+}
+
+func BenchmarkStructSimpleCrossFieldFailure(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Start time.Time
+		End   time.Time `validate:"gtfield=Start"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * -5)
+
+	test := &Test{
+		Start: now,
+		End:   then,
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(test)
+	}
+}
+
+func BenchmarkStructSimpleCrossFieldFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	type Test struct {
+		Start time.Time
+		End   time.Time `validate:"gtfield=Start"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * -5)
+
+	test := &Test{
+		Start: now,
+		End:   then,
+	}
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(test)
+		}
+	})
+}
+
+func BenchmarkStructSimpleCrossStructCrossFieldSuccess(b *testing.B) {
+
+	validate := New()
+
+	type Inner struct {
+		Start time.Time
+	}
+
+	type Outer struct {
+		Inner     *Inner
+		CreatedAt time.Time `validate:"eqcsfield=Inner.Start"`
+	}
+
+	now := time.Now().UTC()
+
+	inner := &Inner{
+		Start: now,
+	}
+
+	outer := &Outer{
+		Inner:     inner,
+		CreatedAt: now,
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(outer)
+	}
+}
+
+func BenchmarkStructSimpleCrossStructCrossFieldSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	type Inner struct {
+		Start time.Time
+	}
+
+	type Outer struct {
+		Inner     *Inner
+		CreatedAt time.Time `validate:"eqcsfield=Inner.Start"`
+	}
+
+	now := time.Now().UTC()
+
+	inner := &Inner{
+		Start: now,
+	}
+
+	outer := &Outer{
+		Inner:     inner,
+		CreatedAt: now,
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(outer)
+		}
+	})
+}
+
+func BenchmarkStructSimpleCrossStructCrossFieldFailure(b *testing.B) {
+
+	validate := New()
+
+	type Inner struct {
+		Start time.Time
+	}
+
+	type Outer struct {
+		Inner     *Inner
+		CreatedAt time.Time `validate:"eqcsfield=Inner.Start"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * 5)
+
+	inner := &Inner{
+		Start: then,
+	}
+
+	outer := &Outer{
+		Inner:     inner,
+		CreatedAt: now,
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(outer)
+	}
+}
+
+func BenchmarkStructSimpleCrossStructCrossFieldFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	type Inner struct {
+		Start time.Time
+	}
+
+	type Outer struct {
+		Inner     *Inner
+		CreatedAt time.Time `validate:"eqcsfield=Inner.Start"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * 5)
+
+	inner := &Inner{
+		Start: then,
+	}
+
+	outer := &Outer{
+		Inner:     inner,
+		CreatedAt: now,
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(outer)
+		}
+	})
+}
+
+func BenchmarkStructSimpleSuccess(b *testing.B) {
+
+	validate := New()
+
+	type Foo struct {
+		StringValue string `validate:"min=5,max=10"`
+		IntValue    int    `validate:"min=5,max=10"`
+	}
+
+	validFoo := &Foo{StringValue: "Foobar", IntValue: 7}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(validFoo)
+	}
+}
+
+func BenchmarkStructSimpleSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	type Foo struct {
+		StringValue string `validate:"min=5,max=10"`
+		IntValue    int    `validate:"min=5,max=10"`
+	}
+
+	validFoo := &Foo{StringValue: "Foobar", IntValue: 7}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(validFoo)
+		}
+	})
+}
+
+func BenchmarkStructSimpleFailure(b *testing.B) {
+
+	validate := New()
+
+	type Foo struct {
+		StringValue string `validate:"min=5,max=10"`
+		IntValue    int    `validate:"min=5,max=10"`
+	}
+
+	invalidFoo := &Foo{StringValue: "Fo", IntValue: 3}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(invalidFoo)
+	}
+}
+
+func BenchmarkStructSimpleFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	type Foo struct {
+		StringValue string `validate:"min=5,max=10"`
+		IntValue    int    `validate:"min=5,max=10"`
+	}
+
+	invalidFoo := &Foo{StringValue: "Fo", IntValue: 3}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(invalidFoo)
+		}
+	})
+}
+
+func BenchmarkStructComplexSuccess(b *testing.B) {
+
+	validate := New()
+
+	tSuccess := &TestString{
+		Required:  "Required",
+		Len:       "length==10",
+		Min:       "min=1",
+		Max:       "1234567890",
+		MinMax:    "12345",
+		Lt:        "012345678",
+		Lte:       "0123456789",
+		Gt:        "01234567890",
+		Gte:       "0123456789",
+		OmitEmpty: "",
+		Sub: &SubTest{
+			Test: "1",
+		},
+		SubIgnore: &SubTest{
+			Test: "",
+		},
+		Anonymous: struct {
+			A string `validate:"required"`
+		}{
+			A: "1",
+		},
+		Iface: &Impl{
+			F: "123",
+		},
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(tSuccess)
+	}
+}
+
+func BenchmarkStructComplexSuccessParallel(b *testing.B) {
+
+	validate := New()
+
+	tSuccess := &TestString{
+		Required:  "Required",
+		Len:       "length==10",
+		Min:       "min=1",
+		Max:       "1234567890",
+		MinMax:    "12345",
+		Lt:        "012345678",
+		Lte:       "0123456789",
+		Gt:        "01234567890",
+		Gte:       "0123456789",
+		OmitEmpty: "",
+		Sub: &SubTest{
+			Test: "1",
+		},
+		SubIgnore: &SubTest{
+			Test: "",
+		},
+		Anonymous: struct {
+			A string `validate:"required"`
+		}{
+			A: "1",
+		},
+		Iface: &Impl{
+			F: "123",
+		},
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(tSuccess)
+		}
+	})
+}
+
+func BenchmarkStructComplexFailure(b *testing.B) {
+
+	validate := New()
+
+	tFail := &TestString{
+		Required:  "",
+		Len:       "",
+		Min:       "",
+		Max:       "12345678901",
+		MinMax:    "",
+		Lt:        "0123456789",
+		Lte:       "01234567890",
+		Gt:        "1",
+		Gte:       "1",
+		OmitEmpty: "12345678901",
+		Sub: &SubTest{
+			Test: "",
+		},
+		Anonymous: struct {
+			A string `validate:"required"`
+		}{
+			A: "",
+		},
+		Iface: &Impl{
+			F: "12",
+		},
+	}
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		validate.Struct(tFail)
+	}
+}
+
+func BenchmarkStructComplexFailureParallel(b *testing.B) {
+
+	validate := New()
+
+	tFail := &TestString{
+		Required:  "",
+		Len:       "",
+		Min:       "",
+		Max:       "12345678901",
+		MinMax:    "",
+		Lt:        "0123456789",
+		Lte:       "01234567890",
+		Gt:        "1",
+		Gte:       "1",
+		OmitEmpty: "12345678901",
+		Sub: &SubTest{
+			Test: "",
+		},
+		Anonymous: struct {
+			A string `validate:"required"`
+		}{
+			A: "",
+		},
+		Iface: &Impl{
+			F: "12",
+		},
+	}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			validate.Struct(tFail)
+		}
+	})
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/cache.go b/vendor/gopkg.in/go-playground/validator.v9/cache.go
new file mode 100644
index 0000000..8c59e16
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/cache.go
@@ -0,0 +1,316 @@
+package validator
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+	"sync/atomic"
+)
+
+type tagType uint8
+
+const (
+	typeDefault tagType = iota
+	typeOmitEmpty
+	typeIsDefault
+	typeNoStructLevel
+	typeStructOnly
+	typeDive
+	typeOr
+	typeKeys
+	typeEndKeys
+)
+
+const (
+	invalidValidation   = "Invalid validation tag on field '%s'"
+	undefinedValidation = "Undefined validation function '%s' on field '%s'"
+	keysTagNotDefined   = "'" + endKeysTag + "' tag encountered without a corresponding '" + keysTag + "' tag"
+)
+
+type structCache struct {
+	lock sync.Mutex
+	m    atomic.Value // map[reflect.Type]*cStruct
+}
+
+func (sc *structCache) Get(key reflect.Type) (c *cStruct, found bool) {
+	c, found = sc.m.Load().(map[reflect.Type]*cStruct)[key]
+	return
+}
+
+func (sc *structCache) Set(key reflect.Type, value *cStruct) {
+
+	m := sc.m.Load().(map[reflect.Type]*cStruct)
+
+	nm := make(map[reflect.Type]*cStruct, len(m)+1)
+	for k, v := range m {
+		nm[k] = v
+	}
+	nm[key] = value
+	sc.m.Store(nm)
+}
+
+type tagCache struct {
+	lock sync.Mutex
+	m    atomic.Value // map[string]*cTag
+}
+
+func (tc *tagCache) Get(key string) (c *cTag, found bool) {
+	c, found = tc.m.Load().(map[string]*cTag)[key]
+	return
+}
+
+func (tc *tagCache) Set(key string, value *cTag) {
+
+	m := tc.m.Load().(map[string]*cTag)
+
+	nm := make(map[string]*cTag, len(m)+1)
+	for k, v := range m {
+		nm[k] = v
+	}
+	nm[key] = value
+	tc.m.Store(nm)
+}
+
+type cStruct struct {
+	name   string
+	fields []*cField
+	fn     StructLevelFuncCtx
+}
+
+type cField struct {
+	idx        int
+	name       string
+	altName    string
+	namesEqual bool
+	cTags      *cTag
+}
+
+type cTag struct {
+	tag            string
+	aliasTag       string
+	actualAliasTag string
+	param          string
+	typeof         tagType
+	keys           *cTag // only populated when using tag's 'keys' and 'endkeys' for map key validation
+	next           *cTag
+	hasTag         bool
+	hasAlias       bool
+	fn             FuncCtx
+}
+
+func (v *Validate) extractStructCache(current reflect.Value, sName string) *cStruct {
+
+	v.structCache.lock.Lock()
+	defer v.structCache.lock.Unlock() // leave as defer! because if inner panics, it will never get unlocked otherwise!
+
+	typ := current.Type()
+
+	// could have been multiple trying to access, but once first is done this ensures struct
+	// isn't parsed again.
+	cs, ok := v.structCache.Get(typ)
+	if ok {
+		return cs
+	}
+
+	cs = &cStruct{name: sName, fields: make([]*cField, 0), fn: v.structLevelFuncs[typ]}
+
+	numFields := current.NumField()
+
+	var ctag *cTag
+	var fld reflect.StructField
+	var tag string
+	var customName string
+
+	for i := 0; i < numFields; i++ {
+
+		fld = typ.Field(i)
+
+		if !fld.Anonymous && len(fld.PkgPath) > 0 {
+			continue
+		}
+
+		tag = fld.Tag.Get(v.tagName)
+
+		if tag == skipValidationTag {
+			continue
+		}
+
+		customName = fld.Name
+
+		if v.hasTagNameFunc {
+
+			name := v.tagNameFunc(fld)
+
+			if len(name) > 0 {
+				customName = name
+			}
+		}
+
+		// NOTE: cannot use shared tag cache, because tags may be equal, but things like alias may be different
+		// and so only struct level caching can be used instead of combined with Field tag caching
+
+		if len(tag) > 0 {
+			ctag, _ = v.parseFieldTagsRecursive(tag, fld.Name, "", false)
+		} else {
+			// even if field doesn't have validations need cTag for traversing to potential inner/nested
+			// elements of the field.
+			ctag = new(cTag)
+		}
+
+		cs.fields = append(cs.fields, &cField{
+			idx:        i,
+			name:       fld.Name,
+			altName:    customName,
+			cTags:      ctag,
+			namesEqual: fld.Name == customName,
+		})
+	}
+
+	v.structCache.Set(typ, cs)
+
+	return cs
+}
+
+func (v *Validate) parseFieldTagsRecursive(tag string, fieldName string, alias string, hasAlias bool) (firstCtag *cTag, current *cTag) {
+
+	var t string
+	var ok bool
+	noAlias := len(alias) == 0
+	tags := strings.Split(tag, tagSeparator)
+
+	for i := 0; i < len(tags); i++ {
+
+		t = tags[i]
+
+		if noAlias {
+			alias = t
+		}
+
+		// check map for alias and process new tags, otherwise process as usual
+		if tagsVal, found := v.aliases[t]; found {
+			if i == 0 {
+				firstCtag, current = v.parseFieldTagsRecursive(tagsVal, fieldName, t, true)
+			} else {
+				next, curr := v.parseFieldTagsRecursive(tagsVal, fieldName, t, true)
+				current.next, current = next, curr
+
+			}
+
+			continue
+		}
+
+		var prevTag tagType
+
+		if i == 0 {
+			current = &cTag{aliasTag: alias, hasAlias: hasAlias, hasTag: true}
+			firstCtag = current
+		} else {
+			prevTag = current.typeof
+			current.next = &cTag{aliasTag: alias, hasAlias: hasAlias, hasTag: true}
+			current = current.next
+		}
+
+		switch t {
+
+		case diveTag:
+			current.typeof = typeDive
+			continue
+
+		case keysTag:
+			current.typeof = typeKeys
+
+			if i == 0 || prevTag != typeDive {
+				panic(fmt.Sprintf("'%s' tag must be immediately preceeded by the '%s' tag", keysTag, diveTag))
+			}
+
+			current.typeof = typeKeys
+
+			// need to pass along only keys tag
+			// need to increment i to skip over the keys tags
+			b := make([]byte, 0, 64)
+
+			i++
+
+			for ; i < len(tags); i++ {
+
+				b = append(b, tags[i]...)
+				b = append(b, ',')
+
+				if tags[i] == endKeysTag {
+					break
+				}
+			}
+
+			current.keys, _ = v.parseFieldTagsRecursive(string(b[:len(b)-1]), fieldName, "", false)
+			continue
+
+		case endKeysTag:
+			current.typeof = typeEndKeys
+
+			// if there are more in tags then there was no keysTag defined
+			// and an error should be thrown
+			if i != len(tags)-1 {
+				panic(keysTagNotDefined)
+			}
+			return
+
+		case omitempty:
+			current.typeof = typeOmitEmpty
+			continue
+
+		case structOnlyTag:
+			current.typeof = typeStructOnly
+			continue
+
+		case noStructLevelTag:
+			current.typeof = typeNoStructLevel
+			continue
+
+		default:
+
+			if t == isdefault {
+				current.typeof = typeIsDefault
+			}
+
+			// if a pipe character is needed within the param you must use the utf8Pipe representation "0x7C"
+			orVals := strings.Split(t, orSeparator)
+
+			for j := 0; j < len(orVals); j++ {
+
+				vals := strings.SplitN(orVals[j], tagKeySeparator, 2)
+
+				if noAlias {
+					alias = vals[0]
+					current.aliasTag = alias
+				} else {
+					current.actualAliasTag = t
+				}
+
+				if j > 0 {
+					current.next = &cTag{aliasTag: alias, actualAliasTag: current.actualAliasTag, hasAlias: hasAlias, hasTag: true}
+					current = current.next
+				}
+
+				current.tag = vals[0]
+				if len(current.tag) == 0 {
+					panic(strings.TrimSpace(fmt.Sprintf(invalidValidation, fieldName)))
+				}
+
+				if current.fn, ok = v.validations[current.tag]; !ok {
+					panic(strings.TrimSpace(fmt.Sprintf(undefinedValidation, current.tag, fieldName)))
+				}
+
+				if len(orVals) > 1 {
+					current.typeof = typeOr
+				}
+
+				if len(vals) > 1 {
+					current.param = strings.Replace(strings.Replace(vals[1], utf8HexComma, ",", -1), utf8Pipe, "|", -1)
+				}
+			}
+		}
+	}
+
+	return
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/doc.go b/vendor/gopkg.in/go-playground/validator.v9/doc.go
new file mode 100644
index 0000000..d3a69f7
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/doc.go
@@ -0,0 +1,891 @@
+/*
+Package validator implements value validations for structs and individual fields
+based on tags.
+
+It can also handle Cross-Field and Cross-Struct validation for nested structs
+and has the ability to dive into arrays and maps of any type.
+
+see more examples https://github.com/go-playground/validator/tree/v9/_examples
+
+Validation Functions Return Type error
+
+Doing things this way is actually the way the standard library does, see the
+file.Open method here:
+
+	https://golang.org/pkg/os/#Open.
+
+The authors return type "error" to avoid the issue discussed in the following,
+where err is always != nil:
+
+	http://stackoverflow.com/a/29138676/3158232
+	https://github.com/go-playground/validator/issues/134
+
+Validator only InvalidValidationError for bad validation input, nil or
+ValidationErrors as type error; so, in your code all you need to do is check
+if the error returned is not nil, and if it's not check if error is
+InvalidValidationError ( if necessary, most of the time it isn't ) type cast
+it to type ValidationErrors like so err.(validator.ValidationErrors).
+
+Custom Validation Functions
+
+Custom Validation functions can be added. Example:
+
+	// Structure
+	func customFunc(fl FieldLevel) bool {
+
+		if fl.Field().String() == "invalid" {
+			return false
+		}
+
+		return true
+	}
+
+	validate.RegisterValidation("custom tag name", customFunc)
+	// NOTES: using the same tag name as an existing function
+	//        will overwrite the existing one
+
+Cross-Field Validation
+
+Cross-Field Validation can be done via the following tags:
+	- eqfield
+	- nefield
+	- gtfield
+	- gtefield
+	- ltfield
+	- ltefield
+	- eqcsfield
+	- necsfield
+	- gtcsfield
+	- gtecsfield
+	- ltcsfield
+	- ltecsfield
+
+If, however, some custom cross-field validation is required, it can be done
+using a custom validation.
+
+Why not just have cross-fields validation tags (i.e. only eqcsfield and not
+eqfield)?
+
+The reason is efficiency. If you want to check a field within the same struct
+"eqfield" only has to find the field on the same struct (1 level). But, if we
+used "eqcsfield" it could be multiple levels down. Example:
+
+	type Inner struct {
+		StartDate time.Time
+	}
+
+	type Outer struct {
+		InnerStructField *Inner
+		CreatedAt time.Time      `validate:"ltecsfield=InnerStructField.StartDate"`
+	}
+
+	now := time.Now()
+
+	inner := &Inner{
+		StartDate: now,
+	}
+
+	outer := &Outer{
+		InnerStructField: inner,
+		CreatedAt: now,
+	}
+
+	errs := validate.Struct(outer)
+
+	// NOTE: when calling validate.Struct(val) topStruct will be the top level struct passed
+	//       into the function
+	//       when calling validate.FieldWithValue(val, field, tag) val will be
+	//       whatever you pass, struct, field...
+	//       when calling validate.Field(field, tag) val will be nil
+
+Multiple Validators
+
+Multiple validators on a field will process in the order defined. Example:
+
+	type Test struct {
+		Field `validate:"max=10,min=1"`
+	}
+
+	// max will be checked then min
+
+Bad Validator definitions are not handled by the library. Example:
+
+	type Test struct {
+		Field `validate:"min=10,max=0"`
+	}
+
+	// this definition of min max will never succeed
+
+Using Validator Tags
+
+Baked In Cross-Field validation only compares fields on the same struct.
+If Cross-Field + Cross-Struct validation is needed you should implement your
+own custom validator.
+
+Comma (",") is the default separator of validation tags. If you wish to
+have a comma included within the parameter (i.e. excludesall=,) you will need to
+use the UTF-8 hex representation 0x2C, which is replaced in the code as a comma,
+so the above will become excludesall=0x2C.
+
+	type Test struct {
+		Field `validate:"excludesall=,"`    // BAD! Do not include a comma.
+		Field `validate:"excludesall=0x2C"` // GOOD! Use the UTF-8 hex representation.
+	}
+
+Pipe ("|") is the default separator of validation tags. If you wish to
+have a pipe included within the parameter i.e. excludesall=| you will need to
+use the UTF-8 hex representation 0x7C, which is replaced in the code as a pipe,
+so the above will become excludesall=0x7C
+
+	type Test struct {
+		Field `validate:"excludesall=|"`    // BAD! Do not include a a pipe!
+		Field `validate:"excludesall=0x7C"` // GOOD! Use the UTF-8 hex representation.
+	}
+
+
+Baked In Validators and Tags
+
+Here is a list of the current built in validators:
+
+
+Skip Field
+
+Tells the validation to skip this struct field; this is particularly
+handy in ignoring embedded structs from being validated. (Usage: -)
+	Usage: -
+
+
+Or Operator
+
+This is the 'or' operator allowing multiple validators to be used and
+accepted. (Usage: rbg|rgba) <-- this would allow either rgb or rgba
+colors to be accepted. This can also be combined with 'and' for example
+( Usage: omitempty,rgb|rgba)
+
+	Usage: |
+
+StructOnly
+
+When a field that is a nested struct is encountered, and contains this flag
+any validation on the nested struct will be run, but none of the nested
+struct fields will be validated. This is usefull if inside of you program
+you know the struct will be valid, but need to verify it has been assigned.
+NOTE: only "required" and "omitempty" can be used on a struct itself.
+
+	Usage: structonly
+
+NoStructLevel
+
+Same as structonly tag except that any struct level validations will not run.
+
+	Usage: nostructlevel
+
+Omit Empty
+
+Allows conditional validation, for example if a field is not set with
+a value (Determined by the "required" validator) then other validation
+such as min or max won't run, but if a value is set validation will run.
+
+	Usage: omitempty
+
+Dive
+
+This tells the validator to dive into a slice, array or map and validate that
+level of the slice, array or map with the validation tags that follow.
+Multidimensional nesting is also supported, each level you wish to dive will
+require another dive tag. dive has some sub-tags, 'keys' & 'endkeys', please see
+the Keys & EndKeys section just below.
+
+	Usage: dive
+
+Example #1
+
+	[][]string with validation tag "gt=0,dive,len=1,dive,required"
+	// gt=0 will be applied to []
+	// len=1 will be applied to []string
+	// required will be applied to string
+
+Example #2
+
+	[][]string with validation tag "gt=0,dive,dive,required"
+	// gt=0 will be applied to []
+	// []string will be spared validation
+	// required will be applied to string
+
+Keys & EndKeys
+
+These are to be used together directly after the dive tag and tells the validator
+that anything between 'keys' and 'endkeys' applies to the keys of a map and not the
+values; think of it like the 'dive' tag, but for map keys instead of values.
+Multidimensional nesting is also supported, each level you wish to validate will
+require another 'keys' and 'endkeys' tag. These tags are only valid for maps.
+
+	Usage: dive,keys,othertagvalidation(s),endkeys,valuevalidationtags
+
+Example #1
+
+	map[string]string with validation tag "gt=0,dive,keys,eg=1|eq=2,endkeys,required"
+	// gt=0 will be applied to the map itself
+	// eg=1|eq=2 will be applied to the map keys
+	// required will be applied to map values
+
+Example #2
+
+	map[[2]string]string with validation tag "gt=0,dive,keys,dive,eq=1|eq=2,endkeys,required"
+	// gt=0 will be applied to the map itself
+	// eg=1|eq=2 will be applied to each array element in the the map keys
+	// required will be applied to map values
+
+Required
+
+This validates that the value is not the data types default zero value.
+For numbers ensures value is not zero. For strings ensures value is
+not "". For slices, maps, pointers, interfaces, channels and functions
+ensures the value is not nil.
+
+	Usage: required
+
+Is Default
+
+This validates that the value is the default value and is almost the
+opposite of required.
+
+	Usage: isdefault
+
+Length
+
+For numbers, length will ensure that the value is
+equal to the parameter given. For strings, it checks that
+the string length is exactly that number of characters. For slices,
+arrays, and maps, validates the number of items.
+
+	Usage: len=10
+
+Maximum
+
+For numbers, max will ensure that the value is
+less than or equal to the parameter given. For strings, it checks
+that the string length is at most that number of characters. For
+slices, arrays, and maps, validates the number of items.
+
+	Usage: max=10
+
+Minimum
+
+For numbers, min will ensure that the value is
+greater or equal to the parameter given. For strings, it checks that
+the string length is at least that number of characters. For slices,
+arrays, and maps, validates the number of items.
+
+	Usage: min=10
+
+Equals
+
+For strings & numbers, eq will ensure that the value is
+equal to the parameter given. For slices, arrays, and maps,
+validates the number of items.
+
+	Usage: eq=10
+
+Not Equal
+
+For strings & numbers, ne will ensure that the value is not
+equal to the parameter given. For slices, arrays, and maps,
+validates the number of items.
+
+	Usage: ne=10
+
+Greater Than
+
+For numbers, this will ensure that the value is greater than the
+parameter given. For strings, it checks that the string length
+is greater than that number of characters. For slices, arrays
+and maps it validates the number of items.
+
+Example #1
+
+	Usage: gt=10
+
+Example #2 (time.Time)
+
+For time.Time ensures the time value is greater than time.Now.UTC().
+
+	Usage: gt
+
+Greater Than or Equal
+
+Same as 'min' above. Kept both to make terminology with 'len' easier.
+
+
+Example #1
+
+	Usage: gte=10
+
+Example #2 (time.Time)
+
+For time.Time ensures the time value is greater than or equal to time.Now.UTC().
+
+	Usage: gte
+
+Less Than
+
+For numbers, this will ensure that the value is less than the parameter given.
+For strings, it checks that the string length is less than that number of
+characters. For slices, arrays, and maps it validates the number of items.
+
+Example #1
+
+	Usage: lt=10
+
+Example #2 (time.Time)
+For time.Time ensures the time value is less than time.Now.UTC().
+
+	Usage: lt
+
+Less Than or Equal
+
+Same as 'max' above. Kept both to make terminology with 'len' easier.
+
+Example #1
+
+	Usage: lte=10
+
+Example #2 (time.Time)
+
+For time.Time ensures the time value is less than or equal to time.Now.UTC().
+
+	Usage: lte
+
+Field Equals Another Field
+
+This will validate the field value against another fields value either within
+a struct or passed in field.
+
+Example #1:
+
+	// Validation on Password field using:
+	Usage: eqfield=ConfirmPassword
+
+Example #2:
+
+	// Validating by field:
+	validate.FieldWithValue(password, confirmpassword, "eqfield")
+
+Field Equals Another Field (relative)
+
+This does the same as eqfield except that it validates the field provided relative
+to the top level struct.
+
+	Usage: eqcsfield=InnerStructField.Field)
+
+Field Does Not Equal Another Field
+
+This will validate the field value against another fields value either within
+a struct or passed in field.
+
+Examples:
+
+	// Confirm two colors are not the same:
+	//
+	// Validation on Color field:
+	Usage: nefield=Color2
+
+	// Validating by field:
+	validate.FieldWithValue(color1, color2, "nefield")
+
+Field Does Not Equal Another Field (relative)
+
+This does the same as nefield except that it validates the field provided
+relative to the top level struct.
+
+	Usage: necsfield=InnerStructField.Field
+
+Field Greater Than Another Field
+
+Only valid for Numbers and time.Time types, this will validate the field value
+against another fields value either within a struct or passed in field.
+usage examples are for validation of a Start and End date:
+
+Example #1:
+
+	// Validation on End field using:
+	validate.Struct Usage(gtfield=Start)
+
+Example #2:
+
+	// Validating by field:
+	validate.FieldWithValue(start, end, "gtfield")
+
+
+Field Greater Than Another Relative Field
+
+This does the same as gtfield except that it validates the field provided
+relative to the top level struct.
+
+	Usage: gtcsfield=InnerStructField.Field
+
+Field Greater Than or Equal To Another Field
+
+Only valid for Numbers and time.Time types, this will validate the field value
+against another fields value either within a struct or passed in field.
+usage examples are for validation of a Start and End date:
+
+Example #1:
+
+	// Validation on End field using:
+	validate.Struct Usage(gtefield=Start)
+
+Example #2:
+
+	// Validating by field:
+	validate.FieldWithValue(start, end, "gtefield")
+
+Field Greater Than or Equal To Another Relative Field
+
+This does the same as gtefield except that it validates the field provided relative
+to the top level struct.
+
+	Usage: gtecsfield=InnerStructField.Field
+
+Less Than Another Field
+
+Only valid for Numbers and time.Time types, this will validate the field value
+against another fields value either within a struct or passed in field.
+usage examples are for validation of a Start and End date:
+
+Example #1:
+
+	// Validation on End field using:
+	validate.Struct Usage(ltfield=Start)
+
+Example #2:
+
+	// Validating by field:
+	validate.FieldWithValue(start, end, "ltfield")
+
+Less Than Another Relative Field
+
+This does the same as ltfield except that it validates the field provided relative
+to the top level struct.
+
+	Usage: ltcsfield=InnerStructField.Field
+
+Less Than or Equal To Another Field
+
+Only valid for Numbers and time.Time types, this will validate the field value
+against another fields value either within a struct or passed in field.
+usage examples are for validation of a Start and End date:
+
+Example #1:
+
+	// Validation on End field using:
+	validate.Struct Usage(ltefield=Start)
+
+Example #2:
+
+	// Validating by field:
+	validate.FieldWithValue(start, end, "ltefield")
+
+Less Than or Equal To Another Relative Field
+
+This does the same as ltefield except that it validates the field provided relative
+to the top level struct.
+
+	Usage: ltecsfield=InnerStructField.Field
+
+Unique
+
+For arrays & slices, unique will ensure that there are no duplicates.
+
+	Usage: unique
+
+Alpha Only
+
+This validates that a string value contains ASCII alpha characters only
+
+	Usage: alpha
+
+Alphanumeric
+
+This validates that a string value contains ASCII alphanumeric characters only
+
+	Usage: alphanum
+
+Alpha Unicode
+
+This validates that a string value contains unicode alpha characters only
+
+	Usage: alphaunicode
+
+Alphanumeric Unicode
+
+This validates that a string value contains unicode alphanumeric characters only
+
+	Usage: alphanumunicode
+
+Numeric
+
+This validates that a string value contains a basic numeric value.
+basic excludes exponents etc...
+
+	Usage: numeric
+
+Hexadecimal String
+
+This validates that a string value contains a valid hexadecimal.
+
+	Usage: hexadecimal
+
+Hexcolor String
+
+This validates that a string value contains a valid hex color including
+hashtag (#)
+
+		Usage: hexcolor
+
+RGB String
+
+This validates that a string value contains a valid rgb color
+
+	Usage: rgb
+
+RGBA String
+
+This validates that a string value contains a valid rgba color
+
+	Usage: rgba
+
+HSL String
+
+This validates that a string value contains a valid hsl color
+
+	Usage: hsl
+
+HSLA String
+
+This validates that a string value contains a valid hsla color
+
+	Usage: hsla
+
+E-mail String
+
+This validates that a string value contains a valid email
+This may not conform to all possibilities of any rfc standard, but neither
+does any email provider accept all posibilities.
+
+	Usage: email
+
+URL String
+
+This validates that a string value contains a valid url
+This will accept any url the golang request uri accepts but must contain
+a schema for example http:// or rtmp://
+
+	Usage: url
+
+URI String
+
+This validates that a string value contains a valid uri
+This will accept any uri the golang request uri accepts
+
+	Usage: uri
+
+Base64 String
+
+This validates that a string value contains a valid base64 value.
+Although an empty string is valid base64 this will report an empty string
+as an error, if you wish to accept an empty string as valid you can use
+this with the omitempty tag.
+
+	Usage: base64
+
+Contains
+
+This validates that a string value contains the substring value.
+
+	Usage: contains=@
+
+Contains Any
+
+This validates that a string value contains any Unicode code points
+in the substring value.
+
+	Usage: containsany=!@#?
+
+Contains Rune
+
+This validates that a string value contains the supplied rune value.
+
+	Usage: containsrune=@
+
+Excludes
+
+This validates that a string value does not contain the substring value.
+
+	Usage: excludes=@
+
+Excludes All
+
+This validates that a string value does not contain any Unicode code
+points in the substring value.
+
+	Usage: excludesall=!@#?
+
+Excludes Rune
+
+This validates that a string value does not contain the supplied rune value.
+
+	Usage: excludesrune=@
+
+International Standard Book Number
+
+This validates that a string value contains a valid isbn10 or isbn13 value.
+
+	Usage: isbn
+
+International Standard Book Number 10
+
+This validates that a string value contains a valid isbn10 value.
+
+	Usage: isbn10
+
+International Standard Book Number 13
+
+This validates that a string value contains a valid isbn13 value.
+
+	Usage: isbn13
+
+
+Universally Unique Identifier UUID
+
+This validates that a string value contains a valid UUID.
+
+	Usage: uuid
+
+Universally Unique Identifier UUID v3
+
+This validates that a string value contains a valid version 3 UUID.
+
+	Usage: uuid3
+
+Universally Unique Identifier UUID v4
+
+This validates that a string value contains a valid version 4 UUID.
+
+	Usage: uuid4
+
+Universally Unique Identifier UUID v5
+
+This validates that a string value contains a valid version 5 UUID.
+
+	Usage: uuid5
+
+ASCII
+
+This validates that a string value contains only ASCII characters.
+NOTE: if the string is blank, this validates as true.
+
+	Usage: ascii
+
+Printable ASCII
+
+This validates that a string value contains only printable ASCII characters.
+NOTE: if the string is blank, this validates as true.
+
+	Usage: printascii
+
+Multi-Byte Characters
+
+This validates that a string value contains one or more multibyte characters.
+NOTE: if the string is blank, this validates as true.
+
+	Usage: multibyte
+
+Data URL
+
+This validates that a string value contains a valid DataURI.
+NOTE: this will also validate that the data portion is valid base64
+
+	Usage: datauri
+
+Latitude
+
+This validates that a string value contains a valid latitude.
+
+	Usage: latitude
+
+Longitude
+
+This validates that a string value contains a valid longitude.
+
+	Usage: longitude
+
+Social Security Number SSN
+
+This validates that a string value contains a valid U.S. Social Security Number.
+
+	Usage: ssn
+
+Internet Protocol Address IP
+
+This validates that a string value contains a valid IP Adress.
+
+	Usage: ip
+
+Internet Protocol Address IPv4
+
+This validates that a string value contains a valid v4 IP Adress.
+
+	Usage: ipv4
+
+Internet Protocol Address IPv6
+
+This validates that a string value contains a valid v6 IP Adress.
+
+	Usage: ipv6
+
+Classless Inter-Domain Routing CIDR
+
+This validates that a string value contains a valid CIDR Adress.
+
+	Usage: cidr
+
+Classless Inter-Domain Routing CIDRv4
+
+This validates that a string value contains a valid v4 CIDR Adress.
+
+	Usage: cidrv4
+
+Classless Inter-Domain Routing CIDRv6
+
+This validates that a string value contains a valid v6 CIDR Adress.
+
+	Usage: cidrv6
+
+Transmission Control Protocol Address TCP
+
+This validates that a string value contains a valid resolvable TCP Adress.
+
+	Usage: tcp_addr
+
+Transmission Control Protocol Address TCPv4
+
+This validates that a string value contains a valid resolvable v4 TCP Adress.
+
+	Usage: tcp4_addr
+
+Transmission Control Protocol Address TCPv6
+
+This validates that a string value contains a valid resolvable v6 TCP Adress.
+
+	Usage: tcp6_addr
+
+User Datagram Protocol Address UDP
+
+This validates that a string value contains a valid resolvable UDP Adress.
+
+	Usage: udp_addr
+
+User Datagram Protocol Address UDPv4
+
+This validates that a string value contains a valid resolvable v4 UDP Adress.
+
+	Usage: udp4_addr
+
+User Datagram Protocol Address UDPv6
+
+This validates that a string value contains a valid resolvable v6 UDP Adress.
+
+	Usage: udp6_addr
+
+Internet Protocol Address IP
+
+This validates that a string value contains a valid resolvable IP Adress.
+
+	Usage: ip_addr
+
+Internet Protocol Address IPv4
+
+This validates that a string value contains a valid resolvable v4 IP Adress.
+
+	Usage: ip4_addr
+
+Internet Protocol Address IPv6
+
+This validates that a string value contains a valid resolvable v6 IP Adress.
+
+	Usage: ip6_addr
+
+Unix domain socket end point Address
+
+This validates that a string value contains a valid Unix Adress.
+
+	Usage: unix_addr
+
+Media Access Control Address MAC
+
+This validates that a string value contains a valid MAC Adress.
+
+	Usage: mac
+
+Note: See Go's ParseMAC for accepted formats and types:
+
+	http://golang.org/src/net/mac.go?s=866:918#L29
+
+Hostname
+
+This validates that a string value is a valid Hostname
+
+	Usage: hostname
+
+Full Qualified Domain Name (FQDN)
+
+This validates that a string value contains a valid FQDN.
+
+	Usage: fqdn
+
+Alias Validators and Tags
+
+NOTE: When returning an error, the tag returned in "FieldError" will be
+the alias tag unless the dive tag is part of the alias. Everything after the
+dive tag is not reported as the alias tag. Also, the "ActualTag" in the before
+case will be the actual tag within the alias that failed.
+
+Here is a list of the current built in alias tags:
+
+	"iscolor"
+		alias is "hexcolor|rgb|rgba|hsl|hsla" (Usage: iscolor)
+
+Validator notes:
+
+	regex
+		a regex validator won't be added because commas and = signs can be part
+		of a regex which conflict with the validation definitions. Although
+		workarounds can be made, they take away from using pure regex's.
+		Furthermore it's quick and dirty but the regex's become harder to
+		maintain and are not reusable, so it's as much a programming philosiphy
+		as anything.
+
+		In place of this new validator functions should be created; a regex can
+		be used within the validator function and even be precompiled for better
+		efficiency within regexes.go.
+
+		And the best reason, you can submit a pull request and we can keep on
+		adding to the validation library of this package!
+
+Panics
+
+This package panics when bad input is provided, this is by design, bad code like
+that should not make it to production.
+
+	type Test struct {
+		TestField string `validate:"nonexistantfunction=1"`
+	}
+
+	t := &Test{
+		TestField: "Test"
+	}
+
+	validate.Struct(t) // this will panic
+*/
+package validator
diff --git a/vendor/gopkg.in/go-playground/validator.v9/errors.go b/vendor/gopkg.in/go-playground/validator.v9/errors.go
new file mode 100644
index 0000000..85f65ef
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/errors.go
@@ -0,0 +1,272 @@
+package validator
+
+import (
+	"bytes"
+	"fmt"
+	"reflect"
+	"strings"
+
+	ut "github.com/go-playground/universal-translator"
+)
+
+const (
+	fieldErrMsg = "Key: '%s' Error:Field validation for '%s' failed on the '%s' tag"
+)
+
+// ValidationErrorsTranslations is the translation return type
+type ValidationErrorsTranslations map[string]string
+
+// InvalidValidationError describes an invalid argument passed to
+// `Struct`, `StructExcept`, StructPartial` or `Field`
+type InvalidValidationError struct {
+	Type reflect.Type
+}
+
+// Error returns InvalidValidationError message
+func (e *InvalidValidationError) Error() string {
+
+	if e.Type == nil {
+		return "validator: (nil)"
+	}
+
+	return "validator: (nil " + e.Type.String() + ")"
+}
+
+// ValidationErrors is an array of FieldError's
+// for use in custom error messages post validation.
+type ValidationErrors []FieldError
+
+// Error is intended for use in development + debugging and not intended to be a production error message.
+// It allows ValidationErrors to subscribe to the Error interface.
+// All information to create an error message specific to your application is contained within
+// the FieldError found within the ValidationErrors array
+func (ve ValidationErrors) Error() string {
+
+	buff := bytes.NewBufferString("")
+
+	var fe *fieldError
+
+	for i := 0; i < len(ve); i++ {
+
+		fe = ve[i].(*fieldError)
+		buff.WriteString(fe.Error())
+		buff.WriteString("\n")
+	}
+
+	return strings.TrimSpace(buff.String())
+}
+
+// Translate translates all of the ValidationErrors
+func (ve ValidationErrors) Translate(ut ut.Translator) ValidationErrorsTranslations {
+
+	trans := make(ValidationErrorsTranslations)
+
+	var fe *fieldError
+
+	for i := 0; i < len(ve); i++ {
+		fe = ve[i].(*fieldError)
+
+		// // in case an Anonymous struct was used, ensure that the key
+		// // would be 'Username' instead of ".Username"
+		// if len(fe.ns) > 0 && fe.ns[:1] == "." {
+		// 	trans[fe.ns[1:]] = fe.Translate(ut)
+		// 	continue
+		// }
+
+		trans[fe.ns] = fe.Translate(ut)
+	}
+
+	return trans
+}
+
+// FieldError contains all functions to get error details
+type FieldError interface {
+
+	// returns the validation tag that failed. if the
+	// validation was an alias, this will return the
+	// alias name and not the underlying tag that failed.
+	//
+	// eg. alias "iscolor": "hexcolor|rgb|rgba|hsl|hsla"
+	// will return "iscolor"
+	Tag() string
+
+	// returns the validation tag that failed, even if an
+	// alias the actual tag within the alias will be returned.
+	// If an 'or' validation fails the entire or will be returned.
+	//
+	// eg. alias "iscolor": "hexcolor|rgb|rgba|hsl|hsla"
+	// will return "hexcolor|rgb|rgba|hsl|hsla"
+	ActualTag() string
+
+	// returns the namespace for the field error, with the tag
+	// name taking precedence over the fields actual name.
+	//
+	// eg. JSON name "User.fname"
+	//
+	// See StructNamespace() for a version that returns actual names.
+	//
+	// NOTE: this field can be blank when validating a single primitive field
+	// using validate.Field(...) as there is no way to extract it's name
+	Namespace() string
+
+	// returns the namespace for the field error, with the fields
+	// actual name.
+	//
+	// eq. "User.FirstName" see Namespace for comparison
+	//
+	// NOTE: this field can be blank when validating a single primitive field
+	// using validate.Field(...) as there is no way to extract it's name
+	StructNamespace() string
+
+	// returns the fields name with the tag name taking precedence over the
+	// fields actual name.
+	//
+	// eq. JSON name "fname"
+	// see ActualField for comparison
+	Field() string
+
+	// returns the fields actual name from the struct, when able to determine.
+	//
+	// eq.  "FirstName"
+	// see Field for comparison
+	StructField() string
+
+	// returns the actual fields value in case needed for creating the error
+	// message
+	Value() interface{}
+
+	// returns the param value, in string form for comparison; this will also
+	// help with generating an error message
+	Param() string
+
+	// Kind returns the Field's reflect Kind
+	//
+	// eg. time.Time's kind is a struct
+	Kind() reflect.Kind
+
+	// Type returns the Field's reflect Type
+	//
+	// // eg. time.Time's type is time.Time
+	Type() reflect.Type
+
+	// returns the FieldError's translated error
+	// from the provided 'ut.Translator' and registered 'TranslationFunc'
+	//
+	// NOTE: is not registered translation can be found it returns the same
+	// as calling fe.Error()
+	Translate(ut ut.Translator) string
+}
+
+// compile time interface checks
+var _ FieldError = new(fieldError)
+var _ error = new(fieldError)
+
+// fieldError contains a single field's validation error along
+// with other properties that may be needed for error message creation
+// it complies with the FieldError interface
+type fieldError struct {
+	v              *Validate
+	tag            string
+	actualTag      string
+	ns             string
+	structNs       string
+	fieldLen       uint8
+	structfieldLen uint8
+	value          interface{}
+	param          string
+	kind           reflect.Kind
+	typ            reflect.Type
+}
+
+// Tag returns the validation tag that failed.
+func (fe *fieldError) Tag() string {
+	return fe.tag
+}
+
+// ActualTag returns the validation tag that failed, even if an
+// alias the actual tag within the alias will be returned.
+func (fe *fieldError) ActualTag() string {
+	return fe.actualTag
+}
+
+// Namespace returns the namespace for the field error, with the tag
+// name taking precedence over the fields actual name.
+func (fe *fieldError) Namespace() string {
+	return fe.ns
+}
+
+// StructNamespace returns the namespace for the field error, with the fields
+// actual name.
+func (fe *fieldError) StructNamespace() string {
+	return fe.structNs
+}
+
+// Field returns the fields name with the tag name taking precedence over the
+// fields actual name.
+func (fe *fieldError) Field() string {
+
+	return fe.ns[len(fe.ns)-int(fe.fieldLen):]
+	// // return fe.field
+	// fld := fe.ns[len(fe.ns)-int(fe.fieldLen):]
+
+	// log.Println("FLD:", fld)
+
+	// if len(fld) > 0 && fld[:1] == "." {
+	// 	return fld[1:]
+	// }
+
+	// return fld
+}
+
+// returns the fields actual name from the struct, when able to determine.
+func (fe *fieldError) StructField() string {
+	// return fe.structField
+	return fe.structNs[len(fe.structNs)-int(fe.structfieldLen):]
+}
+
+// Value returns the actual fields value in case needed for creating the error
+// message
+func (fe *fieldError) Value() interface{} {
+	return fe.value
+}
+
+// Param returns the param value, in string form for comparison; this will
+// also help with generating an error message
+func (fe *fieldError) Param() string {
+	return fe.param
+}
+
+// Kind returns the Field's reflect Kind
+func (fe *fieldError) Kind() reflect.Kind {
+	return fe.kind
+}
+
+// Type returns the Field's reflect Type
+func (fe *fieldError) Type() reflect.Type {
+	return fe.typ
+}
+
+// Error returns the fieldError's error message
+func (fe *fieldError) Error() string {
+	return fmt.Sprintf(fieldErrMsg, fe.ns, fe.Field(), fe.tag)
+}
+
+// Translate returns the FieldError's translated error
+// from the provided 'ut.Translator' and registered 'TranslationFunc'
+//
+// NOTE: is not registered translation can be found it returns the same
+// as calling fe.Error()
+func (fe *fieldError) Translate(ut ut.Translator) string {
+
+	m, ok := fe.v.transTagFunc[ut]
+	if !ok {
+		return fe.Error()
+	}
+
+	fn, ok := m[fe.tag]
+	if !ok {
+		return fe.Error()
+	}
+
+	return fn(ut, fe)
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/examples_test.go b/vendor/gopkg.in/go-playground/validator.v9/examples_test.go
new file mode 100644
index 0000000..3f4df7e
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/examples_test.go
@@ -0,0 +1,83 @@
+package validator_test
+
+// import (
+// 	"fmt"
+
+// 	"gopkg.in/go-playground/validator.v8"
+// )
+
+// func ExampleValidate_new() {
+// 	config := &validator.Config{TagName: "validate"}
+
+// 	validator.New(config)
+// }
+
+// func ExampleValidate_field() {
+// 	// This should be stored somewhere globally
+// 	var validate *validator.Validate
+
+// 	config := &validator.Config{TagName: "validate"}
+
+// 	validate = validator.New(config)
+
+// 	i := 0
+// 	errs := validate.Field(i, "gt=1,lte=10")
+// 	err := errs.(validator.ValidationErrors)[""]
+// 	fmt.Println(err.Field)
+// 	fmt.Println(err.Tag)
+// 	fmt.Println(err.Kind) // NOTE: Kind and Type can be different i.e. time Kind=struct and Type=time.Time
+// 	fmt.Println(err.Type)
+// 	fmt.Println(err.Param)
+// 	fmt.Println(err.Value)
+// 	//Output:
+// 	//
+// 	//gt
+// 	//int
+// 	//int
+// 	//1
+// 	//0
+// }
+
+// func ExampleValidate_struct() {
+// 	// This should be stored somewhere globally
+// 	var validate *validator.Validate
+
+// 	config := &validator.Config{TagName: "validate"}
+
+// 	validate = validator.New(config)
+
+// 	type ContactInformation struct {
+// 		Phone  string `validate:"required"`
+// 		Street string `validate:"required"`
+// 		City   string `validate:"required"`
+// 	}
+
+// 	type User struct {
+// 		Name               string `validate:"required,excludesall=!@#$%^&*()_+-=:;?/0x2C"` // 0x2C = comma (,)
+// 		Age                int8   `validate:"required,gt=0,lt=150"`
+// 		Email              string `validate:"email"`
+// 		ContactInformation []*ContactInformation
+// 	}
+
+// 	contactInfo := &ContactInformation{
+// 		Street: "26 Here Blvd.",
+// 		City:   "Paradeso",
+// 	}
+
+// 	user := &User{
+// 		Name:               "Joey Bloggs",
+// 		Age:                31,
+// 		Email:              "joeybloggs@gmail.com",
+// 		ContactInformation: []*ContactInformation{contactInfo},
+// 	}
+
+// 	errs := validate.Struct(user)
+// 	for _, v := range errs.(validator.ValidationErrors) {
+// 		fmt.Println(v.Field) // Phone
+// 		fmt.Println(v.Tag)   // required
+// 		//... and so forth
+// 		//Output:
+// 		//Phone
+// 		//required
+// 	}
+// }
diff --git a/vendor/gopkg.in/go-playground/validator.v9/field_level.go b/vendor/gopkg.in/go-playground/validator.v9/field_level.go
new file mode 100644
index 0000000..6d73192
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/field_level.go
@@ -0,0 +1,69 @@
+package validator
+
+import "reflect"
+
+// FieldLevel contains all the information and helper functions
+// to validate a field
+type FieldLevel interface {
+
+	// returns the top level struct, if any
+	Top() reflect.Value
+
+	// returns the current fields parent struct, if any or
+	// the comparison value if called 'VarWithValue'
+	Parent() reflect.Value
+
+	// returns current field for validation
+	Field() reflect.Value
+
+	// returns the field's name with the tag
+	// name takeing precedence over the fields actual name.
+	FieldName() string
+
+	// returns the struct field's name
+	StructFieldName() string
+
+	// returns param for validation against current field
+	Param() string
+
+	// ExtractType gets the actual underlying type of field value.
+	// It will dive into pointers, customTypes and return you the
+	// underlying value and it's kind.
+	ExtractType(field reflect.Value) (value reflect.Value, kind reflect.Kind, nullable bool)
+
+	// traverses the parent struct to retrieve a specific field denoted by the provided namespace
+	// in the param and returns the field, field kind and whether is was successful in retrieving
+	// the field at all.
+	//
+	// NOTE: when not successful ok will be false, this can happen when a nested struct is nil and so the field
+	// could not be retrieved because it didn't exist.
+	GetStructFieldOK() (reflect.Value, reflect.Kind, bool)
+}
+
+var _ FieldLevel = new(validate)
+
+// Field returns current field for validation
+func (v *validate) Field() reflect.Value {
+	return v.flField
+}
+
+// FieldName returns the field's name with the tag
+// name takeing precedence over the fields actual name.
+func (v *validate) FieldName() string {
+	return v.cf.altName
+}
+
+// StructFieldName returns the struct field's name
+func (v *validate) StructFieldName() string {
+	return v.cf.name
+}
+
+// Param returns param for validation against current field
+func (v *validate) Param() string {
+	return v.ct.param
+}
+
+// GetStructFieldOK returns Param returns param for validation against current field
+func (v *validate) GetStructFieldOK() (reflect.Value, reflect.Kind, bool) {
+	return v.getStructFieldOKInternal(v.slflParent, v.ct.param)
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/logo.png b/vendor/gopkg.in/go-playground/validator.v9/logo.png
new file mode 100644
index 0000000..355000f
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/logo.png
diff --git a/vendor/gopkg.in/go-playground/validator.v9/regexes.go b/vendor/gopkg.in/go-playground/validator.v9/regexes.go
new file mode 100644
index 0000000..ec78ceb
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/regexes.go
@@ -0,0 +1,65 @@
+package validator
+
+import "regexp"
+
+const (
+	alphaRegexString               = "^[a-zA-Z]+$"
+	alphaNumericRegexString        = "^[a-zA-Z0-9]+$"
+	alphaUnicodeRegexString        = "^[\\p{L}]+$"
+	alphaUnicodeNumericRegexString = "^[\\p{L}\\p{N}]+$"
+	numericRegexString             = "^[-+]?[0-9]+(?:\\.[0-9]+)?$"
+	numberRegexString              = "^[0-9]+$"
+	hexadecimalRegexString         = "^[0-9a-fA-F]+$"
+	hexcolorRegexString            = "^#(?:[0-9a-fA-F]{3}|[0-9a-fA-F]{6})$"
+	rgbRegexString                 = "^rgb\\(\\s*(?:(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])|(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])%\\s*,\\s*(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])%\\s*,\\s*(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])%)\\s*\\)$"
+	rgbaRegexString                = "^rgba\\(\\s*(?:(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])|(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])%\\s*,\\s*(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])%\\s*,\\s*(?:0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])%)\\s*,\\s*(?:(?:0.[1-9]*)|[01])\\s*\\)$"
+	hslRegexString                 = "^hsl\\(\\s*(?:0|[1-9]\\d?|[12]\\d\\d|3[0-5]\\d|360)\\s*,\\s*(?:(?:0|[1-9]\\d?|100)%)\\s*,\\s*(?:(?:0|[1-9]\\d?|100)%)\\s*\\)$"
+	hslaRegexString                = "^hsla\\(\\s*(?:0|[1-9]\\d?|[12]\\d\\d|3[0-5]\\d|360)\\s*,\\s*(?:(?:0|[1-9]\\d?|100)%)\\s*,\\s*(?:(?:0|[1-9]\\d?|100)%)\\s*,\\s*(?:(?:0.[1-9]*)|[01])\\s*\\)$"
+	emailRegexString               = "^(?:(?:(?:(?:[a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+(?:\\.([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+)*)|(?:(?:\\x22)(?:(?:(?:(?:\\x20|\\x09)*(?:\\x0d\\x0a))?(?:\\x20|\\x09)+)?(?:(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(?:\\(?:[\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}]))))*(?:(?:(?:\\x20|\\x09)*(?:\\x0d\\x0a))?(\\x20|\\x09)+)?(?:\\x22)))@(?:(?:(?:[a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(?:(?:[a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])(?:[a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*(?:[a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.)+(?:(?:[a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(?:(?:[a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])(?:[a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*(?:[a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.?$"
+	base64RegexString              = "^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$"
+	iSBN10RegexString              = "^(?:[0-9]{9}X|[0-9]{10})$"
+	iSBN13RegexString              = "^(?:(?:97(?:8|9))[0-9]{10})$"
+	uUID3RegexString               = "^[0-9a-f]{8}-[0-9a-f]{4}-3[0-9a-f]{3}-[0-9a-f]{4}-[0-9a-f]{12}$"
+	uUID4RegexString               = "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
+	uUID5RegexString               = "^[0-9a-f]{8}-[0-9a-f]{4}-5[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
+	uUIDRegexString                = "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
+	aSCIIRegexString               = "^[\x00-\x7F]*$"
+	printableASCIIRegexString      = "^[\x20-\x7E]*$"
+	multibyteRegexString           = "[^\x00-\x7F]"
+	dataURIRegexString             = "^data:.+\\/(.+);base64$"
+	latitudeRegexString            = "^[-+]?([1-8]?\\d(\\.\\d+)?|90(\\.0+)?)$"
+	longitudeRegexString           = "^[-+]?(180(\\.0+)?|((1[0-7]\\d)|([1-9]?\\d))(\\.\\d+)?)$"
+	sSNRegexString                 = `^\d{3}[- ]?\d{2}[- ]?\d{4}$`
+	hostnameRegexString            = `^[a-zA-Z][a-zA-Z0-9\-\.]+[a-z-Az0-9]$`
+)
+
+var (
+	alphaRegex               = regexp.MustCompile(alphaRegexString)
+	alphaNumericRegex        = regexp.MustCompile(alphaNumericRegexString)
+	alphaUnicodeRegex        = regexp.MustCompile(alphaUnicodeRegexString)
+	alphaUnicodeNumericRegex = regexp.MustCompile(alphaUnicodeNumericRegexString)
+	numericRegex             = regexp.MustCompile(numericRegexString)
+	numberRegex              = regexp.MustCompile(numberRegexString)
+	hexadecimalRegex         = regexp.MustCompile(hexadecimalRegexString)
+	hexcolorRegex            = regexp.MustCompile(hexcolorRegexString)
+	rgbRegex                 = regexp.MustCompile(rgbRegexString)
+	rgbaRegex                = regexp.MustCompile(rgbaRegexString)
+	hslRegex                 = regexp.MustCompile(hslRegexString)
+	hslaRegex                = regexp.MustCompile(hslaRegexString)
+	emailRegex               = regexp.MustCompile(emailRegexString)
+	base64Regex              = regexp.MustCompile(base64RegexString)
+	iSBN10Regex              = regexp.MustCompile(iSBN10RegexString)
+	iSBN13Regex              = regexp.MustCompile(iSBN13RegexString)
+	uUID3Regex               = regexp.MustCompile(uUID3RegexString)
+	uUID4Regex               = regexp.MustCompile(uUID4RegexString)
+	uUID5Regex               = regexp.MustCompile(uUID5RegexString)
+	uUIDRegex                = regexp.MustCompile(uUIDRegexString)
+	aSCIIRegex               = regexp.MustCompile(aSCIIRegexString)
+	printableASCIIRegex      = regexp.MustCompile(printableASCIIRegexString)
+	multibyteRegex           = regexp.MustCompile(multibyteRegexString)
+	dataURIRegex             = regexp.MustCompile(dataURIRegexString)
+	latitudeRegex            = regexp.MustCompile(latitudeRegexString)
+	longitudeRegex           = regexp.MustCompile(longitudeRegexString)
+	sSNRegex                 = regexp.MustCompile(sSNRegexString)
+	hostnameRegex            = regexp.MustCompile(hostnameRegexString)
+)
diff --git a/vendor/gopkg.in/go-playground/validator.v9/struct_level.go b/vendor/gopkg.in/go-playground/validator.v9/struct_level.go
new file mode 100644
index 0000000..16c620d
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/struct_level.go
@@ -0,0 +1,175 @@
+package validator
+
+import (
+	"context"
+	"reflect"
+)
+
+// StructLevelFunc accepts all values needed for struct level validation
+type StructLevelFunc func(sl StructLevel)
+
+// StructLevelFuncCtx accepts all values needed for struct level validation
+// but also allows passing of contextual validation information vi context.Context.
+type StructLevelFuncCtx func(ctx context.Context, sl StructLevel)
+
+// wrapStructLevelFunc wraps noramal StructLevelFunc makes it compatible with StructLevelFuncCtx
+func wrapStructLevelFunc(fn StructLevelFunc) StructLevelFuncCtx {
+	return func(ctx context.Context, sl StructLevel) {
+		fn(sl)
+	}
+}
+
+// StructLevel contains all the information and helper functions
+// to validate a struct
+type StructLevel interface {
+
+	// returns the main validation object, in case one want to call validations internally.
+	// this is so you don;t have to use anonymous functoins to get access to the validate
+	// instance.
+	Validator() *Validate
+
+	// returns the top level struct, if any
+	Top() reflect.Value
+
+	// returns the current fields parent struct, if any
+	Parent() reflect.Value
+
+	// returns the current struct.
+	Current() reflect.Value
+
+	// ExtractType gets the actual underlying type of field value.
+	// It will dive into pointers, customTypes and return you the
+	// underlying value and it's kind.
+	ExtractType(field reflect.Value) (value reflect.Value, kind reflect.Kind, nullable bool)
+
+	// reports an error just by passing the field and tag information
+	//
+	// NOTES:
+	//
+	// fieldName and altName get appended to the existing namespace that
+	// validator is on. eg. pass 'FirstName' or 'Names[0]' depending
+	// on the nesting
+	//
+	// tag can be an existing validation tag or just something you make up
+	// and process on the flip side it's up to you.
+	ReportError(field interface{}, fieldName, structFieldName string, tag, param string)
+
+	// reports an error just by passing ValidationErrors
+	//
+	// NOTES:
+	//
+	// relativeNamespace and relativeActualNamespace get appended to the
+	// existing namespace that validator is on.
+	// eg. pass 'User.FirstName' or 'Users[0].FirstName' depending
+	// on the nesting. most of the time they will be blank, unless you validate
+	// at a level lower the the current field depth
+	ReportValidationErrors(relativeNamespace, relativeActualNamespace string, errs ValidationErrors)
+}
+
+var _ StructLevel = new(validate)
+
+// Top returns the top level struct
+//
+// NOTE: this can be the same as the current struct being validated
+// if not is a nested struct.
+//
+// this is only called when within Struct and Field Level validation and
+// should not be relied upon for an acurate value otherwise.
+func (v *validate) Top() reflect.Value {
+	return v.top
+}
+
+// Parent returns the current structs parent
+//
+// NOTE: this can be the same as the current struct being validated
+// if not is a nested struct.
+//
+// this is only called when within Struct and Field Level validation and
+// should not be relied upon for an acurate value otherwise.
+func (v *validate) Parent() reflect.Value {
+	return v.slflParent
+}
+
+// Current returns the current struct.
+func (v *validate) Current() reflect.Value {
+	return v.slCurrent
+}
+
+// Validator returns the main validation object, in case one want to call validations internally.
+func (v *validate) Validator() *Validate {
+	return v.v
+}
+
+// ExtractType gets the actual underlying type of field value.
+func (v *validate) ExtractType(field reflect.Value) (reflect.Value, reflect.Kind, bool) {
+	return v.extractTypeInternal(field, false)
+}
+
+// ReportError reports an error just by passing the field and tag information
+func (v *validate) ReportError(field interface{}, fieldName, structFieldName, tag, param string) {
+
+	fv, kind, _ := v.extractTypeInternal(reflect.ValueOf(field), false)
+
+	if len(structFieldName) == 0 {
+		structFieldName = fieldName
+	}
+
+	v.str1 = string(append(v.ns, fieldName...))
+
+	if v.v.hasTagNameFunc || fieldName != structFieldName {
+		v.str2 = string(append(v.actualNs, structFieldName...))
+	} else {
+		v.str2 = v.str1
+	}
+
+	if kind == reflect.Invalid {
+
+		v.errs = append(v.errs,
+			&fieldError{
+				v:              v.v,
+				tag:            tag,
+				actualTag:      tag,
+				ns:             v.str1,
+				structNs:       v.str2,
+				fieldLen:       uint8(len(fieldName)),
+				structfieldLen: uint8(len(structFieldName)),
+				param:          param,
+				kind:           kind,
+			},
+		)
+		return
+	}
+
+	v.errs = append(v.errs,
+		&fieldError{
+			v:              v.v,
+			tag:            tag,
+			actualTag:      tag,
+			ns:             v.str1,
+			structNs:       v.str2,
+			fieldLen:       uint8(len(fieldName)),
+			structfieldLen: uint8(len(structFieldName)),
+			value:          fv.Interface(),
+			param:          param,
+			kind:           kind,
+			typ:            fv.Type(),
+		},
+	)
+}
+
+// ReportValidationErrors reports ValidationErrors obtained from running validations within the Struct Level validation.
+//
+// NOTE: this function prepends the current namespace to the relative ones.
+func (v *validate) ReportValidationErrors(relativeNamespace, relativeStructNamespace string, errs ValidationErrors) {
+
+	var err *fieldError
+
+	for i := 0; i < len(errs); i++ {
+
+		err = errs[i].(*fieldError)
+		err.ns = string(append(append(v.ns, relativeNamespace...), err.ns...))
+		err.structNs = string(append(append(v.actualNs, relativeStructNamespace...), err.structNs...))
+
+		v.errs = append(v.errs, err)
+	}
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/translations.go b/vendor/gopkg.in/go-playground/validator.v9/translations.go
new file mode 100644
index 0000000..4465abb
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/translations.go
@@ -0,0 +1,11 @@
+package validator
+
+import ut "github.com/go-playground/universal-translator"
+
+// TranslationFunc is the function type used to register or override
+// custom translations
+type TranslationFunc func(ut ut.Translator, fe FieldError) string
+
+// RegisterTranslationsFunc allows for registering of translations
+// for a 'ut.Translator' for use withing the 'TranslationFunc'
+type RegisterTranslationsFunc func(ut ut.Translator) error
diff --git a/vendor/gopkg.in/go-playground/validator.v9/util.go b/vendor/gopkg.in/go-playground/validator.v9/util.go
new file mode 100644
index 0000000..a01d4b1
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/util.go
@@ -0,0 +1,257 @@
+package validator
+
+import (
+	"reflect"
+	"strconv"
+	"strings"
+)
+
+// extractTypeInternal gets the actual underlying type of field value.
+// It will dive into pointers, customTypes and return you the
+// underlying value and it's kind.
+func (v *validate) extractTypeInternal(current reflect.Value, nullable bool) (reflect.Value, reflect.Kind, bool) {
+
+BEGIN:
+	switch current.Kind() {
+	case reflect.Ptr:
+
+		nullable = true
+
+		if current.IsNil() {
+			return current, reflect.Ptr, nullable
+		}
+
+		current = current.Elem()
+		goto BEGIN
+
+	case reflect.Interface:
+
+		nullable = true
+
+		if current.IsNil() {
+			return current, reflect.Interface, nullable
+		}
+
+		current = current.Elem()
+		goto BEGIN
+
+	case reflect.Invalid:
+		return current, reflect.Invalid, nullable
+
+	default:
+
+		if v.v.hasCustomFuncs {
+
+			if fn, ok := v.v.customFuncs[current.Type()]; ok {
+				current = reflect.ValueOf(fn(current))
+				goto BEGIN
+			}
+		}
+
+		return current, current.Kind(), nullable
+	}
+}
+
+// getStructFieldOKInternal traverses a struct to retrieve a specific field denoted by the provided namespace and
+// returns the field, field kind and whether is was successful in retrieving the field at all.
+//
+// NOTE: when not successful ok will be false, this can happen when a nested struct is nil and so the field
+// could not be retrieved because it didn't exist.
+func (v *validate) getStructFieldOKInternal(val reflect.Value, namespace string) (current reflect.Value, kind reflect.Kind, found bool) {
+
+BEGIN:
+	current, kind, _ = v.ExtractType(val)
+
+	if kind == reflect.Invalid {
+		return
+	}
+
+	if namespace == "" {
+		found = true
+		return
+	}
+
+	switch kind {
+
+	case reflect.Ptr, reflect.Interface:
+		return
+
+	case reflect.Struct:
+
+		typ := current.Type()
+		fld := namespace
+		ns := namespace
+
+		if typ != timeType {
+
+			idx := strings.Index(namespace, namespaceSeparator)
+
+			if idx != -1 {
+				fld = namespace[:idx]
+				ns = namespace[idx+1:]
+			} else {
+				ns = ""
+			}
+
+			bracketIdx := strings.Index(fld, leftBracket)
+			if bracketIdx != -1 {
+				fld = fld[:bracketIdx]
+
+				ns = namespace[bracketIdx:]
+			}
+
+			val = current.FieldByName(fld)
+			namespace = ns
+			goto BEGIN
+		}
+
+	case reflect.Array, reflect.Slice:
+		idx := strings.Index(namespace, leftBracket)
+		idx2 := strings.Index(namespace, rightBracket)
+
+		arrIdx, _ := strconv.Atoi(namespace[idx+1 : idx2])
+
+		if arrIdx >= current.Len() {
+			return current, kind, false
+		}
+
+		startIdx := idx2 + 1
+
+		if startIdx < len(namespace) {
+			if namespace[startIdx:startIdx+1] == namespaceSeparator {
+				startIdx++
+			}
+		}
+
+		val = current.Index(arrIdx)
+		namespace = namespace[startIdx:]
+		goto BEGIN
+
+	case reflect.Map:
+		idx := strings.Index(namespace, leftBracket) + 1
+		idx2 := strings.Index(namespace, rightBracket)
+
+		endIdx := idx2
+
+		if endIdx+1 < len(namespace) {
+			if namespace[endIdx+1:endIdx+2] == namespaceSeparator {
+				endIdx++
+			}
+		}
+
+		key := namespace[idx:idx2]
+
+		switch current.Type().Key().Kind() {
+		case reflect.Int:
+			i, _ := strconv.Atoi(key)
+			val = current.MapIndex(reflect.ValueOf(i))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Int8:
+			i, _ := strconv.ParseInt(key, 10, 8)
+			val = current.MapIndex(reflect.ValueOf(int8(i)))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Int16:
+			i, _ := strconv.ParseInt(key, 10, 16)
+			val = current.MapIndex(reflect.ValueOf(int16(i)))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Int32:
+			i, _ := strconv.ParseInt(key, 10, 32)
+			val = current.MapIndex(reflect.ValueOf(int32(i)))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Int64:
+			i, _ := strconv.ParseInt(key, 10, 64)
+			val = current.MapIndex(reflect.ValueOf(i))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Uint:
+			i, _ := strconv.ParseUint(key, 10, 0)
+			val = current.MapIndex(reflect.ValueOf(uint(i)))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Uint8:
+			i, _ := strconv.ParseUint(key, 10, 8)
+			val = current.MapIndex(reflect.ValueOf(uint8(i)))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Uint16:
+			i, _ := strconv.ParseUint(key, 10, 16)
+			val = current.MapIndex(reflect.ValueOf(uint16(i)))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Uint32:
+			i, _ := strconv.ParseUint(key, 10, 32)
+			val = current.MapIndex(reflect.ValueOf(uint32(i)))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Uint64:
+			i, _ := strconv.ParseUint(key, 10, 64)
+			val = current.MapIndex(reflect.ValueOf(i))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Float32:
+			f, _ := strconv.ParseFloat(key, 32)
+			val = current.MapIndex(reflect.ValueOf(float32(f)))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Float64:
+			f, _ := strconv.ParseFloat(key, 64)
+			val = current.MapIndex(reflect.ValueOf(f))
+			namespace = namespace[endIdx+1:]
+
+		case reflect.Bool:
+			b, _ := strconv.ParseBool(key)
+			val = current.MapIndex(reflect.ValueOf(b))
+			namespace = namespace[endIdx+1:]
+
+		// reflect.Type = string
+		default:
+			val = current.MapIndex(reflect.ValueOf(key))
+			namespace = namespace[endIdx+1:]
+		}
+
+		goto BEGIN
+	}
+
+	// if got here there was more namespace, cannot go any deeper
+	panic("Invalid field namespace")
+}
+
+// asInt returns the parameter as a int64
+// or panics if it can't convert
+func asInt(param string) int64 {
+
+	i, err := strconv.ParseInt(param, 0, 64)
+	panicIf(err)
+
+	return i
+}
+
+// asUint returns the parameter as a uint64
+// or panics if it can't convert
+func asUint(param string) uint64 {
+
+	i, err := strconv.ParseUint(param, 0, 64)
+	panicIf(err)
+
+	return i
+}
+
+// asFloat returns the parameter as a float64
+// or panics if it can't convert
+func asFloat(param string) float64 {
+
+	i, err := strconv.ParseFloat(param, 64)
+	panicIf(err)
+
+	return i
+}
+
+func panicIf(err error) {
+	if err != nil {
+		panic(err.Error())
+	}
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/validator.go b/vendor/gopkg.in/go-playground/validator.v9/validator.go
new file mode 100644
index 0000000..f180a9c
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/validator.go
@@ -0,0 +1,484 @@
+package validator
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"strconv"
+)
+
+// per validate contruct
+type validate struct {
+	v              *Validate
+	top            reflect.Value
+	ns             []byte
+	actualNs       []byte
+	errs           ValidationErrors
+	isPartial      bool
+	hasExcludes    bool
+	includeExclude map[string]struct{} // reset only if StructPartial or StructExcept are called, no need otherwise
+
+	ffn FilterFunc
+
+	// StructLevel & FieldLevel fields
+	slflParent   reflect.Value
+	slCurrent    reflect.Value
+	flField      reflect.Value
+	fldIsPointer bool
+	cf           *cField
+	ct           *cTag
+
+	// misc reusable values
+	misc []byte
+	str1 string
+	str2 string
+}
+
+// parent and current will be the same the first run of validateStruct
+func (v *validate) validateStruct(ctx context.Context, parent reflect.Value, current reflect.Value, typ reflect.Type, ns []byte, structNs []byte, ct *cTag) {
+
+	cs, ok := v.v.structCache.Get(typ)
+	if !ok {
+		cs = v.v.extractStructCache(current, typ.Name())
+	}
+
+	if len(ns) == 0 && len(cs.name) != 0 {
+
+		ns = append(ns, cs.name...)
+		ns = append(ns, '.')
+
+		structNs = append(structNs, cs.name...)
+		structNs = append(structNs, '.')
+	}
+
+	// ct is nil on top level struct, and structs as fields that have no tag info
+	// so if nil or if not nil and the structonly tag isn't present
+	if ct == nil || ct.typeof != typeStructOnly {
+
+		var f *cField
+
+		for i := 0; i < len(cs.fields); i++ {
+
+			f = cs.fields[i]
+
+			if v.isPartial {
+
+				if v.ffn != nil {
+					// used with StructFiltered
+					if v.ffn(append(structNs, f.name...)) {
+						continue
+					}
+
+				} else {
+					// used with StructPartial & StructExcept
+					_, ok = v.includeExclude[string(append(structNs, f.name...))]
+
+					if (ok && v.hasExcludes) || (!ok && !v.hasExcludes) {
+						continue
+					}
+				}
+			}
+
+			v.traverseField(ctx, parent, current.Field(f.idx), ns, structNs, f, f.cTags)
+		}
+	}
+
+	// check if any struct level validations, after all field validations already checked.
+	// first iteration will have no info about nostructlevel tag, and is checked prior to
+	// calling the next iteration of validateStruct called from traverseField.
+	if cs.fn != nil {
+
+		v.slflParent = parent
+		v.slCurrent = current
+		v.ns = ns
+		v.actualNs = structNs
+
+		cs.fn(ctx, v)
+	}
+}
+
+// traverseField validates any field, be it a struct or single field, ensures it's validity and passes it along to be validated via it's tag options
+func (v *validate) traverseField(ctx context.Context, parent reflect.Value, current reflect.Value, ns []byte, structNs []byte, cf *cField, ct *cTag) {
+
+	var typ reflect.Type
+	var kind reflect.Kind
+
+	current, kind, v.fldIsPointer = v.extractTypeInternal(current, false)
+
+	switch kind {
+	case reflect.Ptr, reflect.Interface, reflect.Invalid:
+
+		if ct == nil {
+			return
+		}
+
+		if ct.typeof == typeOmitEmpty || ct.typeof == typeIsDefault {
+			return
+		}
+
+		if ct.hasTag {
+
+			v.str1 = string(append(ns, cf.altName...))
+
+			if v.v.hasTagNameFunc {
+				v.str2 = string(append(structNs, cf.name...))
+			} else {
+				v.str2 = v.str1
+			}
+
+			if kind == reflect.Invalid {
+
+				v.errs = append(v.errs,
+					&fieldError{
+						v:              v.v,
+						tag:            ct.aliasTag,
+						actualTag:      ct.tag,
+						ns:             v.str1,
+						structNs:       v.str2,
+						fieldLen:       uint8(len(cf.altName)),
+						structfieldLen: uint8(len(cf.name)),
+						param:          ct.param,
+						kind:           kind,
+					},
+				)
+
+				return
+			}
+
+			v.errs = append(v.errs,
+				&fieldError{
+					v:              v.v,
+					tag:            ct.aliasTag,
+					actualTag:      ct.tag,
+					ns:             v.str1,
+					structNs:       v.str2,
+					fieldLen:       uint8(len(cf.altName)),
+					structfieldLen: uint8(len(cf.name)),
+					value:          current.Interface(),
+					param:          ct.param,
+					kind:           kind,
+					typ:            current.Type(),
+				},
+			)
+
+			return
+		}
+
+	case reflect.Struct:
+
+		typ = current.Type()
+
+		if typ != timeType {
+
+			if ct != nil {
+
+				if ct.typeof == typeStructOnly {
+					goto CONTINUE
+				} else if ct.typeof == typeIsDefault {
+					// set Field Level fields
+					v.slflParent = parent
+					v.flField = current
+					v.cf = cf
+					v.ct = ct
+
+					if !ct.fn(ctx, v) {
+						v.str1 = string(append(ns, cf.altName...))
+
+						if v.v.hasTagNameFunc {
+							v.str2 = string(append(structNs, cf.name...))
+						} else {
+							v.str2 = v.str1
+						}
+
+						v.errs = append(v.errs,
+							&fieldError{
+								v:              v.v,
+								tag:            ct.aliasTag,
+								actualTag:      ct.tag,
+								ns:             v.str1,
+								structNs:       v.str2,
+								fieldLen:       uint8(len(cf.altName)),
+								structfieldLen: uint8(len(cf.name)),
+								value:          current.Interface(),
+								param:          ct.param,
+								kind:           kind,
+								typ:            typ,
+							},
+						)
+						return
+					}
+				}
+
+				ct = ct.next
+			}
+
+			if ct != nil && ct.typeof == typeNoStructLevel {
+				return
+			}
+
+		CONTINUE:
+			// if len == 0 then validating using 'Var' or 'VarWithValue'
+			// Var - doesn't make much sense to do it that way, should call 'Struct', but no harm...
+			// VarWithField - this allows for validating against each field withing the struct against a specific value
+			//                pretty handly in certain situations
+			if len(cf.name) > 0 {
+				ns = append(append(ns, cf.altName...), '.')
+				structNs = append(append(structNs, cf.name...), '.')
+			}
+
+			v.validateStruct(ctx, current, current, typ, ns, structNs, ct)
+			return
+		}
+	}
+
+	if !ct.hasTag {
+		return
+	}
+
+	typ = current.Type()
+
+OUTER:
+	for {
+		if ct == nil {
+			return
+		}
+
+		switch ct.typeof {
+
+		case typeOmitEmpty:
+
+			// set Field Level fields
+			v.slflParent = parent
+			v.flField = current
+			v.cf = cf
+			v.ct = ct
+
+			if !v.fldIsPointer && !hasValue(v) {
+				return
+			}
+
+			ct = ct.next
+			continue
+
+		case typeEndKeys:
+			return
+
+		case typeDive:
+
+			ct = ct.next
+
+			// traverse slice or map here
+			// or panic ;)
+			switch kind {
+			case reflect.Slice, reflect.Array:
+
+				var i64 int64
+				reusableCF := &cField{}
+
+				for i := 0; i < current.Len(); i++ {
+
+					i64 = int64(i)
+
+					v.misc = append(v.misc[0:0], cf.name...)
+					v.misc = append(v.misc, '[')
+					v.misc = strconv.AppendInt(v.misc, i64, 10)
+					v.misc = append(v.misc, ']')
+
+					reusableCF.name = string(v.misc)
+
+					if cf.namesEqual {
+						reusableCF.altName = reusableCF.name
+					} else {
+
+						v.misc = append(v.misc[0:0], cf.altName...)
+						v.misc = append(v.misc, '[')
+						v.misc = strconv.AppendInt(v.misc, i64, 10)
+						v.misc = append(v.misc, ']')
+
+						reusableCF.altName = string(v.misc)
+					}
+					v.traverseField(ctx, parent, current.Index(i), ns, structNs, reusableCF, ct)
+				}
+
+			case reflect.Map:
+
+				var pv string
+				reusableCF := &cField{}
+
+				for _, key := range current.MapKeys() {
+
+					pv = fmt.Sprintf("%v", key.Interface())
+
+					v.misc = append(v.misc[0:0], cf.name...)
+					v.misc = append(v.misc, '[')
+					v.misc = append(v.misc, pv...)
+					v.misc = append(v.misc, ']')
+
+					reusableCF.name = string(v.misc)
+
+					if cf.namesEqual {
+						reusableCF.altName = reusableCF.name
+					} else {
+						v.misc = append(v.misc[0:0], cf.altName...)
+						v.misc = append(v.misc, '[')
+						v.misc = append(v.misc, pv...)
+						v.misc = append(v.misc, ']')
+
+						reusableCF.altName = string(v.misc)
+					}
+
+					if ct != nil && ct.typeof == typeKeys && ct.keys != nil {
+						v.traverseField(ctx, parent, key, ns, structNs, reusableCF, ct.keys)
+						// can be nil when just keys being validated
+						if ct.next != nil {
+							v.traverseField(ctx, parent, current.MapIndex(key), ns, structNs, reusableCF, ct.next)
+						}
+					} else {
+						v.traverseField(ctx, parent, current.MapIndex(key), ns, structNs, reusableCF, ct)
+					}
+				}
+
+			default:
+				// throw error, if not a slice or map then should not have gotten here
+				// bad dive tag
+				panic("dive error! can't dive on a non slice or map")
+			}
+
+			return
+
+		case typeOr:
+
+			v.misc = v.misc[0:0]
+
+			for {
+
+				// set Field Level fields
+				v.slflParent = parent
+				v.flField = current
+				v.cf = cf
+				v.ct = ct
+
+				if ct.fn(ctx, v) {
+
+					// drain rest of the 'or' values, then continue or leave
+					for {
+
+						ct = ct.next
+
+						if ct == nil {
+							return
+						}
+
+						if ct.typeof != typeOr {
+							continue OUTER
+						}
+					}
+				}
+
+				v.misc = append(v.misc, '|')
+				v.misc = append(v.misc, ct.tag...)
+
+				if len(ct.param) > 0 {
+					v.misc = append(v.misc, '=')
+					v.misc = append(v.misc, ct.param...)
+				}
+
+				if ct.next == nil || ct.next.typeof != typeOr { // ct.typeof != typeOr
+					// if we get here, no valid 'or' value and no more tags
+
+					v.str1 = string(append(ns, cf.altName...))
+
+					if v.v.hasTagNameFunc {
+						v.str2 = string(append(structNs, cf.name...))
+					} else {
+						v.str2 = v.str1
+					}
+
+					if ct.hasAlias {
+
+						v.errs = append(v.errs,
+							&fieldError{
+								v:              v.v,
+								tag:            ct.aliasTag,
+								actualTag:      ct.actualAliasTag,
+								ns:             v.str1,
+								structNs:       v.str2,
+								fieldLen:       uint8(len(cf.altName)),
+								structfieldLen: uint8(len(cf.name)),
+								value:          current.Interface(),
+								param:          ct.param,
+								kind:           kind,
+								typ:            typ,
+							},
+						)
+
+					} else {
+
+						tVal := string(v.misc)[1:]
+
+						v.errs = append(v.errs,
+							&fieldError{
+								v:              v.v,
+								tag:            tVal,
+								actualTag:      tVal,
+								ns:             v.str1,
+								structNs:       v.str2,
+								fieldLen:       uint8(len(cf.altName)),
+								structfieldLen: uint8(len(cf.name)),
+								value:          current.Interface(),
+								param:          ct.param,
+								kind:           kind,
+								typ:            typ,
+							},
+						)
+					}
+
+					return
+				}
+
+				ct = ct.next
+			}
+
+		default:
+
+			// set Field Level fields
+			v.slflParent = parent
+			v.flField = current
+			v.cf = cf
+			v.ct = ct
+
+			if !ct.fn(ctx, v) {
+
+				v.str1 = string(append(ns, cf.altName...))
+
+				if v.v.hasTagNameFunc {
+					v.str2 = string(append(structNs, cf.name...))
+				} else {
+					v.str2 = v.str1
+				}
+
+				v.errs = append(v.errs,
+					&fieldError{
+						v:              v.v,
+						tag:            ct.aliasTag,
+						actualTag:      ct.tag,
+						ns:             v.str1,
+						structNs:       v.str2,
+						fieldLen:       uint8(len(cf.altName)),
+						structfieldLen: uint8(len(cf.name)),
+						value:          current.Interface(),
+						param:          ct.param,
+						kind:           kind,
+						typ:            typ,
+					},
+				)
+
+				return
+
+			}
+
+			ct = ct.next
+		}
+	}
+
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/validator_instance.go b/vendor/gopkg.in/go-playground/validator.v9/validator_instance.go
new file mode 100644
index 0000000..d3a1543
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/validator_instance.go
@@ -0,0 +1,625 @@
+package validator
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+	"time"
+
+	ut "github.com/go-playground/universal-translator"
+)
+
+const (
+	defaultTagName     = "validate"
+	utf8HexComma       = "0x2C"
+	utf8Pipe           = "0x7C"
+	tagSeparator       = ","
+	orSeparator        = "|"
+	tagKeySeparator    = "="
+	structOnlyTag      = "structonly"
+	noStructLevelTag   = "nostructlevel"
+	omitempty          = "omitempty"
+	isdefault          = "isdefault"
+	skipValidationTag  = "-"
+	diveTag            = "dive"
+	keysTag            = "keys"
+	endKeysTag         = "endkeys"
+	requiredTag        = "required"
+	namespaceSeparator = "."
+	leftBracket        = "["
+	rightBracket       = "]"
+	restrictedTagChars = ".[],|=+()`~!@#$%^&*\\\"/?<>{}"
+	restrictedAliasErr = "Alias '%s' either contains restricted characters or is the same as a restricted tag needed for normal operation"
+	restrictedTagErr   = "Tag '%s' either contains restricted characters or is the same as a restricted tag needed for normal operation"
+)
+
+var (
+	timeType      = reflect.TypeOf(time.Time{})
+	defaultCField = &cField{namesEqual: true}
+)
+
+// FilterFunc is the type used to filter fields using
+// StructFiltered(...) function.
+// returning true results in the field being filtered/skiped from
+// validation
+type FilterFunc func(ns []byte) bool
+
+// CustomTypeFunc allows for overriding or adding custom field type handler functions
+// field = field value of the type to return a value to be validated
+// example Valuer from sql drive see https://golang.org/src/database/sql/driver/types.go?s=1210:1293#L29
+type CustomTypeFunc func(field reflect.Value) interface{}
+
+// TagNameFunc allows for adding of a custom tag name parser
+type TagNameFunc func(field reflect.StructField) string
+
+// Validate contains the validator settings and cache
+type Validate struct {
+	tagName          string
+	pool             *sync.Pool
+	hasCustomFuncs   bool
+	hasTagNameFunc   bool
+	tagNameFunc      TagNameFunc
+	structLevelFuncs map[reflect.Type]StructLevelFuncCtx
+	customFuncs      map[reflect.Type]CustomTypeFunc
+	aliases          map[string]string
+	validations      map[string]FuncCtx
+	transTagFunc     map[ut.Translator]map[string]TranslationFunc // map[<locale>]map[<tag>]TranslationFunc
+	tagCache         *tagCache
+	structCache      *structCache
+}
+
+// New returns a new instacne of 'validate' with sane defaults.
+func New() *Validate {
+
+	tc := new(tagCache)
+	tc.m.Store(make(map[string]*cTag))
+
+	sc := new(structCache)
+	sc.m.Store(make(map[reflect.Type]*cStruct))
+
+	v := &Validate{
+		tagName:     defaultTagName,
+		aliases:     make(map[string]string, len(bakedInAliases)),
+		validations: make(map[string]FuncCtx, len(bakedInValidators)),
+		tagCache:    tc,
+		structCache: sc,
+	}
+
+	// must copy alias validators for separate validations to be used in each validator instance
+	for k, val := range bakedInAliases {
+		v.RegisterAlias(k, val)
+	}
+
+	// must copy validators for separate validations to be used in each instance
+	for k, val := range bakedInValidators {
+
+		// no need to error check here, baked in will always be valid
+		v.registerValidation(k, wrapFunc(val), true)
+	}
+
+	v.pool = &sync.Pool{
+		New: func() interface{} {
+			return &validate{
+				v:        v,
+				ns:       make([]byte, 0, 64),
+				actualNs: make([]byte, 0, 64),
+				misc:     make([]byte, 32),
+			}
+		},
+	}
+
+	return v
+}
+
+// SetTagName allows for changing of the default tag name of 'validate'
+func (v *Validate) SetTagName(name string) {
+	v.tagName = name
+}
+
+// RegisterTagNameFunc registers a function to get another name from the
+// StructField eg. the JSON name
+func (v *Validate) RegisterTagNameFunc(fn TagNameFunc) {
+	v.tagNameFunc = fn
+	v.hasTagNameFunc = true
+}
+
+// RegisterValidation adds a validation with the given tag
+//
+// NOTES:
+// - if the key already exists, the previous validation function will be replaced.
+// - this method is not thread-safe it is intended that these all be registered prior to any validation
+func (v *Validate) RegisterValidation(tag string, fn Func) error {
+	return v.RegisterValidationCtx(tag, wrapFunc(fn))
+}
+
+// RegisterValidationCtx does the same as RegisterValidation on accepts a FuncCtx validation
+// allowing context.Context validation support.
+func (v *Validate) RegisterValidationCtx(tag string, fn FuncCtx) error {
+	return v.registerValidation(tag, fn, false)
+}
+
+func (v *Validate) registerValidation(tag string, fn FuncCtx, bakedIn bool) error {
+
+	if len(tag) == 0 {
+		return errors.New("Function Key cannot be empty")
+	}
+
+	if fn == nil {
+		return errors.New("Function cannot be empty")
+	}
+
+	_, ok := restrictedTags[tag]
+
+	if !bakedIn && (ok || strings.ContainsAny(tag, restrictedTagChars)) {
+		panic(fmt.Sprintf(restrictedTagErr, tag))
+	}
+
+	v.validations[tag] = fn
+
+	return nil
+}
+
+// RegisterAlias registers a mapping of a single validation tag that
+// defines a common or complex set of validation(s) to simplify adding validation
+// to structs.
+//
+// NOTE: this function is not thread-safe it is intended that these all be registered prior to any validation
+func (v *Validate) RegisterAlias(alias, tags string) {
+
+	_, ok := restrictedTags[alias]
+
+	if ok || strings.ContainsAny(alias, restrictedTagChars) {
+		panic(fmt.Sprintf(restrictedAliasErr, alias))
+	}
+
+	v.aliases[alias] = tags
+}
+
+// RegisterStructValidation registers a StructLevelFunc against a number of types.
+//
+// NOTE:
+// - this method is not thread-safe it is intended that these all be registered prior to any validation
+func (v *Validate) RegisterStructValidation(fn StructLevelFunc, types ...interface{}) {
+	v.RegisterStructValidationCtx(wrapStructLevelFunc(fn), types...)
+}
+
+// RegisterStructValidationCtx registers a StructLevelFuncCtx against a number of types and allows passing
+// of contextual validation information via context.Context.
+//
+// NOTE:
+// - this method is not thread-safe it is intended that these all be registered prior to any validation
+func (v *Validate) RegisterStructValidationCtx(fn StructLevelFuncCtx, types ...interface{}) {
+
+	if v.structLevelFuncs == nil {
+		v.structLevelFuncs = make(map[reflect.Type]StructLevelFuncCtx)
+	}
+
+	for _, t := range types {
+		v.structLevelFuncs[reflect.TypeOf(t)] = fn
+	}
+}
+
+// RegisterCustomTypeFunc registers a CustomTypeFunc against a number of types
+//
+// NOTE: this method is not thread-safe it is intended that these all be registered prior to any validation
+func (v *Validate) RegisterCustomTypeFunc(fn CustomTypeFunc, types ...interface{}) {
+
+	if v.customFuncs == nil {
+		v.customFuncs = make(map[reflect.Type]CustomTypeFunc)
+	}
+
+	for _, t := range types {
+		v.customFuncs[reflect.TypeOf(t)] = fn
+	}
+
+	v.hasCustomFuncs = true
+}
+
+// RegisterTranslation registers translations against the provided tag.
+func (v *Validate) RegisterTranslation(tag string, trans ut.Translator, registerFn RegisterTranslationsFunc, translationFn TranslationFunc) (err error) {
+
+	if v.transTagFunc == nil {
+		v.transTagFunc = make(map[ut.Translator]map[string]TranslationFunc)
+	}
+
+	if err = registerFn(trans); err != nil {
+		return
+	}
+
+	m, ok := v.transTagFunc[trans]
+	if !ok {
+		m = make(map[string]TranslationFunc)
+		v.transTagFunc[trans] = m
+	}
+
+	m[tag] = translationFn
+
+	return
+}
+
+// Struct validates a structs exposed fields, and automatically validates nested structs, unless otherwise specified.
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+func (v *Validate) Struct(s interface{}) error {
+	return v.StructCtx(context.Background(), s)
+}
+
+// StructCtx validates a structs exposed fields, and automatically validates nested structs, unless otherwise specified
+// and also allows passing of context.Context for contextual validation information.
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+func (v *Validate) StructCtx(ctx context.Context, s interface{}) (err error) {
+
+	val := reflect.ValueOf(s)
+	top := val
+
+	if val.Kind() == reflect.Ptr && !val.IsNil() {
+		val = val.Elem()
+	}
+
+	if val.Kind() != reflect.Struct || val.Type() == timeType {
+		return &InvalidValidationError{Type: reflect.TypeOf(s)}
+	}
+
+	// good to validate
+	vd := v.pool.Get().(*validate)
+	vd.top = top
+	vd.isPartial = false
+	// vd.hasExcludes = false // only need to reset in StructPartial and StructExcept
+
+	vd.validateStruct(ctx, top, val, val.Type(), vd.ns[0:0], vd.actualNs[0:0], nil)
+
+	if len(vd.errs) > 0 {
+		err = vd.errs
+		vd.errs = nil
+	}
+
+	v.pool.Put(vd)
+
+	return
+}
+
+// StructFiltered validates a structs exposed fields, that pass the FilterFunc check and automatically validates
+// nested structs, unless otherwise specified.
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+func (v *Validate) StructFiltered(s interface{}, fn FilterFunc) error {
+	return v.StructFilteredCtx(context.Background(), s, fn)
+}
+
+// StructFilteredCtx validates a structs exposed fields, that pass the FilterFunc check and automatically validates
+// nested structs, unless otherwise specified and also allows passing of contextual validation information via
+// context.Context
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+func (v *Validate) StructFilteredCtx(ctx context.Context, s interface{}, fn FilterFunc) (err error) {
+	val := reflect.ValueOf(s)
+	top := val
+
+	if val.Kind() == reflect.Ptr && !val.IsNil() {
+		val = val.Elem()
+	}
+
+	if val.Kind() != reflect.Struct || val.Type() == timeType {
+		return &InvalidValidationError{Type: reflect.TypeOf(s)}
+	}
+
+	// good to validate
+	vd := v.pool.Get().(*validate)
+	vd.top = top
+	vd.isPartial = true
+	vd.ffn = fn
+	// vd.hasExcludes = false // only need to reset in StructPartial and StructExcept
+
+	vd.validateStruct(context.Background(), top, val, val.Type(), vd.ns[0:0], vd.actualNs[0:0], nil)
+
+	if len(vd.errs) > 0 {
+		err = vd.errs
+		vd.errs = nil
+	}
+
+	v.pool.Put(vd)
+
+	return
+}
+
+// StructPartial validates the fields passed in only, ignoring all others.
+// Fields may be provided in a namespaced fashion relative to the  struct provided
+// eg. NestedStruct.Field or NestedArrayField[0].Struct.Name
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+func (v *Validate) StructPartial(s interface{}, fields ...string) error {
+	return v.StructPartialCtx(context.Background(), s, fields...)
+}
+
+// StructPartialCtx validates the fields passed in only, ignoring all others and allows passing of contextual
+// validation validation information via context.Context
+// Fields may be provided in a namespaced fashion relative to the  struct provided
+// eg. NestedStruct.Field or NestedArrayField[0].Struct.Name
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+func (v *Validate) StructPartialCtx(ctx context.Context, s interface{}, fields ...string) (err error) {
+	val := reflect.ValueOf(s)
+	top := val
+
+	if val.Kind() == reflect.Ptr && !val.IsNil() {
+		val = val.Elem()
+	}
+
+	if val.Kind() != reflect.Struct || val.Type() == timeType {
+		return &InvalidValidationError{Type: reflect.TypeOf(s)}
+	}
+
+	// good to validate
+	vd := v.pool.Get().(*validate)
+	vd.top = top
+	vd.isPartial = true
+	vd.ffn = nil
+	vd.hasExcludes = false
+	vd.includeExclude = make(map[string]struct{})
+
+	typ := val.Type()
+	name := typ.Name()
+
+	if fields != nil {
+		for _, k := range fields {
+
+			flds := strings.Split(k, namespaceSeparator)
+			if len(flds) > 0 {
+
+				vd.misc = append(vd.misc[0:0], name...)
+				vd.misc = append(vd.misc, '.')
+
+				for _, s := range flds {
+
+					idx := strings.Index(s, leftBracket)
+
+					if idx != -1 {
+						for idx != -1 {
+							vd.misc = append(vd.misc, s[:idx]...)
+							vd.includeExclude[string(vd.misc)] = struct{}{}
+
+							idx2 := strings.Index(s, rightBracket)
+							idx2++
+							vd.misc = append(vd.misc, s[idx:idx2]...)
+							vd.includeExclude[string(vd.misc)] = struct{}{}
+							s = s[idx2:]
+							idx = strings.Index(s, leftBracket)
+						}
+					} else {
+
+						vd.misc = append(vd.misc, s...)
+						vd.includeExclude[string(vd.misc)] = struct{}{}
+					}
+
+					vd.misc = append(vd.misc, '.')
+				}
+			}
+		}
+	}
+
+	vd.validateStruct(ctx, top, val, typ, vd.ns[0:0], vd.actualNs[0:0], nil)
+
+	if len(vd.errs) > 0 {
+		err = vd.errs
+		vd.errs = nil
+	}
+
+	v.pool.Put(vd)
+
+	return
+}
+
+// StructExcept validates all fields except the ones passed in.
+// Fields may be provided in a namespaced fashion relative to the  struct provided
+// i.e. NestedStruct.Field or NestedArrayField[0].Struct.Name
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+func (v *Validate) StructExcept(s interface{}, fields ...string) error {
+	return v.StructExceptCtx(context.Background(), s, fields...)
+}
+
+// StructExceptCtx validates all fields except the ones passed in and allows passing of contextual
+// validation validation information via context.Context
+// Fields may be provided in a namespaced fashion relative to the  struct provided
+// i.e. NestedStruct.Field or NestedArrayField[0].Struct.Name
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+func (v *Validate) StructExceptCtx(ctx context.Context, s interface{}, fields ...string) (err error) {
+	val := reflect.ValueOf(s)
+	top := val
+
+	if val.Kind() == reflect.Ptr && !val.IsNil() {
+		val = val.Elem()
+	}
+
+	if val.Kind() != reflect.Struct || val.Type() == timeType {
+		return &InvalidValidationError{Type: reflect.TypeOf(s)}
+	}
+
+	// good to validate
+	vd := v.pool.Get().(*validate)
+	vd.top = top
+	vd.isPartial = true
+	vd.ffn = nil
+	vd.hasExcludes = true
+	vd.includeExclude = make(map[string]struct{})
+
+	typ := val.Type()
+	name := typ.Name()
+
+	for _, key := range fields {
+
+		vd.misc = vd.misc[0:0]
+
+		if len(name) > 0 {
+			vd.misc = append(vd.misc, name...)
+			vd.misc = append(vd.misc, '.')
+		}
+
+		vd.misc = append(vd.misc, key...)
+		vd.includeExclude[string(vd.misc)] = struct{}{}
+	}
+
+	vd.validateStruct(ctx, top, val, typ, vd.ns[0:0], vd.actualNs[0:0], nil)
+
+	if len(vd.errs) > 0 {
+		err = vd.errs
+		vd.errs = nil
+	}
+
+	v.pool.Put(vd)
+
+	return
+}
+
+// Var validates a single variable using tag style validation.
+// eg.
+// var i int
+// validate.Var(i, "gt=1,lt=10")
+//
+// WARNING: a struct can be passed for validation eg. time.Time is a struct or
+// if you have a custom type and have registered a custom type handler, so must
+// allow it; however unforseen validations will occur if trying to validate a
+// struct that is meant to be passed to 'validate.Struct'
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+// validate Array, Slice and maps fields which may contain more than one error
+func (v *Validate) Var(field interface{}, tag string) error {
+	return v.VarCtx(context.Background(), field, tag)
+}
+
+// VarCtx validates a single variable using tag style validation and allows passing of contextual
+// validation validation information via context.Context.
+// eg.
+// var i int
+// validate.Var(i, "gt=1,lt=10")
+//
+// WARNING: a struct can be passed for validation eg. time.Time is a struct or
+// if you have a custom type and have registered a custom type handler, so must
+// allow it; however unforseen validations will occur if trying to validate a
+// struct that is meant to be passed to 'validate.Struct'
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+// validate Array, Slice and maps fields which may contain more than one error
+func (v *Validate) VarCtx(ctx context.Context, field interface{}, tag string) (err error) {
+	if len(tag) == 0 || tag == skipValidationTag {
+		return nil
+	}
+
+	// find cached tag
+	ctag, ok := v.tagCache.Get(tag)
+	if !ok {
+		v.tagCache.lock.Lock()
+		defer v.tagCache.lock.Unlock()
+
+		// could have been multiple trying to access, but once first is done this ensures tag
+		// isn't parsed again.
+		ctag, ok = v.tagCache.Get(tag)
+		if !ok {
+			ctag, _ = v.parseFieldTagsRecursive(tag, "", "", false)
+			v.tagCache.Set(tag, ctag)
+		}
+	}
+
+	val := reflect.ValueOf(field)
+
+	vd := v.pool.Get().(*validate)
+	vd.top = val
+	vd.isPartial = false
+
+	vd.traverseField(ctx, val, val, vd.ns[0:0], vd.actualNs[0:0], defaultCField, ctag)
+
+	if len(vd.errs) > 0 {
+		err = vd.errs
+		vd.errs = nil
+	}
+
+	v.pool.Put(vd)
+
+	return
+}
+
+// VarWithValue validates a single variable, against another variable/field's value using tag style validation
+// eg.
+// s1 := "abcd"
+// s2 := "abcd"
+// validate.VarWithValue(s1, s2, "eqcsfield") // returns true
+//
+// WARNING: a struct can be passed for validation eg. time.Time is a struct or
+// if you have a custom type and have registered a custom type handler, so must
+// allow it; however unforseen validations will occur if trying to validate a
+// struct that is meant to be passed to 'validate.Struct'
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+// validate Array, Slice and maps fields which may contain more than one error
+func (v *Validate) VarWithValue(field interface{}, other interface{}, tag string) error {
+	return v.VarWithValueCtx(context.Background(), field, other, tag)
+}
+
+// VarWithValueCtx validates a single variable, against another variable/field's value using tag style validation and
+// allows passing of contextual validation validation information via context.Context.
+// eg.
+// s1 := "abcd"
+// s2 := "abcd"
+// validate.VarWithValue(s1, s2, "eqcsfield") // returns true
+//
+// WARNING: a struct can be passed for validation eg. time.Time is a struct or
+// if you have a custom type and have registered a custom type handler, so must
+// allow it; however unforseen validations will occur if trying to validate a
+// struct that is meant to be passed to 'validate.Struct'
+//
+// It returns InvalidValidationError for bad values passed in and nil or ValidationErrors as error otherwise.
+// You will need to assert the error if it's not nil eg. err.(validator.ValidationErrors) to access the array of errors.
+// validate Array, Slice and maps fields which may contain more than one error
+func (v *Validate) VarWithValueCtx(ctx context.Context, field interface{}, other interface{}, tag string) (err error) {
+	if len(tag) == 0 || tag == skipValidationTag {
+		return nil
+	}
+
+	// find cached tag
+	ctag, ok := v.tagCache.Get(tag)
+	if !ok {
+		v.tagCache.lock.Lock()
+		defer v.tagCache.lock.Unlock()
+
+		// could have been multiple trying to access, but once first is done this ensures tag
+		// isn't parsed again.
+		ctag, ok = v.tagCache.Get(tag)
+		if !ok {
+			ctag, _ = v.parseFieldTagsRecursive(tag, "", "", false)
+			v.tagCache.Set(tag, ctag)
+		}
+	}
+
+	otherVal := reflect.ValueOf(other)
+
+	vd := v.pool.Get().(*validate)
+	vd.top = otherVal
+	vd.isPartial = false
+
+	vd.traverseField(ctx, otherVal, reflect.ValueOf(field), vd.ns[0:0], vd.actualNs[0:0], defaultCField, ctag)
+
+	if len(vd.errs) > 0 {
+		err = vd.errs
+		vd.errs = nil
+	}
+
+	v.pool.Put(vd)
+
+	return
+}
diff --git a/vendor/gopkg.in/go-playground/validator.v9/validator_test.go b/vendor/gopkg.in/go-playground/validator.v9/validator_test.go
new file mode 100644
index 0000000..7d085e8
--- /dev/null
+++ b/vendor/gopkg.in/go-playground/validator.v9/validator_test.go
@@ -0,0 +1,7569 @@
+package validator
+
+import (
+	"bytes"
+	"context"
+	"database/sql"
+	"database/sql/driver"
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/go-playground/locales/en"
+	"github.com/go-playground/locales/fr"
+	"github.com/go-playground/locales/nl"
+	ut "github.com/go-playground/universal-translator"
+	. "gopkg.in/go-playground/assert.v1"
+)
+
+// NOTES:
+// - Run "go test" to run tests
+// - Run "gocov test | gocov report" to report on test converage by file
+// - Run "gocov test | gocov annotate -" to report on all code and functions, those ,marked with "MISS" were never called
+//
+// or
+//
+// -- may be a good idea to change to output path to somewherelike /tmp
+// go test -coverprofile cover.out && go tool cover -html=cover.out -o cover.html
+//
+//
+// go test -cpuprofile cpu.out
+// ./validator.test -test.bench=. -test.cpuprofile=cpu.prof
+// go tool pprof validator.test cpu.prof
+//
+//
+// go test -memprofile mem.out
+
+type I interface {
+	Foo() string
+}
+
+type Impl struct {
+	F string `validate:"len=3"`
+}
+
+func (i *Impl) Foo() string {
+	return i.F
+}
+
+type SubTest struct {
+	Test string `validate:"required"`
+}
+
+type TestInterface struct {
+	Iface I
+}
+
+type TestString struct {
+	BlankTag  string `validate:""`
+	Required  string `validate:"required"`
+	Len       string `validate:"len=10"`
+	Min       string `validate:"min=1"`
+	Max       string `validate:"max=10"`
+	MinMax    string `validate:"min=1,max=10"`
+	Lt        string `validate:"lt=10"`
+	Lte       string `validate:"lte=10"`
+	Gt        string `validate:"gt=10"`
+	Gte       string `validate:"gte=10"`
+	OmitEmpty string `validate:"omitempty,min=1,max=10"`
+	Sub       *SubTest
+	SubIgnore *SubTest `validate:"-"`
+	Anonymous struct {
+		A string `validate:"required"`
+	}
+	Iface I
+}
+
+type TestUint64 struct {
+	Required  uint64 `validate:"required"`
+	Len       uint64 `validate:"len=10"`
+	Min       uint64 `validate:"min=1"`
+	Max       uint64 `validate:"max=10"`
+	MinMax    uint64 `validate:"min=1,max=10"`
+	OmitEmpty uint64 `validate:"omitempty,min=1,max=10"`
+}
+
+type TestFloat64 struct {
+	Required  float64 `validate:"required"`
+	Len       float64 `validate:"len=10"`
+	Min       float64 `validate:"min=1"`
+	Max       float64 `validate:"max=10"`
+	MinMax    float64 `validate:"min=1,max=10"`
+	Lte       float64 `validate:"lte=10"`
+	OmitEmpty float64 `validate:"omitempty,min=1,max=10"`
+}
+
+type TestSlice struct {
+	Required  []int `validate:"required"`
+	Len       []int `validate:"len=10"`
+	Min       []int `validate:"min=1"`
+	Max       []int `validate:"max=10"`
+	MinMax    []int `validate:"min=1,max=10"`
+	OmitEmpty []int `validate:"omitempty,min=1,max=10"`
+}
+
+func AssertError(t *testing.T, err error, nsKey, structNsKey, field, structField, expectedTag string) {
+
+	errs := err.(ValidationErrors)
+
+	found := false
+	var fe FieldError
+
+	for i := 0; i < len(errs); i++ {
+		if errs[i].Namespace() == nsKey && errs[i].StructNamespace() == structNsKey {
+			found = true
+			fe = errs[i]
+			break
+		}
+	}
+
+	EqualSkip(t, 2, found, true)
+	NotEqualSkip(t, 2, fe, nil)
+	EqualSkip(t, 2, fe.Field(), field)
+	EqualSkip(t, 2, fe.StructField(), structField)
+	EqualSkip(t, 2, fe.Tag(), expectedTag)
+}
+
+func AssertDeepError(t *testing.T, err error, nsKey, structNsKey, field, structField, expectedTag, actualTag string) {
+	errs := err.(ValidationErrors)
+
+	found := false
+	var fe FieldError
+
+	for i := 0; i < len(errs); i++ {
+		if errs[i].Namespace() == nsKey && errs[i].StructNamespace() == structNsKey && errs[i].Tag() == expectedTag && errs[i].ActualTag() == actualTag {
+			found = true
+			fe = errs[i]
+			break
+		}
+	}
+
+	EqualSkip(t, 2, found, true)
+	NotEqualSkip(t, 2, fe, nil)
+	EqualSkip(t, 2, fe.Field(), field)
+	EqualSkip(t, 2, fe.StructField(), structField)
+}
+
+func getError(err error, nsKey, structNsKey string) FieldError {
+
+	errs := err.(ValidationErrors)
+
+	var fe FieldError
+
+	for i := 0; i < len(errs); i++ {
+		if errs[i].Namespace() == nsKey && errs[i].StructNamespace() == structNsKey {
+			fe = errs[i]
+			break
+		}
+	}
+
+	return fe
+}
+
+type valuer struct {
+	Name string
+}
+
+func (v valuer) Value() (driver.Value, error) {
+
+	if v.Name == "errorme" {
+		panic("SQL Driver Valuer error: some kind of error")
+		// return nil, errors.New("some kind of error")
+	}
+
+	if len(v.Name) == 0 {
+		return nil, nil
+	}
+
+	return v.Name, nil
+}
+
+type MadeUpCustomType struct {
+	FirstName string
+	LastName  string
+}
+
+func ValidateCustomType(field reflect.Value) interface{} {
+
+	if cust, ok := field.Interface().(MadeUpCustomType); ok {
+
+		if len(cust.FirstName) == 0 || len(cust.LastName) == 0 {
+			return ""
+		}
+
+		return cust.FirstName + " " + cust.LastName
+	}
+
+	return ""
+}
+
+func OverrideIntTypeForSomeReason(field reflect.Value) interface{} {
+
+	if i, ok := field.Interface().(int); ok {
+		if i == 1 {
+			return "1"
+		}
+
+		if i == 2 {
+			return "12"
+		}
+	}
+
+	return ""
+}
+
+type CustomMadeUpStruct struct {
+	MadeUp        MadeUpCustomType `validate:"required"`
+	OverriddenInt int              `validate:"gt=1"`
+}
+
+func ValidateValuerType(field reflect.Value) interface{} {
+
+	if valuer, ok := field.Interface().(driver.Valuer); ok {
+
+		val, err := valuer.Value()
+		if err != nil {
+			// handle the error how you want
+			return nil
+		}
+
+		return val
+	}
+
+	return nil
+}
+
+type TestPartial struct {
+	NoTag     string
+	BlankTag  string     `validate:""`
+	Required  string     `validate:"required"`
+	SubSlice  []*SubTest `validate:"required,dive"`
+	Sub       *SubTest
+	SubIgnore *SubTest `validate:"-"`
+	Anonymous struct {
+		A         string     `validate:"required"`
+		ASubSlice []*SubTest `validate:"required,dive"`
+
+		SubAnonStruct []struct {
+			Test      string `validate:"required"`
+			OtherTest string `validate:"required"`
+		} `validate:"required,dive"`
+	}
+}
+
+type TestStruct struct {
+	String string `validate:"required" json:"StringVal"`
+}
+
+func StructValidationTestStructSuccess(sl StructLevel) {
+
+	st := sl.Current().Interface().(TestStruct)
+
+	if st.String != "good value" {
+		sl.ReportError(st.String, "StringVal", "String", "badvalueteststruct", "good value")
+	}
+}
+
+func StructValidationTestStruct(sl StructLevel) {
+
+	st := sl.Current().Interface().(TestStruct)
+
+	if st.String != "bad value" {
+		sl.ReportError(st.String, "StringVal", "String", "badvalueteststruct", "bad value")
+	}
+}
+
+func StructValidationNoTestStructCustomName(sl StructLevel) {
+
+	st := sl.Current().Interface().(TestStruct)
+
+	if st.String != "bad value" {
+		sl.ReportError(st.String, "String", "", "badvalueteststruct", "bad value")
+	}
+}
+
+func StructValidationTestStructInvalid(sl StructLevel) {
+
+	st := sl.Current().Interface().(TestStruct)
+
+	if st.String != "bad value" {
+		sl.ReportError(nil, "StringVal", "String", "badvalueteststruct", "bad value")
+	}
+}
+
+func StructValidationTestStructReturnValidationErrors(sl StructLevel) {
+
+	s := sl.Current().Interface().(TestStructReturnValidationErrors)
+
+	errs := sl.Validator().Struct(s.Inner1.Inner2)
+	if errs == nil {
+		return
+	}
+
+	sl.ReportValidationErrors("Inner1.", "Inner1.", errs.(ValidationErrors))
+}
+
+func StructValidationTestStructReturnValidationErrors2(sl StructLevel) {
+
+	s := sl.Current().Interface().(TestStructReturnValidationErrors)
+
+	errs := sl.Validator().Struct(s.Inner1.Inner2)
+	if errs == nil {
+		return
+	}
+
+	sl.ReportValidationErrors("Inner1JSON.", "Inner1.", errs.(ValidationErrors))
+}
+
+type TestStructReturnValidationErrorsInner2 struct {
+	String string `validate:"required" json:"JSONString"`
+}
+
+type TestStructReturnValidationErrorsInner1 struct {
+	Inner2 *TestStructReturnValidationErrorsInner2
+}
+
+type TestStructReturnValidationErrors struct {
+	Inner1 *TestStructReturnValidationErrorsInner1 `json:"Inner1JSON"`
+}
+
+type StructLevelInvalidErr struct {
+	Value string
+}
+
+func StructLevelInvalidError(sl StructLevel) {
+
+	top := sl.Top().Interface().(StructLevelInvalidErr)
+	s := sl.Current().Interface().(StructLevelInvalidErr)
+
+	if top.Value == s.Value {
+		sl.ReportError(nil, "Value", "Value", "required", "")
+	}
+}
+
+func TestStructLevelInvalidError(t *testing.T) {
+
+	validate := New()
+	validate.RegisterStructValidation(StructLevelInvalidError, StructLevelInvalidErr{})
+
+	var test StructLevelInvalidErr
+
+	err := validate.Struct(test)
+	NotEqual(t, err, nil)
+
+	errs, ok := err.(ValidationErrors)
+	Equal(t, ok, true)
+
+	fe := errs[0]
+	Equal(t, fe.Field(), "Value")
+	Equal(t, fe.StructField(), "Value")
+	Equal(t, fe.Namespace(), "StructLevelInvalidErr.Value")
+	Equal(t, fe.StructNamespace(), "StructLevelInvalidErr.Value")
+	Equal(t, fe.Tag(), "required")
+	Equal(t, fe.ActualTag(), "required")
+	Equal(t, fe.Kind(), reflect.Invalid)
+	Equal(t, fe.Type(), reflect.TypeOf(nil))
+}
+
+func TestNameNamespace(t *testing.T) {
+
+	type Inner2Namespace struct {
+		String []string `validate:"dive,required" json:"JSONString"`
+	}
+
+	type Inner1Namespace struct {
+		Inner2 *Inner2Namespace `json:"Inner2JSON"`
+	}
+
+	type Namespace struct {
+		Inner1 *Inner1Namespace `json:"Inner1JSON"`
+	}
+
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	i2 := &Inner2Namespace{String: []string{"ok", "ok", "ok"}}
+	i1 := &Inner1Namespace{Inner2: i2}
+	ns := &Namespace{Inner1: i1}
+
+	errs := validate.Struct(ns)
+	Equal(t, errs, nil)
+
+	i2.String[1] = ""
+
+	errs = validate.Struct(ns)
+	NotEqual(t, errs, nil)
+
+	ve := errs.(ValidationErrors)
+	Equal(t, len(ve), 1)
+	AssertError(t, errs, "Namespace.Inner1JSON.Inner2JSON.JSONString[1]", "Namespace.Inner1.Inner2.String[1]", "JSONString[1]", "String[1]", "required")
+
+	fe := getError(ve, "Namespace.Inner1JSON.Inner2JSON.JSONString[1]", "Namespace.Inner1.Inner2.String[1]")
+	NotEqual(t, fe, nil)
+	Equal(t, fe.Field(), "JSONString[1]")
+	Equal(t, fe.StructField(), "String[1]")
+	Equal(t, fe.Namespace(), "Namespace.Inner1JSON.Inner2JSON.JSONString[1]")
+	Equal(t, fe.StructNamespace(), "Namespace.Inner1.Inner2.String[1]")
+}
+
+func TestAnonymous(t *testing.T) {
+
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type Test struct {
+		Anonymous struct {
+			A string `validate:"required" json:"EH"`
+		}
+		AnonymousB struct {
+			B string `validate:"required" json:"BEE"`
+		}
+		anonymousC struct {
+			c string `validate:"required"`
+		}
+	}
+
+	tst := &Test{
+		Anonymous: struct {
+			A string `validate:"required" json:"EH"`
+		}{
+			A: "1",
+		},
+		AnonymousB: struct {
+			B string `validate:"required" json:"BEE"`
+		}{
+			B: "",
+		},
+		anonymousC: struct {
+			c string `validate:"required"`
+		}{
+			c: "",
+		},
+	}
+
+	err := validate.Struct(tst)
+	NotEqual(t, err, nil)
+
+	errs := err.(ValidationErrors)
+
+	Equal(t, len(errs), 1)
+	AssertError(t, errs, "Test.AnonymousB.BEE", "Test.AnonymousB.B", "BEE", "B", "required")
+
+	fe := getError(errs, "Test.AnonymousB.BEE", "Test.AnonymousB.B")
+	NotEqual(t, fe, nil)
+	Equal(t, fe.Field(), "BEE")
+	Equal(t, fe.StructField(), "B")
+
+	s := struct {
+		c string `validate:"required"`
+	}{
+		c: "",
+	}
+
+	err = validate.Struct(s)
+	Equal(t, err, nil)
+}
+
+func TestAnonymousSameStructDifferentTags(t *testing.T) {
+
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type Test struct {
+		A interface{}
+	}
+
+	tst := &Test{
+		A: struct {
+			A string `validate:"required"`
+		}{
+			A: "",
+		},
+	}
+
+	err := validate.Struct(tst)
+	NotEqual(t, err, nil)
+
+	errs := err.(ValidationErrors)
+
+	Equal(t, len(errs), 1)
+	AssertError(t, errs, "Test.A.A", "Test.A.A", "A", "A", "required")
+
+	tst = &Test{
+		A: struct {
+			A string `validate:"omitempty,required"`
+		}{
+			A: "",
+		},
+	}
+
+	err = validate.Struct(tst)
+	Equal(t, err, nil)
+}
+
+func TestStructLevelReturnValidationErrors(t *testing.T) {
+
+	validate := New()
+	validate.RegisterStructValidation(StructValidationTestStructReturnValidationErrors, TestStructReturnValidationErrors{})
+
+	inner2 := &TestStructReturnValidationErrorsInner2{
+		String: "I'm HERE",
+	}
+
+	inner1 := &TestStructReturnValidationErrorsInner1{
+		Inner2: inner2,
+	}
+
+	val := &TestStructReturnValidationErrors{
+		Inner1: inner1,
+	}
+
+	errs := validate.Struct(val)
+	Equal(t, errs, nil)
+
+	inner2.String = ""
+
+	errs = validate.Struct(val)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 2)
+	AssertError(t, errs, "TestStructReturnValidationErrors.Inner1.Inner2.String", "TestStructReturnValidationErrors.Inner1.Inner2.String", "String", "String", "required")
+	// this is an extra error reported from struct validation
+	AssertError(t, errs, "TestStructReturnValidationErrors.Inner1.TestStructReturnValidationErrorsInner2.String", "TestStructReturnValidationErrors.Inner1.TestStructReturnValidationErrorsInner2.String", "String", "String", "required")
+}
+
+func TestStructLevelReturnValidationErrorsWithJSON(t *testing.T) {
+
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+	validate.RegisterStructValidation(StructValidationTestStructReturnValidationErrors2, TestStructReturnValidationErrors{})
+
+	inner2 := &TestStructReturnValidationErrorsInner2{
+		String: "I'm HERE",
+	}
+
+	inner1 := &TestStructReturnValidationErrorsInner1{
+		Inner2: inner2,
+	}
+
+	val := &TestStructReturnValidationErrors{
+		Inner1: inner1,
+	}
+
+	errs := validate.Struct(val)
+	Equal(t, errs, nil)
+
+	inner2.String = ""
+
+	errs = validate.Struct(val)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 2)
+	AssertError(t, errs, "TestStructReturnValidationErrors.Inner1JSON.Inner2.JSONString", "TestStructReturnValidationErrors.Inner1.Inner2.String", "JSONString", "String", "required")
+	// this is an extra error reported from struct validation, it's a badly formatted one, but on purpose
+	AssertError(t, errs, "TestStructReturnValidationErrors.Inner1JSON.TestStructReturnValidationErrorsInner2.JSONString", "TestStructReturnValidationErrors.Inner1.TestStructReturnValidationErrorsInner2.String", "JSONString", "String", "required")
+
+	fe := getError(errs, "TestStructReturnValidationErrors.Inner1JSON.Inner2.JSONString", "TestStructReturnValidationErrors.Inner1.Inner2.String")
+	NotEqual(t, fe, nil)
+
+	// check for proper JSON namespace
+	Equal(t, fe.Field(), "JSONString")
+	Equal(t, fe.StructField(), "String")
+	Equal(t, fe.Namespace(), "TestStructReturnValidationErrors.Inner1JSON.Inner2.JSONString")
+	Equal(t, fe.StructNamespace(), "TestStructReturnValidationErrors.Inner1.Inner2.String")
+
+	fe = getError(errs, "TestStructReturnValidationErrors.Inner1JSON.TestStructReturnValidationErrorsInner2.JSONString", "TestStructReturnValidationErrors.Inner1.TestStructReturnValidationErrorsInner2.String")
+	NotEqual(t, fe, nil)
+
+	// check for proper JSON namespace
+	Equal(t, fe.Field(), "JSONString")
+	Equal(t, fe.StructField(), "String")
+	Equal(t, fe.Namespace(), "TestStructReturnValidationErrors.Inner1JSON.TestStructReturnValidationErrorsInner2.JSONString")
+	Equal(t, fe.StructNamespace(), "TestStructReturnValidationErrors.Inner1.TestStructReturnValidationErrorsInner2.String")
+}
+
+func TestStructLevelValidations(t *testing.T) {
+
+	v1 := New()
+	v1.RegisterStructValidation(StructValidationTestStruct, TestStruct{})
+
+	tst := &TestStruct{
+		String: "good value",
+	}
+
+	errs := v1.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestStruct.StringVal", "TestStruct.String", "StringVal", "String", "badvalueteststruct")
+
+	v2 := New()
+	v2.RegisterStructValidation(StructValidationNoTestStructCustomName, TestStruct{})
+
+	errs = v2.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestStruct.String", "TestStruct.String", "String", "String", "badvalueteststruct")
+
+	v3 := New()
+	v3.RegisterStructValidation(StructValidationTestStructInvalid, TestStruct{})
+
+	errs = v3.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestStruct.StringVal", "TestStruct.String", "StringVal", "String", "badvalueteststruct")
+
+	v4 := New()
+	v4.RegisterStructValidation(StructValidationTestStructSuccess, TestStruct{})
+
+	errs = v4.Struct(tst)
+	Equal(t, errs, nil)
+}
+
+func TestAliasTags(t *testing.T) {
+
+	validate := New()
+	validate.RegisterAlias("iscoloralias", "hexcolor|rgb|rgba|hsl|hsla")
+
+	s := "rgb(255,255,255)"
+	errs := validate.Var(s, "iscoloralias")
+	Equal(t, errs, nil)
+
+	s = ""
+	errs = validate.Var(s, "omitempty,iscoloralias")
+	Equal(t, errs, nil)
+
+	s = "rgb(255,255,0)"
+	errs = validate.Var(s, "iscoloralias,len=5")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "len")
+
+	type Test struct {
+		Color string `validate:"iscoloralias"`
+	}
+
+	tst := &Test{
+		Color: "#000",
+	}
+
+	errs = validate.Struct(tst)
+	Equal(t, errs, nil)
+
+	tst.Color = "cfvre"
+	errs = validate.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.Color", "Test.Color", "Color", "Color", "iscoloralias")
+
+	fe := getError(errs, "Test.Color", "Test.Color")
+	NotEqual(t, fe, nil)
+	Equal(t, fe.ActualTag(), "hexcolor|rgb|rgba|hsl|hsla")
+
+	validate.RegisterAlias("req", "required,dive,iscoloralias")
+	arr := []string{"val1", "#fff", "#000"}
+
+	errs = validate.Var(arr, "req")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "[0]", "[0]", "[0]", "[0]", "iscoloralias")
+
+	PanicMatches(t, func() { validate.RegisterAlias("exists!", "gt=5,lt=10") }, "Alias 'exists!' either contains restricted characters or is the same as a restricted tag needed for normal operation")
+}
+
+func TestNilValidator(t *testing.T) {
+
+	type TestStruct struct {
+		Test string `validate:"required"`
+	}
+
+	ts := TestStruct{}
+
+	var val *Validate
+
+	fn := func(fl FieldLevel) bool {
+
+		return fl.Parent().String() == fl.Field().String()
+	}
+
+	PanicMatches(t, func() { val.RegisterCustomTypeFunc(ValidateCustomType, MadeUpCustomType{}) }, "runtime error: invalid memory address or nil pointer dereference")
+	PanicMatches(t, func() { val.RegisterValidation("something", fn) }, "runtime error: invalid memory address or nil pointer dereference")
+	PanicMatches(t, func() { val.Var(ts.Test, "required") }, "runtime error: invalid memory address or nil pointer dereference")
+	PanicMatches(t, func() { val.VarWithValue("test", ts.Test, "required") }, "runtime error: invalid memory address or nil pointer dereference")
+	PanicMatches(t, func() { val.Struct(ts) }, "runtime error: invalid memory address or nil pointer dereference")
+	PanicMatches(t, func() { val.StructExcept(ts, "Test") }, "runtime error: invalid memory address or nil pointer dereference")
+	PanicMatches(t, func() { val.StructPartial(ts, "Test") }, "runtime error: invalid memory address or nil pointer dereference")
+}
+
+func TestStructPartial(t *testing.T) {
+
+	p1 := []string{
+		"NoTag",
+		"Required",
+	}
+
+	p2 := []string{
+		"SubSlice[0].Test",
+		"Sub",
+		"SubIgnore",
+		"Anonymous.A",
+	}
+
+	p3 := []string{
+		"SubTest.Test",
+	}
+
+	p4 := []string{
+		"A",
+	}
+
+	tPartial := &TestPartial{
+		NoTag:    "NoTag",
+		Required: "Required",
+
+		SubSlice: []*SubTest{
+			{
+
+				Test: "Required",
+			},
+			{
+
+				Test: "Required",
+			},
+		},
+
+		Sub: &SubTest{
+			Test: "1",
+		},
+		SubIgnore: &SubTest{
+			Test: "",
+		},
+		Anonymous: struct {
+			A             string     `validate:"required"`
+			ASubSlice     []*SubTest `validate:"required,dive"`
+			SubAnonStruct []struct {
+				Test      string `validate:"required"`
+				OtherTest string `validate:"required"`
+			} `validate:"required,dive"`
+		}{
+			A: "1",
+			ASubSlice: []*SubTest{
+				{
+					Test: "Required",
+				},
+				{
+					Test: "Required",
+				},
+			},
+
+			SubAnonStruct: []struct {
+				Test      string `validate:"required"`
+				OtherTest string `validate:"required"`
+			}{
+				{"Required", "RequiredOther"},
+				{"Required", "RequiredOther"},
+			},
+		},
+	}
+
+	validate := New()
+
+	// the following should all return no errors as everything is valid in
+	// the default state
+	errs := validate.StructPartialCtx(context.Background(), tPartial, p1...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructPartial(tPartial, p2...)
+	Equal(t, errs, nil)
+
+	// this isn't really a robust test, but is ment to illustrate the ANON CASE below
+	errs = validate.StructPartial(tPartial.SubSlice[0], p3...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructExceptCtx(context.Background(), tPartial, p1...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructExcept(tPartial, p2...)
+	Equal(t, errs, nil)
+
+	// mod tParial for required feild and re-test making sure invalid fields are NOT required:
+	tPartial.Required = ""
+
+	errs = validate.StructExcept(tPartial, p1...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructPartial(tPartial, p2...)
+	Equal(t, errs, nil)
+
+	// inversion and retesting Partial to generate failures:
+	errs = validate.StructPartial(tPartial, p1...)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.Required", "TestPartial.Required", "Required", "Required", "required")
+
+	errs = validate.StructExcept(tPartial, p2...)
+	AssertError(t, errs, "TestPartial.Required", "TestPartial.Required", "Required", "Required", "required")
+
+	// reset Required field, and set nested struct
+	tPartial.Required = "Required"
+	tPartial.Anonymous.A = ""
+
+	// will pass as unset feilds is not going to be tested
+	errs = validate.StructPartial(tPartial, p1...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructExcept(tPartial, p2...)
+	Equal(t, errs, nil)
+
+	// ANON CASE the response here is strange, it clearly does what it is being told to
+	errs = validate.StructExcept(tPartial.Anonymous, p4...)
+	Equal(t, errs, nil)
+
+	// will fail as unset feild is tested
+	errs = validate.StructPartial(tPartial, p2...)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.Anonymous.A", "TestPartial.Anonymous.A", "A", "A", "required")
+
+	errs = validate.StructExcept(tPartial, p1...)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.Anonymous.A", "TestPartial.Anonymous.A", "A", "A", "required")
+
+	// reset nested struct and unset struct in slice
+	tPartial.Anonymous.A = "Required"
+	tPartial.SubSlice[0].Test = ""
+
+	// these will pass as unset item is NOT tested
+	errs = validate.StructPartial(tPartial, p1...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructExcept(tPartial, p2...)
+	Equal(t, errs, nil)
+
+	// these will fail as unset item IS tested
+	errs = validate.StructExcept(tPartial, p1...)
+	AssertError(t, errs, "TestPartial.SubSlice[0].Test", "TestPartial.SubSlice[0].Test", "Test", "Test", "required")
+	Equal(t, len(errs.(ValidationErrors)), 1)
+
+	errs = validate.StructPartial(tPartial, p2...)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.SubSlice[0].Test", "TestPartial.SubSlice[0].Test", "Test", "Test", "required")
+	Equal(t, len(errs.(ValidationErrors)), 1)
+
+	// Unset second slice member concurrently to test dive behavior:
+	tPartial.SubSlice[1].Test = ""
+
+	errs = validate.StructPartial(tPartial, p1...)
+	Equal(t, errs, nil)
+
+	// NOTE: When specifying nested items, it is still the users responsibility
+	// to specify the dive tag, the library does not override this.
+	errs = validate.StructExcept(tPartial, p2...)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.SubSlice[1].Test", "TestPartial.SubSlice[1].Test", "Test", "Test", "required")
+
+	errs = validate.StructExcept(tPartial, p1...)
+	Equal(t, len(errs.(ValidationErrors)), 2)
+	AssertError(t, errs, "TestPartial.SubSlice[0].Test", "TestPartial.SubSlice[0].Test", "Test", "Test", "required")
+	AssertError(t, errs, "TestPartial.SubSlice[1].Test", "TestPartial.SubSlice[1].Test", "Test", "Test", "required")
+
+	errs = validate.StructPartial(tPartial, p2...)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "TestPartial.SubSlice[0].Test", "TestPartial.SubSlice[0].Test", "Test", "Test", "required")
+
+	// reset struct in slice, and unset struct in slice in unset posistion
+	tPartial.SubSlice[0].Test = "Required"
+
+	// these will pass as the unset item is NOT tested
+	errs = validate.StructPartial(tPartial, p1...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructPartial(tPartial, p2...)
+	Equal(t, errs, nil)
+
+	// testing for missing item by exception, yes it dives and fails
+	errs = validate.StructExcept(tPartial, p1...)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "TestPartial.SubSlice[1].Test", "TestPartial.SubSlice[1].Test", "Test", "Test", "required")
+
+	errs = validate.StructExcept(tPartial, p2...)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.SubSlice[1].Test", "TestPartial.SubSlice[1].Test", "Test", "Test", "required")
+
+	tPartial.SubSlice[1].Test = "Required"
+
+	tPartial.Anonymous.SubAnonStruct[0].Test = ""
+	// these will pass as the unset item is NOT tested
+	errs = validate.StructPartial(tPartial, p1...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructPartial(tPartial, p2...)
+	Equal(t, errs, nil)
+
+	errs = validate.StructExcept(tPartial, p1...)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.Anonymous.SubAnonStruct[0].Test", "TestPartial.Anonymous.SubAnonStruct[0].Test", "Test", "Test", "required")
+
+	errs = validate.StructExcept(tPartial, p2...)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.Anonymous.SubAnonStruct[0].Test", "TestPartial.Anonymous.SubAnonStruct[0].Test", "Test", "Test", "required")
+
+}
+
+func TestCrossStructLteFieldValidation(t *testing.T) {
+
+	type Inner struct {
+		CreatedAt *time.Time
+		String    string
+		Int       int
+		Uint      uint
+		Float     float64
+		Array     []string
+	}
+
+	type Test struct {
+		Inner     *Inner
+		CreatedAt *time.Time `validate:"ltecsfield=Inner.CreatedAt"`
+		String    string     `validate:"ltecsfield=Inner.String"`
+		Int       int        `validate:"ltecsfield=Inner.Int"`
+		Uint      uint       `validate:"ltecsfield=Inner.Uint"`
+		Float     float64    `validate:"ltecsfield=Inner.Float"`
+		Array     []string   `validate:"ltecsfield=Inner.Array"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * 5)
+
+	inner := &Inner{
+		CreatedAt: &then,
+		String:    "abcd",
+		Int:       13,
+		Uint:      13,
+		Float:     1.13,
+		Array:     []string{"val1", "val2"},
+	}
+
+	test := &Test{
+		Inner:     inner,
+		CreatedAt: &now,
+		String:    "abc",
+		Int:       12,
+		Uint:      12,
+		Float:     1.12,
+		Array:     []string{"val1"},
+	}
+
+	validate := New()
+	errs := validate.Struct(test)
+	Equal(t, errs, nil)
+
+	test.CreatedAt = &then
+	test.String = "abcd"
+	test.Int = 13
+	test.Uint = 13
+	test.Float = 1.13
+	test.Array = []string{"val1", "val2"}
+
+	errs = validate.Struct(test)
+	Equal(t, errs, nil)
+
+	after := now.Add(time.Hour * 10)
+
+	test.CreatedAt = &after
+	test.String = "abce"
+	test.Int = 14
+	test.Uint = 14
+	test.Float = 1.14
+	test.Array = []string{"val1", "val2", "val3"}
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "ltecsfield")
+	AssertError(t, errs, "Test.String", "Test.String", "String", "String", "ltecsfield")
+	AssertError(t, errs, "Test.Int", "Test.Int", "Int", "Int", "ltecsfield")
+	AssertError(t, errs, "Test.Uint", "Test.Uint", "Uint", "Uint", "ltecsfield")
+	AssertError(t, errs, "Test.Float", "Test.Float", "Float", "Float", "ltecsfield")
+	AssertError(t, errs, "Test.Array", "Test.Array", "Array", "Array", "ltecsfield")
+
+	errs = validate.VarWithValueCtx(context.Background(), 1, "", "ltecsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltecsfield")
+
+	// this test is for the WARNING about unforseen validation issues.
+	errs = validate.VarWithValue(test, now, "ltecsfield")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 6)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "ltecsfield")
+	AssertError(t, errs, "Test.String", "Test.String", "String", "String", "ltecsfield")
+	AssertError(t, errs, "Test.Int", "Test.Int", "Int", "Int", "ltecsfield")
+	AssertError(t, errs, "Test.Uint", "Test.Uint", "Uint", "Uint", "ltecsfield")
+	AssertError(t, errs, "Test.Float", "Test.Float", "Float", "Float", "ltecsfield")
+	AssertError(t, errs, "Test.Array", "Test.Array", "Array", "Array", "ltecsfield")
+
+	type Other struct {
+		Value string
+	}
+
+	type Test2 struct {
+		Value Other
+		Time  time.Time `validate:"ltecsfield=Value"`
+	}
+
+	tst := Test2{
+		Value: Other{Value: "StringVal"},
+		Time:  then,
+	}
+
+	errs = validate.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test2.Time", "Test2.Time", "Time", "Time", "ltecsfield")
+}
+
+func TestCrossStructLtFieldValidation(t *testing.T) {
+
+	type Inner struct {
+		CreatedAt *time.Time
+		String    string
+		Int       int
+		Uint      uint
+		Float     float64
+		Array     []string
+	}
+
+	type Test struct {
+		Inner     *Inner
+		CreatedAt *time.Time `validate:"ltcsfield=Inner.CreatedAt"`
+		String    string     `validate:"ltcsfield=Inner.String"`
+		Int       int        `validate:"ltcsfield=Inner.Int"`
+		Uint      uint       `validate:"ltcsfield=Inner.Uint"`
+		Float     float64    `validate:"ltcsfield=Inner.Float"`
+		Array     []string   `validate:"ltcsfield=Inner.Array"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * 5)
+
+	inner := &Inner{
+		CreatedAt: &then,
+		String:    "abcd",
+		Int:       13,
+		Uint:      13,
+		Float:     1.13,
+		Array:     []string{"val1", "val2"},
+	}
+
+	test := &Test{
+		Inner:     inner,
+		CreatedAt: &now,
+		String:    "abc",
+		Int:       12,
+		Uint:      12,
+		Float:     1.12,
+		Array:     []string{"val1"},
+	}
+
+	validate := New()
+	errs := validate.Struct(test)
+	Equal(t, errs, nil)
+
+	test.CreatedAt = &then
+	test.String = "abcd"
+	test.Int = 13
+	test.Uint = 13
+	test.Float = 1.13
+	test.Array = []string{"val1", "val2"}
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "ltcsfield")
+	AssertError(t, errs, "Test.String", "Test.String", "String", "String", "ltcsfield")
+	AssertError(t, errs, "Test.Int", "Test.Int", "Int", "Int", "ltcsfield")
+	AssertError(t, errs, "Test.Uint", "Test.Uint", "Uint", "Uint", "ltcsfield")
+	AssertError(t, errs, "Test.Float", "Test.Float", "Float", "Float", "ltcsfield")
+	AssertError(t, errs, "Test.Array", "Test.Array", "Array", "Array", "ltcsfield")
+
+	errs = validate.VarWithValue(1, "", "ltcsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltcsfield")
+
+	// this test is for the WARNING about unforseen validation issues.
+	errs = validate.VarWithValue(test, now, "ltcsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "ltcsfield")
+	AssertError(t, errs, "Test.String", "Test.String", "String", "String", "ltcsfield")
+	AssertError(t, errs, "Test.Int", "Test.Int", "Int", "Int", "ltcsfield")
+	AssertError(t, errs, "Test.Uint", "Test.Uint", "Uint", "Uint", "ltcsfield")
+	AssertError(t, errs, "Test.Float", "Test.Float", "Float", "Float", "ltcsfield")
+	AssertError(t, errs, "Test.Array", "Test.Array", "Array", "Array", "ltcsfield")
+
+	type Other struct {
+		Value string
+	}
+
+	type Test2 struct {
+		Value Other
+		Time  time.Time `validate:"ltcsfield=Value"`
+	}
+
+	tst := Test2{
+		Value: Other{Value: "StringVal"},
+		Time:  then,
+	}
+
+	errs = validate.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test2.Time", "Test2.Time", "Time", "Time", "ltcsfield")
+}
+
+func TestCrossStructGteFieldValidation(t *testing.T) {
+
+	type Inner struct {
+		CreatedAt *time.Time
+		String    string
+		Int       int
+		Uint      uint
+		Float     float64
+		Array     []string
+	}
+
+	type Test struct {
+		Inner     *Inner
+		CreatedAt *time.Time `validate:"gtecsfield=Inner.CreatedAt"`
+		String    string     `validate:"gtecsfield=Inner.String"`
+		Int       int        `validate:"gtecsfield=Inner.Int"`
+		Uint      uint       `validate:"gtecsfield=Inner.Uint"`
+		Float     float64    `validate:"gtecsfield=Inner.Float"`
+		Array     []string   `validate:"gtecsfield=Inner.Array"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * -5)
+
+	inner := &Inner{
+		CreatedAt: &then,
+		String:    "abcd",
+		Int:       13,
+		Uint:      13,
+		Float:     1.13,
+		Array:     []string{"val1", "val2"},
+	}
+
+	test := &Test{
+		Inner:     inner,
+		CreatedAt: &now,
+		String:    "abcde",
+		Int:       14,
+		Uint:      14,
+		Float:     1.14,
+		Array:     []string{"val1", "val2", "val3"},
+	}
+
+	validate := New()
+	errs := validate.Struct(test)
+	Equal(t, errs, nil)
+
+	test.CreatedAt = &then
+	test.String = "abcd"
+	test.Int = 13
+	test.Uint = 13
+	test.Float = 1.13
+	test.Array = []string{"val1", "val2"}
+
+	errs = validate.Struct(test)
+	Equal(t, errs, nil)
+
+	before := now.Add(time.Hour * -10)
+
+	test.CreatedAt = &before
+	test.String = "abc"
+	test.Int = 12
+	test.Uint = 12
+	test.Float = 1.12
+	test.Array = []string{"val1"}
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "gtecsfield")
+	AssertError(t, errs, "Test.String", "Test.String", "String", "String", "gtecsfield")
+	AssertError(t, errs, "Test.Int", "Test.Int", "Int", "Int", "gtecsfield")
+	AssertError(t, errs, "Test.Uint", "Test.Uint", "Uint", "Uint", "gtecsfield")
+	AssertError(t, errs, "Test.Float", "Test.Float", "Float", "Float", "gtecsfield")
+	AssertError(t, errs, "Test.Array", "Test.Array", "Array", "Array", "gtecsfield")
+
+	errs = validate.VarWithValue(1, "", "gtecsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtecsfield")
+
+	// this test is for the WARNING about unforseen validation issues.
+	errs = validate.VarWithValue(test, now, "gtecsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "gtecsfield")
+	AssertError(t, errs, "Test.String", "Test.String", "String", "String", "gtecsfield")
+	AssertError(t, errs, "Test.Int", "Test.Int", "Int", "Int", "gtecsfield")
+	AssertError(t, errs, "Test.Uint", "Test.Uint", "Uint", "Uint", "gtecsfield")
+	AssertError(t, errs, "Test.Float", "Test.Float", "Float", "Float", "gtecsfield")
+	AssertError(t, errs, "Test.Array", "Test.Array", "Array", "Array", "gtecsfield")
+
+	type Other struct {
+		Value string
+	}
+
+	type Test2 struct {
+		Value Other
+		Time  time.Time `validate:"gtecsfield=Value"`
+	}
+
+	tst := Test2{
+		Value: Other{Value: "StringVal"},
+		Time:  then,
+	}
+
+	errs = validate.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test2.Time", "Test2.Time", "Time", "Time", "gtecsfield")
+}
+
+func TestCrossStructGtFieldValidation(t *testing.T) {
+
+	type Inner struct {
+		CreatedAt *time.Time
+		String    string
+		Int       int
+		Uint      uint
+		Float     float64
+		Array     []string
+	}
+
+	type Test struct {
+		Inner     *Inner
+		CreatedAt *time.Time `validate:"gtcsfield=Inner.CreatedAt"`
+		String    string     `validate:"gtcsfield=Inner.String"`
+		Int       int        `validate:"gtcsfield=Inner.Int"`
+		Uint      uint       `validate:"gtcsfield=Inner.Uint"`
+		Float     float64    `validate:"gtcsfield=Inner.Float"`
+		Array     []string   `validate:"gtcsfield=Inner.Array"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * -5)
+
+	inner := &Inner{
+		CreatedAt: &then,
+		String:    "abcd",
+		Int:       13,
+		Uint:      13,
+		Float:     1.13,
+		Array:     []string{"val1", "val2"},
+	}
+
+	test := &Test{
+		Inner:     inner,
+		CreatedAt: &now,
+		String:    "abcde",
+		Int:       14,
+		Uint:      14,
+		Float:     1.14,
+		Array:     []string{"val1", "val2", "val3"},
+	}
+
+	validate := New()
+	errs := validate.Struct(test)
+	Equal(t, errs, nil)
+
+	test.CreatedAt = &then
+	test.String = "abcd"
+	test.Int = 13
+	test.Uint = 13
+	test.Float = 1.13
+	test.Array = []string{"val1", "val2"}
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "gtcsfield")
+	AssertError(t, errs, "Test.String", "Test.String", "String", "String", "gtcsfield")
+	AssertError(t, errs, "Test.Int", "Test.Int", "Int", "Int", "gtcsfield")
+	AssertError(t, errs, "Test.Uint", "Test.Uint", "Uint", "Uint", "gtcsfield")
+	AssertError(t, errs, "Test.Float", "Test.Float", "Float", "Float", "gtcsfield")
+	AssertError(t, errs, "Test.Array", "Test.Array", "Array", "Array", "gtcsfield")
+
+	errs = validate.VarWithValue(1, "", "gtcsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtcsfield")
+
+	// this test is for the WARNING about unforseen validation issues.
+	errs = validate.VarWithValue(test, now, "gtcsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "gtcsfield")
+	AssertError(t, errs, "Test.String", "Test.String", "String", "String", "gtcsfield")
+	AssertError(t, errs, "Test.Int", "Test.Int", "Int", "Int", "gtcsfield")
+	AssertError(t, errs, "Test.Uint", "Test.Uint", "Uint", "Uint", "gtcsfield")
+	AssertError(t, errs, "Test.Float", "Test.Float", "Float", "Float", "gtcsfield")
+	AssertError(t, errs, "Test.Array", "Test.Array", "Array", "Array", "gtcsfield")
+
+	type Other struct {
+		Value string
+	}
+
+	type Test2 struct {
+		Value Other
+		Time  time.Time `validate:"gtcsfield=Value"`
+	}
+
+	tst := Test2{
+		Value: Other{Value: "StringVal"},
+		Time:  then,
+	}
+
+	errs = validate.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test2.Time", "Test2.Time", "Time", "Time", "gtcsfield")
+}
+
+func TestCrossStructNeFieldValidation(t *testing.T) {
+
+	type Inner struct {
+		CreatedAt *time.Time
+	}
+
+	type Test struct {
+		Inner     *Inner
+		CreatedAt *time.Time `validate:"necsfield=Inner.CreatedAt"`
+	}
+
+	now := time.Now().UTC()
+	then := now.Add(time.Hour * 5)
+
+	inner := &Inner{
+		CreatedAt: &then,
+	}
+
+	test := &Test{
+		Inner:     inner,
+		CreatedAt: &now,
+	}
+
+	validate := New()
+	errs := validate.Struct(test)
+	Equal(t, errs, nil)
+
+	test.CreatedAt = &then
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "necsfield")
+
+	var j uint64
+	var k float64
+	var j2 uint64
+	var k2 float64
+	s := "abcd"
+	i := 1
+	j = 1
+	k = 1.543
+	arr := []string{"test"}
+
+	s2 := "abcd"
+	i2 := 1
+	j2 = 1
+	k2 = 1.543
+	arr2 := []string{"test"}
+	arr3 := []string{"test", "test2"}
+	now2 := now
+
+	errs = validate.VarWithValue(s, s2, "necsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "necsfield")
+
+	errs = validate.VarWithValue(i2, i, "necsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "necsfield")
+
+	errs = validate.VarWithValue(j2, j, "necsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "necsfield")
+
+	errs = validate.VarWithValue(k2, k, "necsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "necsfield")
+
+	errs = validate.VarWithValue(arr2, arr, "necsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "necsfield")
+
+	errs = validate.VarWithValue(now2, now, "necsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "necsfield")
+
+	errs = validate.VarWithValue(arr3, arr, "necsfield")
+	Equal(t, errs, nil)
+
+	type SInner struct {
+		Name string
+	}
+
+	type TStruct struct {
+		Inner     *SInner
+		CreatedAt *time.Time `validate:"necsfield=Inner"`
+	}
+
+	sinner := &SInner{
+		Name: "NAME",
+	}
+
+	test2 := &TStruct{
+		Inner:     sinner,
+		CreatedAt: &now,
+	}
+
+	errs = validate.Struct(test2)
+	Equal(t, errs, nil)
+
+	test2.Inner = nil
+	errs = validate.Struct(test2)
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(nil, 1, "necsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "necsfield")
+}
+
+func TestCrossStructEqFieldValidation(t *testing.T) {
+
+	type Inner struct {
+		CreatedAt *time.Time
+	}
+
+	type Test struct {
+		Inner     *Inner
+		CreatedAt *time.Time `validate:"eqcsfield=Inner.CreatedAt"`
+	}
+
+	now := time.Now().UTC()
+
+	inner := &Inner{
+		CreatedAt: &now,
+	}
+
+	test := &Test{
+		Inner:     inner,
+		CreatedAt: &now,
+	}
+
+	validate := New()
+	errs := validate.Struct(test)
+	Equal(t, errs, nil)
+
+	newTime := time.Now().UTC()
+	test.CreatedAt = &newTime
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.CreatedAt", "Test.CreatedAt", "CreatedAt", "CreatedAt", "eqcsfield")
+
+	var j uint64
+	var k float64
+	s := "abcd"
+	i := 1
+	j = 1
+	k = 1.543
+	arr := []string{"test"}
+
+	var j2 uint64
+	var k2 float64
+	s2 := "abcd"
+	i2 := 1
+	j2 = 1
+	k2 = 1.543
+	arr2 := []string{"test"}
+	arr3 := []string{"test", "test2"}
+	now2 := now
+
+	errs = validate.VarWithValue(s, s2, "eqcsfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(i2, i, "eqcsfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(j2, j, "eqcsfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(k2, k, "eqcsfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(arr2, arr, "eqcsfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(now2, now, "eqcsfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(arr3, arr, "eqcsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "eqcsfield")
+
+	type SInner struct {
+		Name string
+	}
+
+	type TStruct struct {
+		Inner     *SInner
+		CreatedAt *time.Time `validate:"eqcsfield=Inner"`
+	}
+
+	sinner := &SInner{
+		Name: "NAME",
+	}
+
+	test2 := &TStruct{
+		Inner:     sinner,
+		CreatedAt: &now,
+	}
+
+	errs = validate.Struct(test2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TStruct.CreatedAt", "TStruct.CreatedAt", "CreatedAt", "CreatedAt", "eqcsfield")
+
+	test2.Inner = nil
+	errs = validate.Struct(test2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TStruct.CreatedAt", "TStruct.CreatedAt", "CreatedAt", "CreatedAt", "eqcsfield")
+
+	errs = validate.VarWithValue(nil, 1, "eqcsfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "eqcsfield")
+}
+
+func TestCrossNamespaceFieldValidation(t *testing.T) {
+
+	type SliceStruct struct {
+		Name string
+	}
+
+	type MapStruct struct {
+		Name string
+	}
+
+	type Inner struct {
+		CreatedAt        *time.Time
+		Slice            []string
+		SliceStructs     []*SliceStruct
+		SliceSlice       [][]string
+		SliceSliceStruct [][]*SliceStruct
+		SliceMap         []map[string]string
+		Map              map[string]string
+		MapMap           map[string]map[string]string
+		MapStructs       map[string]*SliceStruct
+		MapMapStruct     map[string]map[string]*SliceStruct
+		MapSlice         map[string][]string
+		MapInt           map[int]string
+		MapInt8          map[int8]string
+		MapInt16         map[int16]string
+		MapInt32         map[int32]string
+		MapInt64         map[int64]string
+		MapUint          map[uint]string
+		MapUint8         map[uint8]string
+		MapUint16        map[uint16]string
+		MapUint32        map[uint32]string
+		MapUint64        map[uint64]string
+		MapFloat32       map[float32]string
+		MapFloat64       map[float64]string
+		MapBool          map[bool]string
+	}
+
+	type Test struct {
+		Inner     *Inner
+		CreatedAt *time.Time
+	}
+
+	now := time.Now()
+
+	inner := &Inner{
+		CreatedAt:        &now,
+		Slice:            []string{"val1", "val2", "val3"},
+		SliceStructs:     []*SliceStruct{{Name: "name1"}, {Name: "name2"}, {Name: "name3"}},
+		SliceSlice:       [][]string{{"1", "2", "3"}, {"4", "5", "6"}, {"7", "8", "9"}},
+		SliceSliceStruct: [][]*SliceStruct{{{Name: "name1"}, {Name: "name2"}, {Name: "name3"}}, {{Name: "name4"}, {Name: "name5"}, {Name: "name6"}}, {{Name: "name7"}, {Name: "name8"}, {Name: "name9"}}},
+		SliceMap:         []map[string]string{{"key1": "val1", "key2": "val2", "key3": "val3"}, {"key4": "val4", "key5": "val5", "key6": "val6"}},
+		Map:              map[string]string{"key1": "val1", "key2": "val2", "key3": "val3"},
+		MapStructs:       map[string]*SliceStruct{"key1": {Name: "name1"}, "key2": {Name: "name2"}, "key3": {Name: "name3"}},
+		MapMap:           map[string]map[string]string{"key1": {"key1-1": "val1"}, "key2": {"key2-1": "val2"}, "key3": {"key3-1": "val3"}},
+		MapMapStruct:     map[string]map[string]*SliceStruct{"key1": {"key1-1": {Name: "name1"}}, "key2": {"key2-1": {Name: "name2"}}, "key3": {"key3-1": {Name: "name3"}}},
+		MapSlice:         map[string][]string{"key1": {"1", "2", "3"}, "key2": {"4", "5", "6"}, "key3": {"7", "8", "9"}},
+		MapInt:           map[int]string{1: "val1", 2: "val2", 3: "val3"},
+		MapInt8:          map[int8]string{1: "val1", 2: "val2", 3: "val3"},
+		MapInt16:         map[int16]string{1: "val1", 2: "val2", 3: "val3"},
+		MapInt32:         map[int32]string{1: "val1", 2: "val2", 3: "val3"},
+		MapInt64:         map[int64]string{1: "val1", 2: "val2", 3: "val3"},
+		MapUint:          map[uint]string{1: "val1", 2: "val2", 3: "val3"},
+		MapUint8:         map[uint8]string{1: "val1", 2: "val2", 3: "val3"},
+		MapUint16:        map[uint16]string{1: "val1", 2: "val2", 3: "val3"},
+		MapUint32:        map[uint32]string{1: "val1", 2: "val2", 3: "val3"},
+		MapUint64:        map[uint64]string{1: "val1", 2: "val2", 3: "val3"},
+		MapFloat32:       map[float32]string{1.01: "val1", 2.02: "val2", 3.03: "val3"},
+		MapFloat64:       map[float64]string{1.01: "val1", 2.02: "val2", 3.03: "val3"},
+		MapBool:          map[bool]string{true: "val1", false: "val2"},
+	}
+
+	test := &Test{
+		Inner:     inner,
+		CreatedAt: &now,
+	}
+
+	val := reflect.ValueOf(test)
+
+	vd := New()
+	v := &validate{
+		v: vd,
+	}
+
+	current, kind, ok := v.getStructFieldOKInternal(val, "Inner.CreatedAt")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.Struct)
+	tm, ok := current.Interface().(time.Time)
+	Equal(t, ok, true)
+	Equal(t, tm, now)
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.Slice[1]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.CrazyNonExistantField")
+	Equal(t, ok, false)
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.Slice[101]")
+	Equal(t, ok, false)
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.Map[key3]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val3")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapMap[key2][key2-1]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapStructs[key2].Name")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "name2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapMapStruct[key3][key3-1].Name")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "name3")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.SliceSlice[2][0]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "7")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.SliceSliceStruct[2][1].Name")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "name8")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.SliceMap[1][key5]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val5")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapSlice[key3][2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "9")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapInt[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapInt8[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapInt16[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapInt32[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapInt64[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapUint[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapUint8[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapUint16[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapUint32[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapUint64[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapFloat32[3.03]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val3")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapFloat64[2.02]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val2")
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.MapBool[true]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.String)
+	Equal(t, current.String(), "val1")
+
+	inner = &Inner{
+		CreatedAt:        &now,
+		Slice:            []string{"val1", "val2", "val3"},
+		SliceStructs:     []*SliceStruct{{Name: "name1"}, {Name: "name2"}, nil},
+		SliceSlice:       [][]string{{"1", "2", "3"}, {"4", "5", "6"}, {"7", "8", "9"}},
+		SliceSliceStruct: [][]*SliceStruct{{{Name: "name1"}, {Name: "name2"}, {Name: "name3"}}, {{Name: "name4"}, {Name: "name5"}, {Name: "name6"}}, {{Name: "name7"}, {Name: "name8"}, {Name: "name9"}}},
+		SliceMap:         []map[string]string{{"key1": "val1", "key2": "val2", "key3": "val3"}, {"key4": "val4", "key5": "val5", "key6": "val6"}},
+		Map:              map[string]string{"key1": "val1", "key2": "val2", "key3": "val3"},
+		MapStructs:       map[string]*SliceStruct{"key1": {Name: "name1"}, "key2": {Name: "name2"}, "key3": {Name: "name3"}},
+		MapMap:           map[string]map[string]string{"key1": {"key1-1": "val1"}, "key2": {"key2-1": "val2"}, "key3": {"key3-1": "val3"}},
+		MapMapStruct:     map[string]map[string]*SliceStruct{"key1": {"key1-1": {Name: "name1"}}, "key2": {"key2-1": {Name: "name2"}}, "key3": {"key3-1": {Name: "name3"}}},
+		MapSlice:         map[string][]string{"key1": {"1", "2", "3"}, "key2": {"4", "5", "6"}, "key3": {"7", "8", "9"}},
+	}
+
+	test = &Test{
+		Inner:     inner,
+		CreatedAt: nil,
+	}
+
+	val = reflect.ValueOf(test)
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.SliceStructs[2]")
+	Equal(t, ok, true)
+	Equal(t, kind, reflect.Ptr)
+	Equal(t, current.String(), "<*validator.SliceStruct Value>")
+	Equal(t, current.IsNil(), true)
+
+	current, kind, ok = v.getStructFieldOKInternal(val, "Inner.SliceStructs[2].Name")
+	Equal(t, ok, false)
+	Equal(t, kind, reflect.Ptr)
+	Equal(t, current.String(), "<*validator.SliceStruct Value>")
+	Equal(t, current.IsNil(), true)
+
+	PanicMatches(t, func() { v.getStructFieldOKInternal(reflect.ValueOf(1), "crazyinput") }, "Invalid field namespace")
+}
+
+func TestExistsValidation(t *testing.T) {
+
+	jsonText := "{ \"truthiness2\": true }"
+
+	type Thing struct {
+		Truthiness *bool `json:"truthiness" validate:"required"`
+	}
+
+	var ting Thing
+
+	err := json.Unmarshal([]byte(jsonText), &ting)
+	Equal(t, err, nil)
+	NotEqual(t, ting, nil)
+	Equal(t, ting.Truthiness, nil)
+
+	validate := New()
+	errs := validate.Struct(ting)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Thing.Truthiness", "Thing.Truthiness", "Truthiness", "Truthiness", "required")
+
+	jsonText = "{ \"truthiness\": true }"
+
+	err = json.Unmarshal([]byte(jsonText), &ting)
+	Equal(t, err, nil)
+	NotEqual(t, ting, nil)
+	Equal(t, ting.Truthiness, true)
+
+	errs = validate.Struct(ting)
+	Equal(t, errs, nil)
+}
+
+func TestSQLValue2Validation(t *testing.T) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, valuer{}, (*driver.Valuer)(nil), sql.NullString{}, sql.NullInt64{}, sql.NullBool{}, sql.NullFloat64{})
+	validate.RegisterCustomTypeFunc(ValidateCustomType, MadeUpCustomType{})
+	validate.RegisterCustomTypeFunc(OverrideIntTypeForSomeReason, 1)
+
+	val := valuer{
+		Name: "",
+	}
+
+	errs := validate.Var(val, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	val.Name = "Valid Name"
+	errs = validate.VarCtx(context.Background(), val, "required")
+	Equal(t, errs, nil)
+
+	val.Name = "errorme"
+
+	PanicMatches(t, func() { validate.Var(val, "required") }, "SQL Driver Valuer error: some kind of error")
+
+	type myValuer valuer
+
+	myVal := valuer{
+		Name: "",
+	}
+
+	errs = validate.Var(myVal, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	cust := MadeUpCustomType{
+		FirstName: "Joey",
+		LastName:  "Bloggs",
+	}
+
+	c := CustomMadeUpStruct{MadeUp: cust, OverriddenInt: 2}
+
+	errs = validate.Struct(c)
+	Equal(t, errs, nil)
+
+	c.MadeUp.FirstName = ""
+	c.OverriddenInt = 1
+
+	errs = validate.Struct(c)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 2)
+	AssertError(t, errs, "CustomMadeUpStruct.MadeUp", "CustomMadeUpStruct.MadeUp", "MadeUp", "MadeUp", "required")
+	AssertError(t, errs, "CustomMadeUpStruct.OverriddenInt", "CustomMadeUpStruct.OverriddenInt", "OverriddenInt", "OverriddenInt", "gt")
+}
+
+func TestSQLValueValidation(t *testing.T) {
+
+	validate := New()
+	validate.RegisterCustomTypeFunc(ValidateValuerType, (*driver.Valuer)(nil), valuer{})
+	validate.RegisterCustomTypeFunc(ValidateCustomType, MadeUpCustomType{})
+	validate.RegisterCustomTypeFunc(OverrideIntTypeForSomeReason, 1)
+
+	val := valuer{
+		Name: "",
+	}
+
+	errs := validate.Var(val, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	val.Name = "Valid Name"
+	errs = validate.Var(val, "required")
+	Equal(t, errs, nil)
+
+	val.Name = "errorme"
+
+	PanicMatches(t, func() { errs = validate.Var(val, "required") }, "SQL Driver Valuer error: some kind of error")
+
+	type myValuer valuer
+
+	myVal := valuer{
+		Name: "",
+	}
+
+	errs = validate.Var(myVal, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	cust := MadeUpCustomType{
+		FirstName: "Joey",
+		LastName:  "Bloggs",
+	}
+
+	c := CustomMadeUpStruct{MadeUp: cust, OverriddenInt: 2}
+
+	errs = validate.Struct(c)
+	Equal(t, errs, nil)
+
+	c.MadeUp.FirstName = ""
+	c.OverriddenInt = 1
+
+	errs = validate.Struct(c)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 2)
+	AssertError(t, errs, "CustomMadeUpStruct.MadeUp", "CustomMadeUpStruct.MadeUp", "MadeUp", "MadeUp", "required")
+	AssertError(t, errs, "CustomMadeUpStruct.OverriddenInt", "CustomMadeUpStruct.OverriddenInt", "OverriddenInt", "OverriddenInt", "gt")
+}
+
+func TestMACValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"3D:F2:C9:A6:B3:4F", true},
+		{"3D-F2-C9-A6-B3:4F", false},
+		{"123", false},
+		{"", false},
+		{"abacaba", false},
+		{"00:25:96:FF:FE:12:34:56", true},
+		{"0025:96FF:FE12:3456", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "mac")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d mac failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d mac failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "mac" {
+					t.Fatalf("Index: %d mac failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestIPValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"10.0.0.1", true},
+		{"172.16.0.1", true},
+		{"192.168.0.1", true},
+		{"192.168.255.254", true},
+		{"192.168.255.256", false},
+		{"172.16.255.254", true},
+		{"172.16.256.255", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652", true},
+		{"2001:cdba:0:0:0:0:3257:9652", true},
+		{"2001:cdba::3257:9652", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "ip")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ip failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ip failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "ip" {
+					t.Fatalf("Index: %d ip failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestIPv6Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"10.0.0.1", false},
+		{"172.16.0.1", false},
+		{"192.168.0.1", false},
+		{"192.168.255.254", false},
+		{"192.168.255.256", false},
+		{"172.16.255.254", false},
+		{"172.16.256.255", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652", true},
+		{"2001:cdba:0:0:0:0:3257:9652", true},
+		{"2001:cdba::3257:9652", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "ipv6")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ipv6 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ipv6 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "ipv6" {
+					t.Fatalf("Index: %d ipv6 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestIPv4Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"10.0.0.1", true},
+		{"172.16.0.1", true},
+		{"192.168.0.1", true},
+		{"192.168.255.254", true},
+		{"192.168.255.256", false},
+		{"172.16.255.254", true},
+		{"172.16.256.255", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652", false},
+		{"2001:cdba:0:0:0:0:3257:9652", false},
+		{"2001:cdba::3257:9652", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "ipv4")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ipv4 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ipv4 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "ipv4" {
+					t.Fatalf("Index: %d ipv4 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestCIDRValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"10.0.0.0/0", true},
+		{"10.0.0.1/8", true},
+		{"172.16.0.1/16", true},
+		{"192.168.0.1/24", true},
+		{"192.168.255.254/24", true},
+		{"192.168.255.254/48", false},
+		{"192.168.255.256/24", false},
+		{"172.16.255.254/16", true},
+		{"172.16.256.255/16", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652/64", true},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652/256", false},
+		{"2001:cdba:0:0:0:0:3257:9652/32", true},
+		{"2001:cdba::3257:9652/16", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "cidr")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d cidr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d cidr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "cidr" {
+					t.Fatalf("Index: %d cidr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestCIDRv6Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"10.0.0.0/0", false},
+		{"10.0.0.1/8", false},
+		{"172.16.0.1/16", false},
+		{"192.168.0.1/24", false},
+		{"192.168.255.254/24", false},
+		{"192.168.255.254/48", false},
+		{"192.168.255.256/24", false},
+		{"172.16.255.254/16", false},
+		{"172.16.256.255/16", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652/64", true},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652/256", false},
+		{"2001:cdba:0:0:0:0:3257:9652/32", true},
+		{"2001:cdba::3257:9652/16", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "cidrv6")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d cidrv6 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d cidrv6 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "cidrv6" {
+					t.Fatalf("Index: %d cidrv6 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestCIDRv4Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"10.0.0.0/0", true},
+		{"10.0.0.1/8", true},
+		{"172.16.0.1/16", true},
+		{"192.168.0.1/24", true},
+		{"192.168.255.254/24", true},
+		{"192.168.255.254/48", false},
+		{"192.168.255.256/24", false},
+		{"172.16.255.254/16", true},
+		{"172.16.256.255/16", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652/64", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652/256", false},
+		{"2001:cdba:0:0:0:0:3257:9652/32", false},
+		{"2001:cdba::3257:9652/16", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "cidrv4")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d cidrv4 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d cidrv4 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "cidrv4" {
+					t.Fatalf("Index: %d cidrv4 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestTCPAddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{":80", false},
+		{"127.0.0.1:80", true},
+		{"[::1]:80", true},
+		{"256.0.0.0:1", false},
+		{"[::1]", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "tcp_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d tcp_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d tcp_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "tcp_addr" {
+					t.Fatalf("Index: %d tcp_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestTCP6AddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{":80", false},
+		{"127.0.0.1:80", false},
+		{"[::1]:80", true},
+		{"256.0.0.0:1", false},
+		{"[::1]", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "tcp6_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d tcp6_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d tcp6_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "tcp6_addr" {
+					t.Fatalf("Index: %d tcp6_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestTCP4AddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{":80", false},
+		{"127.0.0.1:80", true},
+		{"[::1]:80", false}, // https://github.com/golang/go/issues/14037
+		{"256.0.0.0:1", false},
+		{"[::1]", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "tcp4_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d tcp4_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Log(test.param, IsEqual(errs, nil))
+				t.Fatalf("Index: %d tcp4_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "tcp4_addr" {
+					t.Fatalf("Index: %d tcp4_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestUDPAddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{":80", false},
+		{"127.0.0.1:80", true},
+		{"[::1]:80", true},
+		{"256.0.0.0:1", false},
+		{"[::1]", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "udp_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d udp_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d udp_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "udp_addr" {
+					t.Fatalf("Index: %d udp_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestUDP6AddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{":80", false},
+		{"127.0.0.1:80", false},
+		{"[::1]:80", true},
+		{"256.0.0.0:1", false},
+		{"[::1]", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "udp6_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d udp6_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d udp6_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "udp6_addr" {
+					t.Fatalf("Index: %d udp6_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestUDP4AddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{":80", false},
+		{"127.0.0.1:80", true},
+		{"[::1]:80", false}, // https://github.com/golang/go/issues/14037
+		{"256.0.0.0:1", false},
+		{"[::1]", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "udp4_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d udp4_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Log(test.param, IsEqual(errs, nil))
+				t.Fatalf("Index: %d udp4_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "udp4_addr" {
+					t.Fatalf("Index: %d udp4_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestIPAddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"127.0.0.1", true},
+		{"127.0.0.1:80", false},
+		{"::1", true},
+		{"256.0.0.0", false},
+		{"localhost", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "ip_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ip_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ip_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "ip_addr" {
+					t.Fatalf("Index: %d ip_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestIP6AddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"127.0.0.1", false}, // https://github.com/golang/go/issues/14037
+		{"127.0.0.1:80", false},
+		{"::1", true},
+		{"0:0:0:0:0:0:0:1", true},
+		{"256.0.0.0", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "ip6_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ip6_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ip6_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "ip6_addr" {
+					t.Fatalf("Index: %d ip6_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestIP4AddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"127.0.0.1", true},
+		{"127.0.0.1:80", false},
+		{"::1", false}, // https://github.com/golang/go/issues/14037
+		{"256.0.0.0", false},
+		{"localhost", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "ip4_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ip4_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Log(test.param, IsEqual(errs, nil))
+				t.Fatalf("Index: %d ip4_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "ip4_addr" {
+					t.Fatalf("Index: %d ip4_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestUnixAddrValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", true},
+		{"v.sock", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+		errs := validate.Var(test.param, "unix_addr")
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d unix_addr failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Log(test.param, IsEqual(errs, nil))
+				t.Fatalf("Index: %d unix_addr failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "unix_addr" {
+					t.Fatalf("Index: %d unix_addr failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestSliceMapArrayChanFuncPtrInterfaceRequiredValidation(t *testing.T) {
+
+	validate := New()
+
+	var m map[string]string
+
+	errs := validate.Var(m, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	m = map[string]string{}
+	errs = validate.Var(m, "required")
+	Equal(t, errs, nil)
+
+	var arr [5]string
+	errs = validate.Var(arr, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	arr[0] = "ok"
+	errs = validate.Var(arr, "required")
+	Equal(t, errs, nil)
+
+	var s []string
+	errs = validate.Var(s, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	s = []string{}
+	errs = validate.Var(s, "required")
+	Equal(t, errs, nil)
+
+	var c chan string
+	errs = validate.Var(c, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	c = make(chan string)
+	errs = validate.Var(c, "required")
+	Equal(t, errs, nil)
+
+	var tst *int
+	errs = validate.Var(tst, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	one := 1
+	tst = &one
+	errs = validate.Var(tst, "required")
+	Equal(t, errs, nil)
+
+	var iface interface{}
+
+	errs = validate.Var(iface, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	errs = validate.Var(iface, "omitempty,required")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(iface, "")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(nil, iface, "")
+	Equal(t, errs, nil)
+
+	var f func(string)
+
+	errs = validate.Var(f, "required")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "required")
+
+	f = func(name string) {}
+
+	errs = validate.Var(f, "required")
+	Equal(t, errs, nil)
+}
+
+func TestDatePtrValidationIssueValidation(t *testing.T) {
+
+	type Test struct {
+		LastViewed *time.Time
+		Reminder   *time.Time
+	}
+
+	test := &Test{}
+
+	validate := New()
+	errs := validate.Struct(test)
+	Equal(t, errs, nil)
+}
+
+func TestCommaAndPipeObfuscationValidation(t *testing.T) {
+	s := "My Name Is, |joeybloggs|"
+
+	validate := New()
+
+	errs := validate.Var(s, "excludesall=0x2C")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "excludesall")
+
+	errs = validate.Var(s, "excludesall=0x7C")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "excludesall")
+}
+
+func TestBadKeyValidation(t *testing.T) {
+	type Test struct {
+		Name string `validate:"required, "`
+	}
+
+	tst := &Test{
+		Name: "test",
+	}
+
+	validate := New()
+
+	PanicMatches(t, func() { validate.Struct(tst) }, "Undefined validation function ' ' on field 'Name'")
+
+	type Test2 struct {
+		Name string `validate:"required,,len=2"`
+	}
+
+	tst2 := &Test2{
+		Name: "test",
+	}
+
+	PanicMatches(t, func() { validate.Struct(tst2) }, "Invalid validation tag on field 'Name'")
+}
+
+func TestInterfaceErrValidation(t *testing.T) {
+
+	var v1 interface{}
+	var v2 interface{}
+
+	v2 = 1
+	v1 = v2
+
+	validate := New()
+	errs := validate.Var(v1, "len=1")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(v2, "len=1")
+	Equal(t, errs, nil)
+
+	type ExternalCMD struct {
+		Userid string      `json:"userid"`
+		Action uint32      `json:"action"`
+		Data   interface{} `json:"data,omitempty" validate:"required"`
+	}
+
+	s := &ExternalCMD{
+		Userid: "123456",
+		Action: 10000,
+		// Data:   1,
+	}
+
+	errs = validate.Struct(s)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "ExternalCMD.Data", "ExternalCMD.Data", "Data", "Data", "required")
+
+	type ExternalCMD2 struct {
+		Userid string      `json:"userid"`
+		Action uint32      `json:"action"`
+		Data   interface{} `json:"data,omitempty" validate:"len=1"`
+	}
+
+	s2 := &ExternalCMD2{
+		Userid: "123456",
+		Action: 10000,
+		// Data:   1,
+	}
+
+	errs = validate.Struct(s2)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "ExternalCMD2.Data", "ExternalCMD2.Data", "Data", "Data", "len")
+
+	s3 := &ExternalCMD2{
+		Userid: "123456",
+		Action: 10000,
+		Data:   2,
+	}
+
+	errs = validate.Struct(s3)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "ExternalCMD2.Data", "ExternalCMD2.Data", "Data", "Data", "len")
+
+	type Inner struct {
+		Name string `validate:"required"`
+	}
+
+	inner := &Inner{
+		Name: "",
+	}
+
+	s4 := &ExternalCMD{
+		Userid: "123456",
+		Action: 10000,
+		Data:   inner,
+	}
+
+	errs = validate.Struct(s4)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "ExternalCMD.Data.Name", "ExternalCMD.Data.Name", "Name", "Name", "required")
+
+	type TestMapStructPtr struct {
+		Errs map[int]interface{} `validate:"gt=0,dive,len=2"`
+	}
+
+	mip := map[int]interface{}{0: &Inner{"ok"}, 3: nil, 4: &Inner{"ok"}}
+
+	msp := &TestMapStructPtr{
+		Errs: mip,
+	}
+
+	errs = validate.Struct(msp)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "TestMapStructPtr.Errs[3]", "TestMapStructPtr.Errs[3]", "Errs[3]", "Errs[3]", "len")
+
+	type TestMultiDimensionalStructs struct {
+		Errs [][]interface{} `validate:"gt=0,dive,dive"`
+	}
+
+	var errStructArray [][]interface{}
+
+	errStructArray = append(errStructArray, []interface{}{&Inner{"ok"}, &Inner{""}, &Inner{""}})
+	errStructArray = append(errStructArray, []interface{}{&Inner{"ok"}, &Inner{""}, &Inner{""}})
+
+	tms := &TestMultiDimensionalStructs{
+		Errs: errStructArray,
+	}
+
+	errs = validate.Struct(tms)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 4)
+	AssertError(t, errs, "TestMultiDimensionalStructs.Errs[0][1].Name", "TestMultiDimensionalStructs.Errs[0][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructs.Errs[0][2].Name", "TestMultiDimensionalStructs.Errs[0][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructs.Errs[1][1].Name", "TestMultiDimensionalStructs.Errs[1][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructs.Errs[1][2].Name", "TestMultiDimensionalStructs.Errs[1][2].Name", "Name", "Name", "required")
+
+	type TestMultiDimensionalStructsPtr2 struct {
+		Errs [][]*Inner `validate:"gt=0,dive,dive,required"`
+	}
+
+	var errStructPtr2Array [][]*Inner
+
+	errStructPtr2Array = append(errStructPtr2Array, []*Inner{{"ok"}, {""}, {""}})
+	errStructPtr2Array = append(errStructPtr2Array, []*Inner{{"ok"}, {""}, {""}})
+	errStructPtr2Array = append(errStructPtr2Array, []*Inner{{"ok"}, {""}, nil})
+
+	tmsp2 := &TestMultiDimensionalStructsPtr2{
+		Errs: errStructPtr2Array,
+	}
+
+	errs = validate.Struct(tmsp2)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 6)
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[0][1].Name", "TestMultiDimensionalStructsPtr2.Errs[0][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[0][2].Name", "TestMultiDimensionalStructsPtr2.Errs[0][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[1][1].Name", "TestMultiDimensionalStructsPtr2.Errs[1][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[1][2].Name", "TestMultiDimensionalStructsPtr2.Errs[1][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[2][1].Name", "TestMultiDimensionalStructsPtr2.Errs[2][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[2][2]", "TestMultiDimensionalStructsPtr2.Errs[2][2]", "Errs[2][2]", "Errs[2][2]", "required")
+
+	m := map[int]interface{}{0: "ok", 3: "", 4: "ok"}
+
+	errs = validate.Var(m, "len=3,dive,len=2")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "[3]", "[3]", "[3]", "[3]", "len")
+
+	errs = validate.Var(m, "len=2,dive,required")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "", "", "", "", "len")
+
+	arr := []interface{}{"ok", "", "ok"}
+
+	errs = validate.Var(arr, "len=3,dive,len=2")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "[1]", "[1]", "[1]", "[1]", "len")
+
+	errs = validate.Var(arr, "len=2,dive,required")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "", "", "", "", "len")
+
+	type MyStruct struct {
+		A, B string
+		C    interface{}
+	}
+
+	var a MyStruct
+
+	a.A = "value"
+	a.C = "nu"
+
+	errs = validate.Struct(a)
+	Equal(t, errs, nil)
+}
+
+func TestMapDiveValidation(t *testing.T) {
+
+	validate := New()
+
+	n := map[int]interface{}{0: nil}
+	errs := validate.Var(n, "omitempty,required")
+	Equal(t, errs, nil)
+
+	m := map[int]string{0: "ok", 3: "", 4: "ok"}
+
+	errs = validate.Var(m, "len=3,dive,required")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "[3]", "[3]", "[3]", "[3]", "required")
+
+	errs = validate.Var(m, "len=2,dive,required")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "", "", "", "", "len")
+
+	type Inner struct {
+		Name string `validate:"required"`
+	}
+
+	type TestMapStruct struct {
+		Errs map[int]Inner `validate:"gt=0,dive"`
+	}
+
+	mi := map[int]Inner{0: {"ok"}, 3: {""}, 4: {"ok"}}
+
+	ms := &TestMapStruct{
+		Errs: mi,
+	}
+
+	errs = validate.Struct(ms)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "TestMapStruct.Errs[3].Name", "TestMapStruct.Errs[3].Name", "Name", "Name", "required")
+
+	// for full test coverage
+	s := fmt.Sprint(errs.Error())
+	NotEqual(t, s, "")
+
+	type TestMapTimeStruct struct {
+		Errs map[int]*time.Time `validate:"gt=0,dive,required"`
+	}
+
+	t1 := time.Now().UTC()
+
+	mta := map[int]*time.Time{0: &t1, 3: nil, 4: nil}
+
+	mt := &TestMapTimeStruct{
+		Errs: mta,
+	}
+
+	errs = validate.Struct(mt)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 2)
+	AssertError(t, errs, "TestMapTimeStruct.Errs[3]", "TestMapTimeStruct.Errs[3]", "Errs[3]", "Errs[3]", "required")
+	AssertError(t, errs, "TestMapTimeStruct.Errs[4]", "TestMapTimeStruct.Errs[4]", "Errs[4]", "Errs[4]", "required")
+
+	type TestMapStructPtr struct {
+		Errs map[int]*Inner `validate:"gt=0,dive,required"`
+	}
+
+	mip := map[int]*Inner{0: {"ok"}, 3: nil, 4: {"ok"}}
+
+	msp := &TestMapStructPtr{
+		Errs: mip,
+	}
+
+	errs = validate.Struct(msp)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "TestMapStructPtr.Errs[3]", "TestMapStructPtr.Errs[3]", "Errs[3]", "Errs[3]", "required")
+
+	type TestMapStructPtr2 struct {
+		Errs map[int]*Inner `validate:"gt=0,dive,omitempty,required"`
+	}
+
+	mip2 := map[int]*Inner{0: {"ok"}, 3: nil, 4: {"ok"}}
+
+	msp2 := &TestMapStructPtr2{
+		Errs: mip2,
+	}
+
+	errs = validate.Struct(msp2)
+	Equal(t, errs, nil)
+
+	v2 := New()
+	v2.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type MapDiveJSONTest struct {
+		Map map[string]string `validate:"required,gte=1,dive,gte=1" json:"MyName"`
+	}
+
+	mdjt := &MapDiveJSONTest{
+		Map: map[string]string{
+			"Key1": "Value1",
+			"Key2": "",
+		},
+	}
+
+	err := v2.Struct(mdjt)
+	NotEqual(t, err, nil)
+
+	errs = err.(ValidationErrors)
+	fe := getError(errs, "MapDiveJSONTest.MyName[Key2]", "MapDiveJSONTest.Map[Key2]")
+	NotEqual(t, fe, nil)
+	Equal(t, fe.Tag(), "gte")
+	Equal(t, fe.ActualTag(), "gte")
+	Equal(t, fe.Field(), "MyName[Key2]")
+	Equal(t, fe.StructField(), "Map[Key2]")
+}
+
+func TestArrayDiveValidation(t *testing.T) {
+
+	validate := New()
+
+	arr := []string{"ok", "", "ok"}
+
+	errs := validate.Var(arr, "len=3,dive,required")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "[1]", "[1]", "[1]", "[1]", "required")
+
+	errs = validate.Var(arr, "len=2,dive,required")
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "", "", "", "", "len")
+
+	type BadDive struct {
+		Name string `validate:"dive"`
+	}
+
+	bd := &BadDive{
+		Name: "TEST",
+	}
+
+	PanicMatches(t, func() { validate.Struct(bd) }, "dive error! can't dive on a non slice or map")
+
+	type Test struct {
+		Errs []string `validate:"gt=0,dive,required"`
+	}
+
+	test := &Test{
+		Errs: []string{"ok", "", "ok"},
+	}
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "Test.Errs[1]", "Test.Errs[1]", "Errs[1]", "Errs[1]", "required")
+
+	test = &Test{
+		Errs: []string{"ok", "ok", ""},
+	}
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "Test.Errs[2]", "Test.Errs[2]", "Errs[2]", "Errs[2]", "required")
+
+	type TestMultiDimensional struct {
+		Errs [][]string `validate:"gt=0,dive,dive,required"`
+	}
+
+	var errArray [][]string
+
+	errArray = append(errArray, []string{"ok", "", ""})
+	errArray = append(errArray, []string{"ok", "", ""})
+
+	tm := &TestMultiDimensional{
+		Errs: errArray,
+	}
+
+	errs = validate.Struct(tm)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 4)
+	AssertError(t, errs, "TestMultiDimensional.Errs[0][1]", "TestMultiDimensional.Errs[0][1]", "Errs[0][1]", "Errs[0][1]", "required")
+	AssertError(t, errs, "TestMultiDimensional.Errs[0][2]", "TestMultiDimensional.Errs[0][2]", "Errs[0][2]", "Errs[0][2]", "required")
+	AssertError(t, errs, "TestMultiDimensional.Errs[1][1]", "TestMultiDimensional.Errs[1][1]", "Errs[1][1]", "Errs[1][1]", "required")
+	AssertError(t, errs, "TestMultiDimensional.Errs[1][2]", "TestMultiDimensional.Errs[1][2]", "Errs[1][2]", "Errs[1][2]", "required")
+
+	type Inner struct {
+		Name string `validate:"required"`
+	}
+
+	type TestMultiDimensionalStructs struct {
+		Errs [][]Inner `validate:"gt=0,dive,dive"`
+	}
+
+	var errStructArray [][]Inner
+
+	errStructArray = append(errStructArray, []Inner{{"ok"}, {""}, {""}})
+	errStructArray = append(errStructArray, []Inner{{"ok"}, {""}, {""}})
+
+	tms := &TestMultiDimensionalStructs{
+		Errs: errStructArray,
+	}
+
+	errs = validate.Struct(tms)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 4)
+	AssertError(t, errs, "TestMultiDimensionalStructs.Errs[0][1].Name", "TestMultiDimensionalStructs.Errs[0][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructs.Errs[0][2].Name", "TestMultiDimensionalStructs.Errs[0][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructs.Errs[1][1].Name", "TestMultiDimensionalStructs.Errs[1][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructs.Errs[1][2].Name", "TestMultiDimensionalStructs.Errs[1][2].Name", "Name", "Name", "required")
+
+	type TestMultiDimensionalStructsPtr struct {
+		Errs [][]*Inner `validate:"gt=0,dive,dive"`
+	}
+
+	var errStructPtrArray [][]*Inner
+
+	errStructPtrArray = append(errStructPtrArray, []*Inner{{"ok"}, {""}, {""}})
+	errStructPtrArray = append(errStructPtrArray, []*Inner{{"ok"}, {""}, {""}})
+	errStructPtrArray = append(errStructPtrArray, []*Inner{{"ok"}, {""}, nil})
+
+	tmsp := &TestMultiDimensionalStructsPtr{
+		Errs: errStructPtrArray,
+	}
+
+	errs = validate.Struct(tmsp)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 5)
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr.Errs[0][1].Name", "TestMultiDimensionalStructsPtr.Errs[0][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr.Errs[0][2].Name", "TestMultiDimensionalStructsPtr.Errs[0][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr.Errs[1][1].Name", "TestMultiDimensionalStructsPtr.Errs[1][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr.Errs[1][2].Name", "TestMultiDimensionalStructsPtr.Errs[1][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr.Errs[2][1].Name", "TestMultiDimensionalStructsPtr.Errs[2][1].Name", "Name", "Name", "required")
+
+	// for full test coverage
+	s := fmt.Sprint(errs.Error())
+	NotEqual(t, s, "")
+
+	type TestMultiDimensionalStructsPtr2 struct {
+		Errs [][]*Inner `validate:"gt=0,dive,dive,required"`
+	}
+
+	var errStructPtr2Array [][]*Inner
+
+	errStructPtr2Array = append(errStructPtr2Array, []*Inner{{"ok"}, {""}, {""}})
+	errStructPtr2Array = append(errStructPtr2Array, []*Inner{{"ok"}, {""}, {""}})
+	errStructPtr2Array = append(errStructPtr2Array, []*Inner{{"ok"}, {""}, nil})
+
+	tmsp2 := &TestMultiDimensionalStructsPtr2{
+		Errs: errStructPtr2Array,
+	}
+
+	errs = validate.Struct(tmsp2)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 6)
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[0][1].Name", "TestMultiDimensionalStructsPtr2.Errs[0][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[0][2].Name", "TestMultiDimensionalStructsPtr2.Errs[0][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[1][1].Name", "TestMultiDimensionalStructsPtr2.Errs[1][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[1][2].Name", "TestMultiDimensionalStructsPtr2.Errs[1][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[2][1].Name", "TestMultiDimensionalStructsPtr2.Errs[2][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr2.Errs[2][2]", "TestMultiDimensionalStructsPtr2.Errs[2][2]", "Errs[2][2]", "Errs[2][2]", "required")
+
+	type TestMultiDimensionalStructsPtr3 struct {
+		Errs [][]*Inner `validate:"gt=0,dive,dive,omitempty"`
+	}
+
+	var errStructPtr3Array [][]*Inner
+
+	errStructPtr3Array = append(errStructPtr3Array, []*Inner{{"ok"}, {""}, {""}})
+	errStructPtr3Array = append(errStructPtr3Array, []*Inner{{"ok"}, {""}, {""}})
+	errStructPtr3Array = append(errStructPtr3Array, []*Inner{{"ok"}, {""}, nil})
+
+	tmsp3 := &TestMultiDimensionalStructsPtr3{
+		Errs: errStructPtr3Array,
+	}
+
+	errs = validate.Struct(tmsp3)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 5)
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr3.Errs[0][1].Name", "TestMultiDimensionalStructsPtr3.Errs[0][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr3.Errs[0][2].Name", "TestMultiDimensionalStructsPtr3.Errs[0][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr3.Errs[1][1].Name", "TestMultiDimensionalStructsPtr3.Errs[1][1].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr3.Errs[1][2].Name", "TestMultiDimensionalStructsPtr3.Errs[1][2].Name", "Name", "Name", "required")
+	AssertError(t, errs, "TestMultiDimensionalStructsPtr3.Errs[2][1].Name", "TestMultiDimensionalStructsPtr3.Errs[2][1].Name", "Name", "Name", "required")
+
+	type TestMultiDimensionalTimeTime struct {
+		Errs [][]*time.Time `validate:"gt=0,dive,dive,required"`
+	}
+
+	var errTimePtr3Array [][]*time.Time
+
+	t1 := time.Now().UTC()
+	t2 := time.Now().UTC()
+	t3 := time.Now().UTC().Add(time.Hour * 24)
+
+	errTimePtr3Array = append(errTimePtr3Array, []*time.Time{&t1, &t2, &t3})
+	errTimePtr3Array = append(errTimePtr3Array, []*time.Time{&t1, &t2, nil})
+	errTimePtr3Array = append(errTimePtr3Array, []*time.Time{&t1, nil, nil})
+
+	tmtp3 := &TestMultiDimensionalTimeTime{
+		Errs: errTimePtr3Array,
+	}
+
+	errs = validate.Struct(tmtp3)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 3)
+	AssertError(t, errs, "TestMultiDimensionalTimeTime.Errs[1][2]", "TestMultiDimensionalTimeTime.Errs[1][2]", "Errs[1][2]", "Errs[1][2]", "required")
+	AssertError(t, errs, "TestMultiDimensionalTimeTime.Errs[2][1]", "TestMultiDimensionalTimeTime.Errs[2][1]", "Errs[2][1]", "Errs[2][1]", "required")
+	AssertError(t, errs, "TestMultiDimensionalTimeTime.Errs[2][2]", "TestMultiDimensionalTimeTime.Errs[2][2]", "Errs[2][2]", "Errs[2][2]", "required")
+
+	type TestMultiDimensionalTimeTime2 struct {
+		Errs [][]*time.Time `validate:"gt=0,dive,dive,required"`
+	}
+
+	var errTimeArray [][]*time.Time
+
+	t1 = time.Now().UTC()
+	t2 = time.Now().UTC()
+	t3 = time.Now().UTC().Add(time.Hour * 24)
+
+	errTimeArray = append(errTimeArray, []*time.Time{&t1, &t2, &t3})
+	errTimeArray = append(errTimeArray, []*time.Time{&t1, &t2, nil})
+	errTimeArray = append(errTimeArray, []*time.Time{&t1, nil, nil})
+
+	tmtp := &TestMultiDimensionalTimeTime2{
+		Errs: errTimeArray,
+	}
+
+	errs = validate.Struct(tmtp)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 3)
+	AssertError(t, errs, "TestMultiDimensionalTimeTime2.Errs[1][2]", "TestMultiDimensionalTimeTime2.Errs[1][2]", "Errs[1][2]", "Errs[1][2]", "required")
+	AssertError(t, errs, "TestMultiDimensionalTimeTime2.Errs[2][1]", "TestMultiDimensionalTimeTime2.Errs[2][1]", "Errs[2][1]", "Errs[2][1]", "required")
+	AssertError(t, errs, "TestMultiDimensionalTimeTime2.Errs[2][2]", "TestMultiDimensionalTimeTime2.Errs[2][2]", "Errs[2][2]", "Errs[2][2]", "required")
+}
+
+func TestNilStructPointerValidation(t *testing.T) {
+	type Inner struct {
+		Data string
+	}
+
+	type Outer struct {
+		Inner *Inner `validate:"omitempty"`
+	}
+
+	inner := &Inner{
+		Data: "test",
+	}
+
+	outer := &Outer{
+		Inner: inner,
+	}
+
+	validate := New()
+	errs := validate.Struct(outer)
+	Equal(t, errs, nil)
+
+	outer = &Outer{
+		Inner: nil,
+	}
+
+	errs = validate.Struct(outer)
+	Equal(t, errs, nil)
+
+	type Inner2 struct {
+		Data string
+	}
+
+	type Outer2 struct {
+		Inner2 *Inner2 `validate:"required"`
+	}
+
+	inner2 := &Inner2{
+		Data: "test",
+	}
+
+	outer2 := &Outer2{
+		Inner2: inner2,
+	}
+
+	errs = validate.Struct(outer2)
+	Equal(t, errs, nil)
+
+	outer2 = &Outer2{
+		Inner2: nil,
+	}
+
+	errs = validate.Struct(outer2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Outer2.Inner2", "Outer2.Inner2", "Inner2", "Inner2", "required")
+
+	type Inner3 struct {
+		Data string
+	}
+
+	type Outer3 struct {
+		Inner3 *Inner3
+	}
+
+	inner3 := &Inner3{
+		Data: "test",
+	}
+
+	outer3 := &Outer3{
+		Inner3: inner3,
+	}
+
+	errs = validate.Struct(outer3)
+	Equal(t, errs, nil)
+
+	type Inner4 struct {
+		Data string
+	}
+
+	type Outer4 struct {
+		Inner4 *Inner4 `validate:"-"`
+	}
+
+	inner4 := &Inner4{
+		Data: "test",
+	}
+
+	outer4 := &Outer4{
+		Inner4: inner4,
+	}
+
+	errs = validate.Struct(outer4)
+	Equal(t, errs, nil)
+}
+
+func TestSSNValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"00-90-8787", false},
+		{"66690-76", false},
+		{"191 60 2869", true},
+		{"191-60-2869", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "ssn")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d SSN failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d SSN failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "ssn" {
+					t.Fatalf("Index: %d Latitude failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestLongitudeValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"-180.000", true},
+		{"180.1", false},
+		{"+73.234", true},
+		{"+382.3811", false},
+		{"23.11111111", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "longitude")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Longitude failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Longitude failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "longitude" {
+					t.Fatalf("Index: %d Latitude failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestLatitudeValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"-90.000", true},
+		{"+90", true},
+		{"47.1231231", true},
+		{"+99.9", false},
+		{"108", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "latitude")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Latitude failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Latitude failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "latitude" {
+					t.Fatalf("Index: %d Latitude failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestDataURIValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"data:image/png;base64,TG9yZW0gaXBzdW0gZG9sb3Igc2l0IGFtZXQsIGNvbnNlY3RldHVyIGFkaXBpc2NpbmcgZWxpdC4=", true},
+		{"data:text/plain;base64,Vml2YW11cyBmZXJtZW50dW0gc2VtcGVyIHBvcnRhLg==", true},
+		{"image/gif;base64,U3VzcGVuZGlzc2UgbGVjdHVzIGxlbw==", false},
+		{"data:image/gif;base64,MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuMPNS1Ufof9EW/M98FNw" +
+			"UAKrwflsqVxaxQjBQnHQmiI7Vac40t8x7pIb8gLGV6wL7sBTJiPovJ0V7y7oc0Ye" +
+			"rhKh0Rm4skP2z/jHwwZICgGzBvA0rH8xlhUiTvcwDCJ0kc+fh35hNt8srZQM4619" +
+			"FTgB66Xmp4EtVyhpQV+t02g6NzK72oZI0vnAvqhpkxLeLiMCyrI416wHm5Tkukhx" +
+			"QmcL2a6hNOyu0ixX/x2kSFXApEnVrJ+/IxGyfyw8kf4N2IZpW5nEP847lpfj0SZZ" +
+			"Fwrd1mnfnDbYohX2zRptLy2ZUn06Qo9pkG5ntvFEPo9bfZeULtjYzIl6K8gJ2uGZ" + "HQIDAQAB", true},
+		{"data:image/png;base64,12345", false},
+		{"", false},
+		{"data:text,:;base85,U3VzcGVuZGlzc2UgbGVjdHVzIGxlbw==", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "datauri")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d DataURI failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d DataURI failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "datauri" {
+					t.Fatalf("Index: %d DataURI failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestMultibyteValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", true},
+		{"abc", false},
+		{"123", false},
+		{"<>@;.-=", false},
+		{"ひらがな・カタカナ、．漢字", true},
+		{"あいうえお foobar", true},
+		{"test＠example.com", true},
+		{"test＠example.com", true},
+		{"1234abcDEｘｙｚ", true},
+		{"ｶﾀｶﾅ", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "multibyte")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Multibyte failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Multibyte failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "multibyte" {
+					t.Fatalf("Index: %d Multibyte failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestPrintableASCIIValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", true},
+		{"ｆｏｏbar", false},
+		{"ｘｙｚ０９８", false},
+		{"１２３456", false},
+		{"ｶﾀｶﾅ", false},
+		{"foobar", true},
+		{"0987654321", true},
+		{"test@example.com", true},
+		{"1234abcDEF", true},
+		{"newline\n", false},
+		{"\x19test\x7F", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "printascii")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Printable ASCII failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Printable ASCII failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "printascii" {
+					t.Fatalf("Index: %d Printable ASCII failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestASCIIValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", true},
+		{"ｆｏｏbar", false},
+		{"ｘｙｚ０９８", false},
+		{"１２３456", false},
+		{"ｶﾀｶﾅ", false},
+		{"foobar", true},
+		{"0987654321", true},
+		{"test@example.com", true},
+		{"1234abcDEF", true},
+		{"", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "ascii")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ASCII failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ASCII failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "ascii" {
+					t.Fatalf("Index: %d ASCII failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestUUID5Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+
+		{"", false},
+		{"xxxa987fbc9-4bed-3078-cf07-9141ba07c9f3", false},
+		{"9c858901-8a57-4791-81fe-4c455b099bc9", false},
+		{"a987fbc9-4bed-3078-cf07-9141ba07c9f3", false},
+		{"987fbc97-4bed-5078-af07-9141ba07c9f3", true},
+		{"987fbc97-4bed-5078-9f07-9141ba07c9f3", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "uuid5")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d UUID5 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d UUID5 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "uuid5" {
+					t.Fatalf("Index: %d UUID5 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestUUID4Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"xxxa987fbc9-4bed-3078-cf07-9141ba07c9f3", false},
+		{"a987fbc9-4bed-5078-af07-9141ba07c9f3", false},
+		{"934859", false},
+		{"57b73598-8764-4ad0-a76a-679bb6640eb1", true},
+		{"625e63f3-58f5-40b7-83a1-a72ad31acffb", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "uuid4")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d UUID4 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d UUID4 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "uuid4" {
+					t.Fatalf("Index: %d UUID4 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestUUID3Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"412452646", false},
+		{"xxxa987fbc9-4bed-3078-cf07-9141ba07c9f3", false},
+		{"a987fbc9-4bed-4078-8f07-9141ba07c9f3", false},
+		{"a987fbc9-4bed-3078-cf07-9141ba07c9f3", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "uuid3")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d UUID3 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d UUID3 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "uuid3" {
+					t.Fatalf("Index: %d UUID3 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestUUIDValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"xxxa987fbc9-4bed-3078-cf07-9141ba07c9f3", false},
+		{"a987fbc9-4bed-3078-cf07-9141ba07c9f3xxx", false},
+		{"a987fbc94bed3078cf079141ba07c9f3", false},
+		{"934859", false},
+		{"987fbc9-4bed-3078-cf07a-9141ba07c9f3", false},
+		{"aaaaaaaa-1111-1111-aaag-111111111111", false},
+		{"a987fbc9-4bed-3078-cf07-9141ba07c9f3", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "uuid")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d UUID failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d UUID failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "uuid" {
+					t.Fatalf("Index: %d UUID failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestISBNValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"foo", false},
+		{"3836221195", true},
+		{"1-61729-085-8", true},
+		{"3 423 21412 0", true},
+		{"3 401 01319 X", true},
+		{"9784873113685", true},
+		{"978-4-87311-368-5", true},
+		{"978 3401013190", true},
+		{"978-3-8362-2119-1", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "isbn")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ISBN failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ISBN failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "isbn" {
+					t.Fatalf("Index: %d ISBN failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestISBN13Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"foo", false},
+		{"3-8362-2119-5", false},
+		{"01234567890ab", false},
+		{"978 3 8362 2119 0", false},
+		{"9784873113685", true},
+		{"978-4-87311-368-5", true},
+		{"978 3401013190", true},
+		{"978-3-8362-2119-1", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "isbn13")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ISBN13 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ISBN13 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "isbn13" {
+					t.Fatalf("Index: %d ISBN13 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestISBN10Validation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"foo", false},
+		{"3423214121", false},
+		{"978-3836221191", false},
+		{"3-423-21412-1", false},
+		{"3 423 21412 1", false},
+		{"3836221195", true},
+		{"1-61729-085-8", true},
+		{"3 423 21412 0", true},
+		{"3 401 01319 X", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "isbn10")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ISBN10 failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d ISBN10 failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "isbn10" {
+					t.Fatalf("Index: %d ISBN10 failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestExcludesRuneValidation(t *testing.T) {
+
+	tests := []struct {
+		Value       string `validate:"excludesrune=☻"`
+		Tag         string
+		ExpectedNil bool
+	}{
+		{Value: "a☺b☻c☹d", Tag: "excludesrune=☻", ExpectedNil: false},
+		{Value: "abcd", Tag: "excludesrune=☻", ExpectedNil: true},
+	}
+
+	validate := New()
+
+	for i, s := range tests {
+		errs := validate.Var(s.Value, s.Tag)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+
+		errs = validate.Struct(s)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+	}
+}
+
+func TestExcludesAllValidation(t *testing.T) {
+
+	tests := []struct {
+		Value       string `validate:"excludesall=@!{}[]"`
+		Tag         string
+		ExpectedNil bool
+	}{
+		{Value: "abcd@!jfk", Tag: "excludesall=@!{}[]", ExpectedNil: false},
+		{Value: "abcdefg", Tag: "excludesall=@!{}[]", ExpectedNil: true},
+	}
+
+	validate := New()
+
+	for i, s := range tests {
+		errs := validate.Var(s.Value, s.Tag)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+
+		errs = validate.Struct(s)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+	}
+
+	username := "joeybloggs "
+
+	errs := validate.Var(username, "excludesall=@ ")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "excludesall")
+
+	excluded := ","
+
+	errs = validate.Var(excluded, "excludesall=!@#$%^&*()_+.0x2C?")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "excludesall")
+
+	excluded = "="
+
+	errs = validate.Var(excluded, "excludesall=!@#$%^&*()_+.0x2C=?")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "excludesall")
+}
+
+func TestExcludesValidation(t *testing.T) {
+
+	tests := []struct {
+		Value       string `validate:"excludes=@"`
+		Tag         string
+		ExpectedNil bool
+	}{
+		{Value: "abcd@!jfk", Tag: "excludes=@", ExpectedNil: false},
+		{Value: "abcdq!jfk", Tag: "excludes=@", ExpectedNil: true},
+	}
+
+	validate := New()
+
+	for i, s := range tests {
+		errs := validate.Var(s.Value, s.Tag)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+
+		errs = validate.Struct(s)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+	}
+}
+
+func TestContainsRuneValidation(t *testing.T) {
+
+	tests := []struct {
+		Value       string `validate:"containsrune=☻"`
+		Tag         string
+		ExpectedNil bool
+	}{
+		{Value: "a☺b☻c☹d", Tag: "containsrune=☻", ExpectedNil: true},
+		{Value: "abcd", Tag: "containsrune=☻", ExpectedNil: false},
+	}
+
+	validate := New()
+
+	for i, s := range tests {
+		errs := validate.Var(s.Value, s.Tag)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+
+		errs = validate.Struct(s)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+	}
+}
+
+func TestContainsAnyValidation(t *testing.T) {
+
+	tests := []struct {
+		Value       string `validate:"containsany=@!{}[]"`
+		Tag         string
+		ExpectedNil bool
+	}{
+		{Value: "abcd@!jfk", Tag: "containsany=@!{}[]", ExpectedNil: true},
+		{Value: "abcdefg", Tag: "containsany=@!{}[]", ExpectedNil: false},
+	}
+
+	validate := New()
+
+	for i, s := range tests {
+		errs := validate.Var(s.Value, s.Tag)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+
+		errs = validate.Struct(s)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+	}
+}
+
+func TestContainsValidation(t *testing.T) {
+
+	tests := []struct {
+		Value       string `validate:"contains=@"`
+		Tag         string
+		ExpectedNil bool
+	}{
+		{Value: "abcd@!jfk", Tag: "contains=@", ExpectedNil: true},
+		{Value: "abcdq!jfk", Tag: "contains=@", ExpectedNil: false},
+	}
+
+	validate := New()
+
+	for i, s := range tests {
+		errs := validate.Var(s.Value, s.Tag)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+
+		errs = validate.Struct(s)
+
+		if (s.ExpectedNil && errs != nil) || (!s.ExpectedNil && errs == nil) {
+			t.Fatalf("Index: %d failed Error: %s", i, errs)
+		}
+	}
+}
+
+func TestIsNeFieldValidation(t *testing.T) {
+
+	validate := New()
+
+	var j uint64
+	var k float64
+	s := "abcd"
+	i := 1
+	j = 1
+	k = 1.543
+	arr := []string{"test"}
+	now := time.Now().UTC()
+
+	var j2 uint64
+	var k2 float64
+	s2 := "abcdef"
+	i2 := 3
+	j2 = 2
+	k2 = 1.5434456
+	arr2 := []string{"test", "test2"}
+	arr3 := []string{"test"}
+	now2 := now
+
+	errs := validate.VarWithValue(s, s2, "nefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(i2, i, "nefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(j2, j, "nefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(k2, k, "nefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(arr2, arr, "nefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(now2, now, "nefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "nefield")
+
+	errs = validate.VarWithValue(arr3, arr, "nefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "nefield")
+
+	type Test struct {
+		Start *time.Time `validate:"nefield=End"`
+		End   *time.Time
+	}
+
+	sv := &Test{
+		Start: &now,
+		End:   &now,
+	}
+
+	errs = validate.Struct(sv)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.Start", "Test.Start", "Start", "Start", "nefield")
+
+	now3 := time.Now().UTC()
+
+	sv = &Test{
+		Start: &now,
+		End:   &now3,
+	}
+
+	errs = validate.Struct(sv)
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(nil, 1, "nefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "nefield")
+
+	errs = validate.VarWithValue(sv, now, "nefield")
+	Equal(t, errs, nil)
+
+	type Test2 struct {
+		Start *time.Time `validate:"nefield=NonExistantField"`
+		End   *time.Time
+	}
+
+	sv2 := &Test2{
+		Start: &now,
+		End:   &now,
+	}
+
+	errs = validate.Struct(sv2)
+	Equal(t, errs, nil)
+
+	type Other struct {
+		Value string
+	}
+
+	type Test3 struct {
+		Value Other
+		Time  time.Time `validate:"nefield=Value"`
+	}
+
+	tst := Test3{
+		Value: Other{Value: "StringVal"},
+		Time:  now,
+	}
+
+	errs = validate.Struct(tst)
+	Equal(t, errs, nil)
+}
+
+func TestIsNeValidation(t *testing.T) {
+
+	validate := New()
+
+	var j uint64
+	var k float64
+	s := "abcdef"
+	i := 3
+	j = 2
+	k = 1.5434
+	arr := []string{"test"}
+	now := time.Now().UTC()
+
+	errs := validate.Var(s, "ne=abcd")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(i, "ne=1")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(j, "ne=1")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(k, "ne=1.543")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(arr, "ne=2")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(arr, "ne=1")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ne")
+
+	PanicMatches(t, func() { validate.Var(now, "ne=now") }, "Bad field type time.Time")
+}
+
+func TestIsEqFieldValidation(t *testing.T) {
+
+	validate := New()
+
+	var j uint64
+	var k float64
+	s := "abcd"
+	i := 1
+	j = 1
+	k = 1.543
+	arr := []string{"test"}
+	now := time.Now().UTC()
+
+	var j2 uint64
+	var k2 float64
+	s2 := "abcd"
+	i2 := 1
+	j2 = 1
+	k2 = 1.543
+	arr2 := []string{"test"}
+	arr3 := []string{"test", "test2"}
+	now2 := now
+
+	errs := validate.VarWithValue(s, s2, "eqfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(i2, i, "eqfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(j2, j, "eqfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(k2, k, "eqfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(arr2, arr, "eqfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(now2, now, "eqfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(arr3, arr, "eqfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "eqfield")
+
+	type Test struct {
+		Start *time.Time `validate:"eqfield=End"`
+		End   *time.Time
+	}
+
+	sv := &Test{
+		Start: &now,
+		End:   &now,
+	}
+
+	errs = validate.Struct(sv)
+	Equal(t, errs, nil)
+
+	now3 := time.Now().UTC()
+
+	sv = &Test{
+		Start: &now,
+		End:   &now3,
+	}
+
+	errs = validate.Struct(sv)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.Start", "Test.Start", "Start", "Start", "eqfield")
+
+	errs = validate.VarWithValue(nil, 1, "eqfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "eqfield")
+
+	channel := make(chan string)
+	errs = validate.VarWithValue(5, channel, "eqfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "eqfield")
+
+	errs = validate.VarWithValue(5, now, "eqfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "eqfield")
+
+	type Test2 struct {
+		Start *time.Time `validate:"eqfield=NonExistantField"`
+		End   *time.Time
+	}
+
+	sv2 := &Test2{
+		Start: &now,
+		End:   &now,
+	}
+
+	errs = validate.Struct(sv2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test2.Start", "Test2.Start", "Start", "Start", "eqfield")
+
+	type Inner struct {
+		Name string
+	}
+
+	type TStruct struct {
+		Inner     *Inner
+		CreatedAt *time.Time `validate:"eqfield=Inner"`
+	}
+
+	inner := &Inner{
+		Name: "NAME",
+	}
+
+	test := &TStruct{
+		Inner:     inner,
+		CreatedAt: &now,
+	}
+
+	errs = validate.Struct(test)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TStruct.CreatedAt", "TStruct.CreatedAt", "CreatedAt", "CreatedAt", "eqfield")
+}
+
+func TestIsEqValidation(t *testing.T) {
+
+	validate := New()
+
+	var j uint64
+	var k float64
+	s := "abcd"
+	i := 1
+	j = 1
+	k = 1.543
+	arr := []string{"test"}
+	now := time.Now().UTC()
+
+	errs := validate.Var(s, "eq=abcd")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(i, "eq=1")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(j, "eq=1")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(k, "eq=1.543")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(arr, "eq=1")
+	Equal(t, errs, nil)
+
+	errs = validate.Var(arr, "eq=2")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "eq")
+
+	PanicMatches(t, func() { validate.Var(now, "eq=now") }, "Bad field type time.Time")
+}
+
+func TestBase64Validation(t *testing.T) {
+
+	validate := New()
+
+	s := "dW5pY29ybg=="
+
+	errs := validate.Var(s, "base64")
+	Equal(t, errs, nil)
+
+	s = "dGhpIGlzIGEgdGVzdCBiYXNlNjQ="
+	errs = validate.Var(s, "base64")
+	Equal(t, errs, nil)
+
+	s = ""
+	errs = validate.Var(s, "base64")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "base64")
+
+	s = "dW5pY29ybg== foo bar"
+	errs = validate.Var(s, "base64")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "base64")
+}
+
+func TestNoStructLevelValidation(t *testing.T) {
+
+	type Inner struct {
+		Test string `validate:"len=5"`
+	}
+
+	type Outer struct {
+		InnerStruct *Inner `validate:"required,nostructlevel"`
+	}
+
+	outer := &Outer{
+		InnerStruct: nil,
+	}
+
+	validate := New()
+
+	errs := validate.Struct(outer)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Outer.InnerStruct", "Outer.InnerStruct", "InnerStruct", "InnerStruct", "required")
+
+	inner := &Inner{
+		Test: "1234",
+	}
+
+	outer = &Outer{
+		InnerStruct: inner,
+	}
+
+	errs = validate.Struct(outer)
+	Equal(t, errs, nil)
+}
+
+func TestStructOnlyValidation(t *testing.T) {
+
+	type Inner struct {
+		Test string `validate:"len=5"`
+	}
+
+	type Outer struct {
+		InnerStruct *Inner `validate:"required,structonly"`
+	}
+
+	outer := &Outer{
+		InnerStruct: nil,
+	}
+
+	validate := New()
+
+	errs := validate.Struct(outer)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Outer.InnerStruct", "Outer.InnerStruct", "InnerStruct", "InnerStruct", "required")
+
+	inner := &Inner{
+		Test: "1234",
+	}
+
+	outer = &Outer{
+		InnerStruct: inner,
+	}
+
+	errs = validate.Struct(outer)
+	Equal(t, errs, nil)
+
+	// Address houses a users address information
+	type Address struct {
+		Street string `validate:"required"`
+		City   string `validate:"required"`
+		Planet string `validate:"required"`
+		Phone  string `validate:"required"`
+	}
+
+	type User struct {
+		FirstName      string     `json:"fname"`
+		LastName       string     `json:"lname"`
+		Age            uint8      `validate:"gte=0,lte=130"`
+		Email          string     `validate:"required,email"`
+		FavouriteColor string     `validate:"hexcolor|rgb|rgba"`
+		Addresses      []*Address `validate:"required"`   // a person can have a home and cottage...
+		Address        Address    `validate:"structonly"` // a person can have a home and cottage...
+	}
+
+	address := &Address{
+		Street: "Eavesdown Docks",
+		Planet: "Persphone",
+		Phone:  "none",
+		City:   "Unknown",
+	}
+
+	user := &User{
+		FirstName:      "",
+		LastName:       "",
+		Age:            45,
+		Email:          "Badger.Smith@gmail.com",
+		FavouriteColor: "#000",
+		Addresses:      []*Address{address},
+		Address: Address{
+			// Street: "Eavesdown Docks",
+			Planet: "Persphone",
+			Phone:  "none",
+			City:   "Unknown",
+		},
+	}
+
+	errs = validate.Struct(user)
+	Equal(t, errs, nil)
+}
+
+func TestGtField(t *testing.T) {
+
+	validate := New()
+
+	type TimeTest struct {
+		Start *time.Time `validate:"required,gt"`
+		End   *time.Time `validate:"required,gt,gtfield=Start"`
+	}
+
+	now := time.Now()
+	start := now.Add(time.Hour * 24)
+	end := start.Add(time.Hour * 24)
+
+	timeTest := &TimeTest{
+		Start: &start,
+		End:   &end,
+	}
+
+	errs := validate.Struct(timeTest)
+	Equal(t, errs, nil)
+
+	timeTest = &TimeTest{
+		Start: &end,
+		End:   &start,
+	}
+
+	errs = validate.Struct(timeTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TimeTest.End", "TimeTest.End", "End", "End", "gtfield")
+
+	errs = validate.VarWithValue(&end, &start, "gtfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(&start, &end, "gtfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtfield")
+
+	errs = validate.VarWithValue(&end, &start, "gtfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(&timeTest, &end, "gtfield")
+	NotEqual(t, errs, nil)
+
+	errs = validate.VarWithValue("test bigger", "test", "gtfield")
+	Equal(t, errs, nil)
+
+	type IntTest struct {
+		Val1 int `validate:"required"`
+		Val2 int `validate:"required,gtfield=Val1"`
+	}
+
+	intTest := &IntTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(intTest)
+	Equal(t, errs, nil)
+
+	intTest = &IntTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(intTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "IntTest.Val2", "IntTest.Val2", "Val2", "Val2", "gtfield")
+
+	errs = validate.VarWithValue(int(5), int(1), "gtfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(int(1), int(5), "gtfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtfield")
+
+	type UIntTest struct {
+		Val1 uint `validate:"required"`
+		Val2 uint `validate:"required,gtfield=Val1"`
+	}
+
+	uIntTest := &UIntTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(uIntTest)
+	Equal(t, errs, nil)
+
+	uIntTest = &UIntTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(uIntTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "UIntTest.Val2", "UIntTest.Val2", "Val2", "Val2", "gtfield")
+
+	errs = validate.VarWithValue(uint(5), uint(1), "gtfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(uint(1), uint(5), "gtfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtfield")
+
+	type FloatTest struct {
+		Val1 float64 `validate:"required"`
+		Val2 float64 `validate:"required,gtfield=Val1"`
+	}
+
+	floatTest := &FloatTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(floatTest)
+	Equal(t, errs, nil)
+
+	floatTest = &FloatTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(floatTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "FloatTest.Val2", "FloatTest.Val2", "Val2", "Val2", "gtfield")
+
+	errs = validate.VarWithValue(float32(5), float32(1), "gtfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(float32(1), float32(5), "gtfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtfield")
+
+	errs = validate.VarWithValue(nil, 1, "gtfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtfield")
+
+	errs = validate.VarWithValue(5, "T", "gtfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtfield")
+
+	errs = validate.VarWithValue(5, start, "gtfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtfield")
+
+	type TimeTest2 struct {
+		Start *time.Time `validate:"required"`
+		End   *time.Time `validate:"required,gtfield=NonExistantField"`
+	}
+
+	timeTest2 := &TimeTest2{
+		Start: &start,
+		End:   &end,
+	}
+
+	errs = validate.Struct(timeTest2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TimeTest2.End", "TimeTest2.End", "End", "End", "gtfield")
+
+	type Other struct {
+		Value string
+	}
+
+	type Test struct {
+		Value Other
+		Time  time.Time `validate:"gtfield=Value"`
+	}
+
+	tst := Test{
+		Value: Other{Value: "StringVal"},
+		Time:  end,
+	}
+
+	errs = validate.Struct(tst)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.Time", "Test.Time", "Time", "Time", "gtfield")
+}
+
+func TestLtField(t *testing.T) {
+
+	validate := New()
+
+	type TimeTest struct {
+		Start *time.Time `validate:"required,lt,ltfield=End"`
+		End   *time.Time `validate:"required,lt"`
+	}
+
+	now := time.Now()
+	start := now.Add(time.Hour * 24 * -1 * 2)
+	end := start.Add(time.Hour * 24)
+
+	timeTest := &TimeTest{
+		Start: &start,
+		End:   &end,
+	}
+
+	errs := validate.Struct(timeTest)
+	Equal(t, errs, nil)
+
+	timeTest = &TimeTest{
+		Start: &end,
+		End:   &start,
+	}
+
+	errs = validate.Struct(timeTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TimeTest.Start", "TimeTest.Start", "Start", "Start", "ltfield")
+
+	errs = validate.VarWithValue(&start, &end, "ltfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(&end, &start, "ltfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltfield")
+
+	errs = validate.VarWithValue(&end, timeTest, "ltfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltfield")
+
+	errs = validate.VarWithValue("tes", "test", "ltfield")
+	Equal(t, errs, nil)
+
+	type IntTest struct {
+		Val1 int `validate:"required"`
+		Val2 int `validate:"required,ltfield=Val1"`
+	}
+
+	intTest := &IntTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(intTest)
+	Equal(t, errs, nil)
+
+	intTest = &IntTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(intTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "IntTest.Val2", "IntTest.Val2", "Val2", "Val2", "ltfield")
+
+	errs = validate.VarWithValue(int(1), int(5), "ltfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(int(5), int(1), "ltfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltfield")
+
+	type UIntTest struct {
+		Val1 uint `validate:"required"`
+		Val2 uint `validate:"required,ltfield=Val1"`
+	}
+
+	uIntTest := &UIntTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(uIntTest)
+	Equal(t, errs, nil)
+
+	uIntTest = &UIntTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(uIntTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "UIntTest.Val2", "UIntTest.Val2", "Val2", "Val2", "ltfield")
+
+	errs = validate.VarWithValue(uint(1), uint(5), "ltfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(uint(5), uint(1), "ltfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltfield")
+
+	type FloatTest struct {
+		Val1 float64 `validate:"required"`
+		Val2 float64 `validate:"required,ltfield=Val1"`
+	}
+
+	floatTest := &FloatTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(floatTest)
+	Equal(t, errs, nil)
+
+	floatTest = &FloatTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(floatTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "FloatTest.Val2", "FloatTest.Val2", "Val2", "Val2", "ltfield")
+
+	errs = validate.VarWithValue(float32(1), float32(5), "ltfield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(float32(5), float32(1), "ltfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltfield")
+
+	errs = validate.VarWithValue(nil, 5, "ltfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltfield")
+
+	errs = validate.VarWithValue(1, "T", "ltfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltfield")
+
+	errs = validate.VarWithValue(1, end, "ltfield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltfield")
+
+	type TimeTest2 struct {
+		Start *time.Time `validate:"required"`
+		End   *time.Time `validate:"required,ltfield=NonExistantField"`
+	}
+
+	timeTest2 := &TimeTest2{
+		Start: &end,
+		End:   &start,
+	}
+
+	errs = validate.Struct(timeTest2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TimeTest2.End", "TimeTest2.End", "End", "End", "ltfield")
+}
+
+func TestLteField(t *testing.T) {
+
+	validate := New()
+
+	type TimeTest struct {
+		Start *time.Time `validate:"required,lte,ltefield=End"`
+		End   *time.Time `validate:"required,lte"`
+	}
+
+	now := time.Now()
+	start := now.Add(time.Hour * 24 * -1 * 2)
+	end := start.Add(time.Hour * 24)
+
+	timeTest := &TimeTest{
+		Start: &start,
+		End:   &end,
+	}
+
+	errs := validate.Struct(timeTest)
+	Equal(t, errs, nil)
+
+	timeTest = &TimeTest{
+		Start: &end,
+		End:   &start,
+	}
+
+	errs = validate.Struct(timeTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TimeTest.Start", "TimeTest.Start", "Start", "Start", "ltefield")
+
+	errs = validate.VarWithValue(&start, &end, "ltefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(&end, &start, "ltefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltefield")
+
+	errs = validate.VarWithValue(&end, timeTest, "ltefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltefield")
+
+	errs = validate.VarWithValue("tes", "test", "ltefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue("test", "test", "ltefield")
+	Equal(t, errs, nil)
+
+	type IntTest struct {
+		Val1 int `validate:"required"`
+		Val2 int `validate:"required,ltefield=Val1"`
+	}
+
+	intTest := &IntTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(intTest)
+	Equal(t, errs, nil)
+
+	intTest = &IntTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(intTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "IntTest.Val2", "IntTest.Val2", "Val2", "Val2", "ltefield")
+
+	errs = validate.VarWithValue(int(1), int(5), "ltefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(int(5), int(1), "ltefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltefield")
+
+	type UIntTest struct {
+		Val1 uint `validate:"required"`
+		Val2 uint `validate:"required,ltefield=Val1"`
+	}
+
+	uIntTest := &UIntTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(uIntTest)
+	Equal(t, errs, nil)
+
+	uIntTest = &UIntTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(uIntTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "UIntTest.Val2", "UIntTest.Val2", "Val2", "Val2", "ltefield")
+
+	errs = validate.VarWithValue(uint(1), uint(5), "ltefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(uint(5), uint(1), "ltefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltefield")
+
+	type FloatTest struct {
+		Val1 float64 `validate:"required"`
+		Val2 float64 `validate:"required,ltefield=Val1"`
+	}
+
+	floatTest := &FloatTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(floatTest)
+	Equal(t, errs, nil)
+
+	floatTest = &FloatTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(floatTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "FloatTest.Val2", "FloatTest.Val2", "Val2", "Val2", "ltefield")
+
+	errs = validate.VarWithValue(float32(1), float32(5), "ltefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(float32(5), float32(1), "ltefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltefield")
+
+	errs = validate.VarWithValue(nil, 5, "ltefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltefield")
+
+	errs = validate.VarWithValue(1, "T", "ltefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltefield")
+
+	errs = validate.VarWithValue(1, end, "ltefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "ltefield")
+
+	type TimeTest2 struct {
+		Start *time.Time `validate:"required"`
+		End   *time.Time `validate:"required,ltefield=NonExistantField"`
+	}
+
+	timeTest2 := &TimeTest2{
+		Start: &end,
+		End:   &start,
+	}
+
+	errs = validate.Struct(timeTest2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TimeTest2.End", "TimeTest2.End", "End", "End", "ltefield")
+}
+
+func TestGteField(t *testing.T) {
+
+	validate := New()
+
+	type TimeTest struct {
+		Start *time.Time `validate:"required,gte"`
+		End   *time.Time `validate:"required,gte,gtefield=Start"`
+	}
+
+	now := time.Now()
+	start := now.Add(time.Hour * 24)
+	end := start.Add(time.Hour * 24)
+
+	timeTest := &TimeTest{
+		Start: &start,
+		End:   &end,
+	}
+
+	errs := validate.Struct(timeTest)
+	Equal(t, errs, nil)
+
+	timeTest = &TimeTest{
+		Start: &end,
+		End:   &start,
+	}
+
+	errs = validate.Struct(timeTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TimeTest.End", "TimeTest.End", "End", "End", "gtefield")
+
+	errs = validate.VarWithValue(&end, &start, "gtefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(&start, &end, "gtefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtefield")
+
+	errs = validate.VarWithValue(&start, timeTest, "gtefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtefield")
+
+	errs = validate.VarWithValue("test", "test", "gtefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue("test bigger", "test", "gtefield")
+	Equal(t, errs, nil)
+
+	type IntTest struct {
+		Val1 int `validate:"required"`
+		Val2 int `validate:"required,gtefield=Val1"`
+	}
+
+	intTest := &IntTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(intTest)
+	Equal(t, errs, nil)
+
+	intTest = &IntTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(intTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "IntTest.Val2", "IntTest.Val2", "Val2", "Val2", "gtefield")
+
+	errs = validate.VarWithValue(int(5), int(1), "gtefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(int(1), int(5), "gtefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtefield")
+
+	type UIntTest struct {
+		Val1 uint `validate:"required"`
+		Val2 uint `validate:"required,gtefield=Val1"`
+	}
+
+	uIntTest := &UIntTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(uIntTest)
+	Equal(t, errs, nil)
+
+	uIntTest = &UIntTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(uIntTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "UIntTest.Val2", "UIntTest.Val2", "Val2", "Val2", "gtefield")
+
+	errs = validate.VarWithValue(uint(5), uint(1), "gtefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(uint(1), uint(5), "gtefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtefield")
+
+	type FloatTest struct {
+		Val1 float64 `validate:"required"`
+		Val2 float64 `validate:"required,gtefield=Val1"`
+	}
+
+	floatTest := &FloatTest{
+		Val1: 1,
+		Val2: 5,
+	}
+
+	errs = validate.Struct(floatTest)
+	Equal(t, errs, nil)
+
+	floatTest = &FloatTest{
+		Val1: 5,
+		Val2: 1,
+	}
+
+	errs = validate.Struct(floatTest)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "FloatTest.Val2", "FloatTest.Val2", "Val2", "Val2", "gtefield")
+
+	errs = validate.VarWithValue(float32(5), float32(1), "gtefield")
+	Equal(t, errs, nil)
+
+	errs = validate.VarWithValue(float32(1), float32(5), "gtefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtefield")
+
+	errs = validate.VarWithValue(nil, 1, "gtefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtefield")
+
+	errs = validate.VarWithValue(5, "T", "gtefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtefield")
+
+	errs = validate.VarWithValue(5, start, "gtefield")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gtefield")
+
+	type TimeTest2 struct {
+		Start *time.Time `validate:"required"`
+		End   *time.Time `validate:"required,gtefield=NonExistantField"`
+	}
+
+	timeTest2 := &TimeTest2{
+		Start: &start,
+		End:   &end,
+	}
+
+	errs = validate.Struct(timeTest2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TimeTest2.End", "TimeTest2.End", "End", "End", "gtefield")
+}
+
+func TestValidateByTagAndValue(t *testing.T) {
+
+	validate := New()
+
+	val := "test"
+	field := "test"
+	errs := validate.VarWithValue(val, field, "required")
+	Equal(t, errs, nil)
+
+	fn := func(fl FieldLevel) bool {
+
+		return fl.Parent().String() == fl.Field().String()
+	}
+
+	validate.RegisterValidation("isequaltestfunc", fn)
+
+	errs = validate.VarWithValue(val, field, "isequaltestfunc")
+	Equal(t, errs, nil)
+
+	val = "unequal"
+
+	errs = validate.VarWithValue(val, field, "isequaltestfunc")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "isequaltestfunc")
+}
+
+func TestAddFunctions(t *testing.T) {
+
+	fn := func(fl FieldLevel) bool {
+
+		return true
+	}
+
+	fnCtx := func(ctx context.Context, fl FieldLevel) bool {
+		return true
+	}
+
+	validate := New()
+
+	errs := validate.RegisterValidation("new", fn)
+	Equal(t, errs, nil)
+
+	errs = validate.RegisterValidation("", fn)
+	NotEqual(t, errs, nil)
+
+	validate.RegisterValidation("new", nil)
+	NotEqual(t, errs, nil)
+
+	errs = validate.RegisterValidation("new", fn)
+	Equal(t, errs, nil)
+
+	errs = validate.RegisterValidationCtx("new", fnCtx)
+	Equal(t, errs, nil)
+
+	PanicMatches(t, func() { validate.RegisterValidation("dive", fn) }, "Tag 'dive' either contains restricted characters or is the same as a restricted tag needed for normal operation")
+}
+
+func TestChangeTag(t *testing.T) {
+
+	validate := New()
+	validate.SetTagName("val")
+
+	type Test struct {
+		Name string `val:"len=4"`
+	}
+	s := &Test{
+		Name: "TEST",
+	}
+
+	errs := validate.Struct(s)
+	Equal(t, errs, nil)
+
+	s.Name = ""
+
+	errs = validate.Struct(s)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.Name", "Test.Name", "Name", "Name", "len")
+}
+
+func TestUnexposedStruct(t *testing.T) {
+
+	validate := New()
+
+	type Test struct {
+		Name      string
+		unexposed struct {
+			A string `validate:"required"`
+		}
+	}
+
+	s := &Test{
+		Name: "TEST",
+	}
+
+	errs := validate.Struct(s)
+	Equal(t, errs, nil)
+}
+
+func TestBadParams(t *testing.T) {
+
+	validate := New()
+
+	i := 1
+	errs := validate.Var(i, "-")
+	Equal(t, errs, nil)
+
+	PanicMatches(t, func() { validate.Var(i, "len=a") }, "strconv.ParseInt: parsing \"a\": invalid syntax")
+	PanicMatches(t, func() { validate.Var(i, "len=a") }, "strconv.ParseInt: parsing \"a\": invalid syntax")
+
+	var ui uint = 1
+	PanicMatches(t, func() { validate.Var(ui, "len=a") }, "strconv.ParseUint: parsing \"a\": invalid syntax")
+
+	f := 1.23
+	PanicMatches(t, func() { validate.Var(f, "len=a") }, "strconv.ParseFloat: parsing \"a\": invalid syntax")
+}
+
+func TestLength(t *testing.T) {
+
+	validate := New()
+
+	i := true
+	PanicMatches(t, func() { validate.Var(i, "len") }, "Bad field type bool")
+}
+
+func TestIsGt(t *testing.T) {
+
+	validate := New()
+
+	myMap := map[string]string{}
+	errs := validate.Var(myMap, "gt=0")
+	NotEqual(t, errs, nil)
+
+	f := 1.23
+	errs = validate.Var(f, "gt=5")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gt")
+
+	var ui uint = 5
+	errs = validate.Var(ui, "gt=10")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gt")
+
+	i := true
+	PanicMatches(t, func() { validate.Var(i, "gt") }, "Bad field type bool")
+
+	tm := time.Now().UTC()
+	tm = tm.Add(time.Hour * 24)
+
+	errs = validate.Var(tm, "gt")
+	Equal(t, errs, nil)
+
+	t2 := time.Now().UTC().Add(-time.Hour)
+
+	errs = validate.Var(t2, "gt")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gt")
+
+	type Test struct {
+		Now *time.Time `validate:"gt"`
+	}
+	s := &Test{
+		Now: &tm,
+	}
+
+	errs = validate.Struct(s)
+	Equal(t, errs, nil)
+
+	s = &Test{
+		Now: &t2,
+	}
+
+	errs = validate.Struct(s)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.Now", "Test.Now", "Now", "Now", "gt")
+}
+
+func TestIsGte(t *testing.T) {
+
+	validate := New()
+
+	i := true
+	PanicMatches(t, func() { validate.Var(i, "gte") }, "Bad field type bool")
+
+	t1 := time.Now().UTC()
+	t1 = t1.Add(time.Hour * 24)
+
+	errs := validate.Var(t1, "gte")
+	Equal(t, errs, nil)
+
+	t2 := time.Now().UTC().Add(-time.Hour)
+
+	errs = validate.Var(t2, "gte")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "gte")
+
+	type Test struct {
+		Now *time.Time `validate:"gte"`
+	}
+	s := &Test{
+		Now: &t1,
+	}
+
+	errs = validate.Struct(s)
+	Equal(t, errs, nil)
+
+	s = &Test{
+		Now: &t2,
+	}
+
+	errs = validate.Struct(s)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.Now", "Test.Now", "Now", "Now", "gte")
+}
+
+func TestIsLt(t *testing.T) {
+
+	validate := New()
+
+	myMap := map[string]string{}
+	errs := validate.Var(myMap, "lt=0")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "lt")
+
+	f := 1.23
+	errs = validate.Var(f, "lt=0")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "lt")
+
+	var ui uint = 5
+	errs = validate.Var(ui, "lt=0")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "lt")
+
+	i := true
+	PanicMatches(t, func() { validate.Var(i, "lt") }, "Bad field type bool")
+
+	t1 := time.Now().UTC().Add(-time.Hour)
+
+	errs = validate.Var(t1, "lt")
+	Equal(t, errs, nil)
+
+	t2 := time.Now().UTC()
+	t2 = t2.Add(time.Hour * 24)
+
+	errs = validate.Var(t2, "lt")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "lt")
+
+	type Test struct {
+		Now *time.Time `validate:"lt"`
+	}
+
+	s := &Test{
+		Now: &t1,
+	}
+
+	errs = validate.Struct(s)
+	Equal(t, errs, nil)
+
+	s = &Test{
+		Now: &t2,
+	}
+
+	errs = validate.Struct(s)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.Now", "Test.Now", "Now", "Now", "lt")
+}
+
+func TestIsLte(t *testing.T) {
+
+	validate := New()
+
+	i := true
+	PanicMatches(t, func() { validate.Var(i, "lte") }, "Bad field type bool")
+
+	t1 := time.Now().UTC().Add(-time.Hour)
+
+	errs := validate.Var(t1, "lte")
+	Equal(t, errs, nil)
+
+	t2 := time.Now().UTC()
+	t2 = t2.Add(time.Hour * 24)
+
+	errs = validate.Var(t2, "lte")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "lte")
+
+	type Test struct {
+		Now *time.Time `validate:"lte"`
+	}
+
+	s := &Test{
+		Now: &t1,
+	}
+
+	errs = validate.Struct(s)
+	Equal(t, errs, nil)
+
+	s = &Test{
+		Now: &t2,
+	}
+
+	errs = validate.Struct(s)
+	NotEqual(t, errs, nil)
+}
+
+func TestUrl(t *testing.T) {
+
+	var tests = []struct {
+		param    string
+		expected bool
+	}{
+		{"http://foo.bar#com", true},
+		{"http://foobar.com", true},
+		{"https://foobar.com", true},
+		{"foobar.com", false},
+		{"http://foobar.coffee/", true},
+		{"http://foobar.中文网/", true},
+		{"http://foobar.org/", true},
+		{"http://foobar.org:8080/", true},
+		{"ftp://foobar.ru/", true},
+		{"http://user:pass@www.foobar.com/", true},
+		{"http://127.0.0.1/", true},
+		{"http://duckduckgo.com/?q=%2F", true},
+		{"http://localhost:3000/", true},
+		{"http://foobar.com/?foo=bar#baz=qux", true},
+		{"http://foobar.com?foo=bar", true},
+		{"http://www.xn--froschgrn-x9a.net/", true},
+		{"", false},
+		{"xyz://foobar.com", true},
+		{"invalid.", false},
+		{".com", false},
+		{"rtmp://foobar.com", true},
+		{"http://www.foo_bar.com/", true},
+		{"http://localhost:3000/", true},
+		{"http://foobar.com/#baz", true},
+		{"http://foobar.com#baz=qux", true},
+		{"http://foobar.com/t$-_.+!*\\'(),", true},
+		{"http://www.foobar.com/~foobar", true},
+		{"http://www.-foobar.com/", true},
+		{"http://www.foo---bar.com/", true},
+		{"mailto:someone@example.com", true},
+		{"irc://irc.server.org/channel", true},
+		{"irc://#channel@network", true},
+		{"/abs/test/dir", false},
+		{"./rel/test/dir", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "url")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d URL failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d URL failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "url" {
+					t.Fatalf("Index: %d URL failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+
+	i := 1
+	PanicMatches(t, func() { validate.Var(i, "url") }, "Bad field type int")
+}
+
+func TestUri(t *testing.T) {
+
+	var tests = []struct {
+		param    string
+		expected bool
+	}{
+		{"http://foo.bar#com", true},
+		{"http://foobar.com", true},
+		{"https://foobar.com", true},
+		{"foobar.com", false},
+		{"http://foobar.coffee/", true},
+		{"http://foobar.中文网/", true},
+		{"http://foobar.org/", true},
+		{"http://foobar.org:8080/", true},
+		{"ftp://foobar.ru/", true},
+		{"http://user:pass@www.foobar.com/", true},
+		{"http://127.0.0.1/", true},
+		{"http://duckduckgo.com/?q=%2F", true},
+		{"http://localhost:3000/", true},
+		{"http://foobar.com/?foo=bar#baz=qux", true},
+		{"http://foobar.com?foo=bar", true},
+		{"http://www.xn--froschgrn-x9a.net/", true},
+		{"", false},
+		{"xyz://foobar.com", true},
+		{"invalid.", false},
+		{".com", false},
+		{"rtmp://foobar.com", true},
+		{"http://www.foo_bar.com/", true},
+		{"http://localhost:3000/", true},
+		{"http://foobar.com#baz=qux", true},
+		{"http://foobar.com/t$-_.+!*\\'(),", true},
+		{"http://www.foobar.com/~foobar", true},
+		{"http://www.-foobar.com/", true},
+		{"http://www.foo---bar.com/", true},
+		{"mailto:someone@example.com", true},
+		{"irc://irc.server.org/channel", true},
+		{"irc://#channel@network", true},
+		{"/abs/test/dir", true},
+		{"./rel/test/dir", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "uri")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d URI failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d URI failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "uri" {
+					t.Fatalf("Index: %d URI failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+
+	i := 1
+	PanicMatches(t, func() { validate.Var(i, "uri") }, "Bad field type int")
+}
+
+func TestOrTag(t *testing.T) {
+
+	validate := New()
+
+	s := "rgba(0,31,255,0.5)"
+	errs := validate.Var(s, "rgb|rgba")
+	Equal(t, errs, nil)
+
+	s = "rgba(0,31,255,0.5)"
+	errs = validate.Var(s, "rgb|rgba|len=18")
+	Equal(t, errs, nil)
+
+	s = "this ain't right"
+	errs = validate.Var(s, "rgb|rgba")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgb|rgba")
+
+	s = "this ain't right"
+	errs = validate.Var(s, "rgb|rgba|len=10")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgb|rgba|len=10")
+
+	s = "this is right"
+	errs = validate.Var(s, "rgb|rgba|len=13")
+	Equal(t, errs, nil)
+
+	s = ""
+	errs = validate.Var(s, "omitempty,rgb|rgba")
+	Equal(t, errs, nil)
+
+	s = "this is right, but a blank or isn't"
+
+	PanicMatches(t, func() { validate.Var(s, "rgb||len=13") }, "Invalid validation tag on field ''")
+	PanicMatches(t, func() { validate.Var(s, "rgb|rgbaa|len=13") }, "Undefined validation function 'rgbaa' on field ''")
+
+	v2 := New()
+	v2.RegisterTagNameFunc(func(fld reflect.StructField) string {
+
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type Colors struct {
+		Fav string `validate:"rgb|rgba" json:"fc"`
+	}
+
+	c := Colors{Fav: "this ain't right"}
+
+	err := v2.Struct(c)
+	NotEqual(t, err, nil)
+
+	errs = err.(ValidationErrors)
+	fe := getError(errs, "Colors.fc", "Colors.Fav")
+	NotEqual(t, fe, nil)
+}
+
+func TestHsla(t *testing.T) {
+
+	validate := New()
+
+	s := "hsla(360,100%,100%,1)"
+	errs := validate.Var(s, "hsla")
+	Equal(t, errs, nil)
+
+	s = "hsla(360,100%,100%,0.5)"
+	errs = validate.Var(s, "hsla")
+	Equal(t, errs, nil)
+
+	s = "hsla(0,0%,0%, 0)"
+	errs = validate.Var(s, "hsla")
+	Equal(t, errs, nil)
+
+	s = "hsl(361,100%,50%,1)"
+	errs = validate.Var(s, "hsla")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsla")
+
+	s = "hsl(361,100%,50%)"
+	errs = validate.Var(s, "hsla")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsla")
+
+	s = "hsla(361,100%,50%)"
+	errs = validate.Var(s, "hsla")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsla")
+
+	s = "hsla(360,101%,50%)"
+	errs = validate.Var(s, "hsla")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsla")
+
+	s = "hsla(360,100%,101%)"
+	errs = validate.Var(s, "hsla")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsla")
+
+	i := 1
+	validate.Var(i, "hsla")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsla")
+}
+
+func TestHsl(t *testing.T) {
+
+	validate := New()
+
+	s := "hsl(360,100%,50%)"
+	errs := validate.Var(s, "hsl")
+	Equal(t, errs, nil)
+
+	s = "hsl(0,0%,0%)"
+	errs = validate.Var(s, "hsl")
+	Equal(t, errs, nil)
+
+	s = "hsl(361,100%,50%)"
+	errs = validate.Var(s, "hsl")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsl")
+
+	s = "hsl(361,101%,50%)"
+	errs = validate.Var(s, "hsl")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsl")
+
+	s = "hsl(361,100%,101%)"
+	errs = validate.Var(s, "hsl")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsl")
+
+	s = "hsl(-10,100%,100%)"
+	errs = validate.Var(s, "hsl")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsl")
+
+	i := 1
+	errs = validate.Var(i, "hsl")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hsl")
+}
+
+func TestRgba(t *testing.T) {
+
+	validate := New()
+
+	s := "rgba(0,31,255,0.5)"
+	errs := validate.Var(s, "rgba")
+	Equal(t, errs, nil)
+
+	s = "rgba(0,31,255,0.12)"
+	errs = validate.Var(s, "rgba")
+	Equal(t, errs, nil)
+
+	s = "rgba(12%,55%,100%,0.12)"
+	errs = validate.Var(s, "rgba")
+	Equal(t, errs, nil)
+
+	s = "rgba( 0,  31, 255, 0.5)"
+	errs = validate.Var(s, "rgba")
+	Equal(t, errs, nil)
+
+	s = "rgba(12%,55,100%,0.12)"
+	errs = validate.Var(s, "rgba")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgba")
+
+	s = "rgb(0,  31, 255)"
+	errs = validate.Var(s, "rgba")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgba")
+
+	s = "rgb(1,349,275,0.5)"
+	errs = validate.Var(s, "rgba")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgba")
+
+	s = "rgb(01,31,255,0.5)"
+	errs = validate.Var(s, "rgba")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgba")
+
+	i := 1
+	errs = validate.Var(i, "rgba")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgba")
+}
+
+func TestRgb(t *testing.T) {
+
+	validate := New()
+
+	s := "rgb(0,31,255)"
+	errs := validate.Var(s, "rgb")
+	Equal(t, errs, nil)
+
+	s = "rgb(0,  31, 255)"
+	errs = validate.Var(s, "rgb")
+	Equal(t, errs, nil)
+
+	s = "rgb(10%,  50%, 100%)"
+	errs = validate.Var(s, "rgb")
+	Equal(t, errs, nil)
+
+	s = "rgb(10%,  50%, 55)"
+	errs = validate.Var(s, "rgb")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgb")
+
+	s = "rgb(1,349,275)"
+	errs = validate.Var(s, "rgb")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgb")
+
+	s = "rgb(01,31,255)"
+	errs = validate.Var(s, "rgb")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgb")
+
+	s = "rgba(0,31,255)"
+	errs = validate.Var(s, "rgb")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgb")
+
+	i := 1
+	errs = validate.Var(i, "rgb")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "rgb")
+}
+
+func TestEmail(t *testing.T) {
+
+	validate := New()
+
+	s := "test@mail.com"
+	errs := validate.Var(s, "email")
+	Equal(t, errs, nil)
+
+	s = "Dörte@Sörensen.example.com"
+	errs = validate.Var(s, "email")
+	Equal(t, errs, nil)
+
+	s = "θσερ@εχαμπλε.ψομ"
+	errs = validate.Var(s, "email")
+	Equal(t, errs, nil)
+
+	s = "юзер@екзампл.ком"
+	errs = validate.Var(s, "email")
+	Equal(t, errs, nil)
+
+	s = "उपयोगकर्ता@उदाहरण.कॉम"
+	errs = validate.Var(s, "email")
+	Equal(t, errs, nil)
+
+	s = "用户@例子.广告"
+	errs = validate.Var(s, "email")
+	Equal(t, errs, nil)
+
+	s = ""
+	errs = validate.Var(s, "email")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "email")
+
+	s = "test@email"
+	errs = validate.Var(s, "email")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "email")
+
+	s = "test@email."
+	errs = validate.Var(s, "email")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "email")
+
+	s = "@email.com"
+	errs = validate.Var(s, "email")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "email")
+
+	i := true
+	errs = validate.Var(i, "email")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "email")
+}
+
+func TestHexColor(t *testing.T) {
+
+	validate := New()
+
+	s := "#fff"
+	errs := validate.Var(s, "hexcolor")
+	Equal(t, errs, nil)
+
+	s = "#c2c2c2"
+	errs = validate.Var(s, "hexcolor")
+	Equal(t, errs, nil)
+
+	s = "fff"
+	errs = validate.Var(s, "hexcolor")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hexcolor")
+
+	s = "fffFF"
+	errs = validate.Var(s, "hexcolor")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hexcolor")
+
+	i := true
+	errs = validate.Var(i, "hexcolor")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hexcolor")
+}
+
+func TestHexadecimal(t *testing.T) {
+
+	validate := New()
+
+	s := "ff0044"
+	errs := validate.Var(s, "hexadecimal")
+	Equal(t, errs, nil)
+
+	s = "abcdefg"
+	errs = validate.Var(s, "hexadecimal")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hexadecimal")
+
+	i := true
+	errs = validate.Var(i, "hexadecimal")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "hexadecimal")
+}
+
+func TestNumber(t *testing.T) {
+
+	validate := New()
+
+	s := "1"
+	errs := validate.Var(s, "number")
+	Equal(t, errs, nil)
+
+	s = "+1"
+	errs = validate.Var(s, "number")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "number")
+
+	s = "-1"
+	errs = validate.Var(s, "number")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "number")
+
+	s = "1.12"
+	errs = validate.Var(s, "number")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "number")
+
+	s = "+1.12"
+	errs = validate.Var(s, "number")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "number")
+
+	s = "-1.12"
+	errs = validate.Var(s, "number")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "number")
+
+	s = "1."
+	errs = validate.Var(s, "number")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "number")
+
+	s = "1.o"
+	errs = validate.Var(s, "number")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "number")
+
+	i := 1
+	errs = validate.Var(i, "number")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "number")
+}
+
+func TestNumeric(t *testing.T) {
+
+	validate := New()
+
+	s := "1"
+	errs := validate.Var(s, "numeric")
+	Equal(t, errs, nil)
+
+	s = "+1"
+	errs = validate.Var(s, "numeric")
+	Equal(t, errs, nil)
+
+	s = "-1"
+	errs = validate.Var(s, "numeric")
+	Equal(t, errs, nil)
+
+	s = "1.12"
+	errs = validate.Var(s, "numeric")
+	Equal(t, errs, nil)
+
+	s = "+1.12"
+	errs = validate.Var(s, "numeric")
+	Equal(t, errs, nil)
+
+	s = "-1.12"
+	errs = validate.Var(s, "numeric")
+	Equal(t, errs, nil)
+
+	s = "1."
+	errs = validate.Var(s, "numeric")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "numeric")
+
+	s = "1.o"
+	errs = validate.Var(s, "numeric")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "numeric")
+
+	i := 1
+	errs = validate.Var(i, "numeric")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "numeric")
+}
+
+func TestAlphaNumeric(t *testing.T) {
+
+	validate := New()
+
+	s := "abcd123"
+	errs := validate.Var(s, "alphanum")
+	Equal(t, errs, nil)
+
+	s = "abc!23"
+	errs = validate.Var(s, "alphanum")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "alphanum")
+
+	errs = validate.Var(1, "alphanum")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "alphanum")
+}
+
+func TestAlpha(t *testing.T) {
+
+	validate := New()
+
+	s := "abcd"
+	errs := validate.Var(s, "alpha")
+	Equal(t, errs, nil)
+
+	s = "abc®"
+	errs = validate.Var(s, "alpha")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "alpha")
+
+	s = "abc÷"
+	errs = validate.Var(s, "alpha")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "alpha")
+
+	s = "abc1"
+	errs = validate.Var(s, "alpha")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "alpha")
+
+	s = "this is a test string"
+	errs = validate.Var(s, "alpha")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "alpha")
+
+	errs = validate.Var(1, "alpha")
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "", "", "", "", "alpha")
+
+}
+
+func TestStructStringValidation(t *testing.T) {
+
+	validate := New()
+
+	tSuccess := &TestString{
+		Required:  "Required",
+		Len:       "length==10",
+		Min:       "min=1",
+		Max:       "1234567890",
+		MinMax:    "12345",
+		Lt:        "012345678",
+		Lte:       "0123456789",
+		Gt:        "01234567890",
+		Gte:       "0123456789",
+		OmitEmpty: "",
+		Sub: &SubTest{
+			Test: "1",
+		},
+		SubIgnore: &SubTest{
+			Test: "",
+		},
+		Anonymous: struct {
+			A string `validate:"required"`
+		}{
+			A: "1",
+		},
+		Iface: &Impl{
+			F: "123",
+		},
+	}
+
+	errs := validate.Struct(tSuccess)
+	Equal(t, errs, nil)
+
+	tFail := &TestString{
+		Required:  "",
+		Len:       "",
+		Min:       "",
+		Max:       "12345678901",
+		MinMax:    "",
+		Lt:        "0123456789",
+		Lte:       "01234567890",
+		Gt:        "1",
+		Gte:       "1",
+		OmitEmpty: "12345678901",
+		Sub: &SubTest{
+			Test: "",
+		},
+		Anonymous: struct {
+			A string `validate:"required"`
+		}{
+			A: "",
+		},
+		Iface: &Impl{
+			F: "12",
+		},
+	}
+
+	errs = validate.Struct(tFail)
+
+	// Assert Top Level
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 13)
+
+	// Assert Fields
+	AssertError(t, errs, "TestString.Required", "TestString.Required", "Required", "Required", "required")
+	AssertError(t, errs, "TestString.Len", "TestString.Len", "Len", "Len", "len")
+	AssertError(t, errs, "TestString.Min", "TestString.Min", "Min", "Min", "min")
+	AssertError(t, errs, "TestString.Max", "TestString.Max", "Max", "Max", "max")
+	AssertError(t, errs, "TestString.MinMax", "TestString.MinMax", "MinMax", "MinMax", "min")
+	AssertError(t, errs, "TestString.Lt", "TestString.Lt", "Lt", "Lt", "lt")
+	AssertError(t, errs, "TestString.Lte", "TestString.Lte", "Lte", "Lte", "lte")
+	AssertError(t, errs, "TestString.Gt", "TestString.Gt", "Gt", "Gt", "gt")
+	AssertError(t, errs, "TestString.Gte", "TestString.Gte", "Gte", "Gte", "gte")
+	AssertError(t, errs, "TestString.OmitEmpty", "TestString.OmitEmpty", "OmitEmpty", "OmitEmpty", "max")
+
+	// Nested Struct Field Errs
+	AssertError(t, errs, "TestString.Anonymous.A", "TestString.Anonymous.A", "A", "A", "required")
+	AssertError(t, errs, "TestString.Sub.Test", "TestString.Sub.Test", "Test", "Test", "required")
+	AssertError(t, errs, "TestString.Iface.F", "TestString.Iface.F", "F", "F", "len")
+}
+
+func TestStructInt32Validation(t *testing.T) {
+
+	type TestInt32 struct {
+		Required  int `validate:"required"`
+		Len       int `validate:"len=10"`
+		Min       int `validate:"min=1"`
+		Max       int `validate:"max=10"`
+		MinMax    int `validate:"min=1,max=10"`
+		Lt        int `validate:"lt=10"`
+		Lte       int `validate:"lte=10"`
+		Gt        int `validate:"gt=10"`
+		Gte       int `validate:"gte=10"`
+		OmitEmpty int `validate:"omitempty,min=1,max=10"`
+	}
+
+	tSuccess := &TestInt32{
+		Required:  1,
+		Len:       10,
+		Min:       1,
+		Max:       10,
+		MinMax:    5,
+		Lt:        9,
+		Lte:       10,
+		Gt:        11,
+		Gte:       10,
+		OmitEmpty: 0,
+	}
+
+	validate := New()
+	errs := validate.Struct(tSuccess)
+	Equal(t, errs, nil)
+
+	tFail := &TestInt32{
+		Required:  0,
+		Len:       11,
+		Min:       -1,
+		Max:       11,
+		MinMax:    -1,
+		Lt:        10,
+		Lte:       11,
+		Gt:        10,
+		Gte:       9,
+		OmitEmpty: 11,
+	}
+
+	errs = validate.Struct(tFail)
+
+	// Assert Top Level
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 10)
+
+	// Assert Fields
+	AssertError(t, errs, "TestInt32.Required", "TestInt32.Required", "Required", "Required", "required")
+	AssertError(t, errs, "TestInt32.Len", "TestInt32.Len", "Len", "Len", "len")
+	AssertError(t, errs, "TestInt32.Min", "TestInt32.Min", "Min", "Min", "min")
+	AssertError(t, errs, "TestInt32.Max", "TestInt32.Max", "Max", "Max", "max")
+	AssertError(t, errs, "TestInt32.MinMax", "TestInt32.MinMax", "MinMax", "MinMax", "min")
+	AssertError(t, errs, "TestInt32.Lt", "TestInt32.Lt", "Lt", "Lt", "lt")
+	AssertError(t, errs, "TestInt32.Lte", "TestInt32.Lte", "Lte", "Lte", "lte")
+	AssertError(t, errs, "TestInt32.Gt", "TestInt32.Gt", "Gt", "Gt", "gt")
+	AssertError(t, errs, "TestInt32.Gte", "TestInt32.Gte", "Gte", "Gte", "gte")
+	AssertError(t, errs, "TestInt32.OmitEmpty", "TestInt32.OmitEmpty", "OmitEmpty", "OmitEmpty", "max")
+}
+
+func TestStructUint64Validation(t *testing.T) {
+
+	validate := New()
+
+	tSuccess := &TestUint64{
+		Required:  1,
+		Len:       10,
+		Min:       1,
+		Max:       10,
+		MinMax:    5,
+		OmitEmpty: 0,
+	}
+
+	errs := validate.Struct(tSuccess)
+	Equal(t, errs, nil)
+
+	tFail := &TestUint64{
+		Required:  0,
+		Len:       11,
+		Min:       0,
+		Max:       11,
+		MinMax:    0,
+		OmitEmpty: 11,
+	}
+
+	errs = validate.Struct(tFail)
+
+	// Assert Top Level
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 6)
+
+	// Assert Fields
+	AssertError(t, errs, "TestUint64.Required", "TestUint64.Required", "Required", "Required", "required")
+	AssertError(t, errs, "TestUint64.Len", "TestUint64.Len", "Len", "Len", "len")
+	AssertError(t, errs, "TestUint64.Min", "TestUint64.Min", "Min", "Min", "min")
+	AssertError(t, errs, "TestUint64.Max", "TestUint64.Max", "Max", "Max", "max")
+	AssertError(t, errs, "TestUint64.MinMax", "TestUint64.MinMax", "MinMax", "MinMax", "min")
+	AssertError(t, errs, "TestUint64.OmitEmpty", "TestUint64.OmitEmpty", "OmitEmpty", "OmitEmpty", "max")
+}
+
+func TestStructFloat64Validation(t *testing.T) {
+
+	validate := New()
+
+	tSuccess := &TestFloat64{
+		Required:  1,
+		Len:       10,
+		Min:       1,
+		Max:       10,
+		MinMax:    5,
+		OmitEmpty: 0,
+	}
+
+	errs := validate.Struct(tSuccess)
+	Equal(t, errs, nil)
+
+	tFail := &TestFloat64{
+		Required:  0,
+		Len:       11,
+		Min:       0,
+		Max:       11,
+		MinMax:    0,
+		OmitEmpty: 11,
+	}
+
+	errs = validate.Struct(tFail)
+
+	// Assert Top Level
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 6)
+
+	// Assert Fields
+	AssertError(t, errs, "TestFloat64.Required", "TestFloat64.Required", "Required", "Required", "required")
+	AssertError(t, errs, "TestFloat64.Len", "TestFloat64.Len", "Len", "Len", "len")
+	AssertError(t, errs, "TestFloat64.Min", "TestFloat64.Min", "Min", "Min", "min")
+	AssertError(t, errs, "TestFloat64.Max", "TestFloat64.Max", "Max", "Max", "max")
+	AssertError(t, errs, "TestFloat64.MinMax", "TestFloat64.MinMax", "MinMax", "MinMax", "min")
+	AssertError(t, errs, "TestFloat64.OmitEmpty", "TestFloat64.OmitEmpty", "OmitEmpty", "OmitEmpty", "max")
+}
+
+func TestStructSliceValidation(t *testing.T) {
+
+	validate := New()
+
+	tSuccess := &TestSlice{
+		Required:  []int{1},
+		Len:       []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 0},
+		Min:       []int{1, 2},
+		Max:       []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 0},
+		MinMax:    []int{1, 2, 3, 4, 5},
+		OmitEmpty: nil,
+	}
+
+	errs := validate.Struct(tSuccess)
+	Equal(t, errs, nil)
+
+	tFail := &TestSlice{
+		Required:  nil,
+		Len:       []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1},
+		Min:       []int{},
+		Max:       []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1},
+		MinMax:    []int{},
+		OmitEmpty: []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1},
+	}
+
+	errs = validate.Struct(tFail)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 6)
+
+	// Assert Field Errors
+	AssertError(t, errs, "TestSlice.Required", "TestSlice.Required", "Required", "Required", "required")
+	AssertError(t, errs, "TestSlice.Len", "TestSlice.Len", "Len", "Len", "len")
+	AssertError(t, errs, "TestSlice.Min", "TestSlice.Min", "Min", "Min", "min")
+	AssertError(t, errs, "TestSlice.Max", "TestSlice.Max", "Max", "Max", "max")
+	AssertError(t, errs, "TestSlice.MinMax", "TestSlice.MinMax", "MinMax", "MinMax", "min")
+	AssertError(t, errs, "TestSlice.OmitEmpty", "TestSlice.OmitEmpty", "OmitEmpty", "OmitEmpty", "max")
+
+	fe := getError(errs, "TestSlice.Len", "TestSlice.Len")
+	NotEqual(t, fe, nil)
+	Equal(t, fe.Field(), "Len")
+	Equal(t, fe.StructField(), "Len")
+	Equal(t, fe.Namespace(), "TestSlice.Len")
+	Equal(t, fe.StructNamespace(), "TestSlice.Len")
+	Equal(t, fe.Tag(), "len")
+	Equal(t, fe.ActualTag(), "len")
+	Equal(t, fe.Param(), "10")
+	Equal(t, fe.Kind(), reflect.Slice)
+	Equal(t, fe.Type(), reflect.TypeOf([]int{}))
+
+	_, ok := fe.Value().([]int)
+	Equal(t, ok, true)
+
+}
+
+func TestInvalidStruct(t *testing.T) {
+
+	validate := New()
+
+	s := &SubTest{
+		Test: "1",
+	}
+
+	err := validate.Struct(s.Test)
+	NotEqual(t, err, nil)
+	Equal(t, err.Error(), "validator: (nil string)")
+
+	err = validate.Struct(nil)
+	NotEqual(t, err, nil)
+	Equal(t, err.Error(), "validator: (nil)")
+
+	err = validate.StructPartial(nil, "SubTest.Test")
+	NotEqual(t, err, nil)
+	Equal(t, err.Error(), "validator: (nil)")
+
+	err = validate.StructExcept(nil, "SubTest.Test")
+	NotEqual(t, err, nil)
+	Equal(t, err.Error(), "validator: (nil)")
+}
+
+func TestInvalidValidatorFunction(t *testing.T) {
+
+	validate := New()
+
+	s := &SubTest{
+		Test: "1",
+	}
+
+	PanicMatches(t, func() { validate.Var(s.Test, "zzxxBadFunction") }, "Undefined validation function 'zzxxBadFunction' on field ''")
+}
+
+func TestCustomFieldName(t *testing.T) {
+
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("schema"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type A struct {
+		B string `schema:"b" validate:"required"`
+		C string `schema:"c" validate:"required"`
+		D []bool `schema:"d" validate:"required"`
+		E string `schema:"-" validate:"required"`
+	}
+
+	a := &A{}
+
+	err := validate.Struct(a)
+	NotEqual(t, err, nil)
+
+	errs := err.(ValidationErrors)
+	Equal(t, len(errs), 4)
+	Equal(t, getError(errs, "A.b", "A.B").Field(), "b")
+	Equal(t, getError(errs, "A.c", "A.C").Field(), "c")
+	Equal(t, getError(errs, "A.d", "A.D").Field(), "d")
+	Equal(t, getError(errs, "A.E", "A.E").Field(), "E")
+
+	v2 := New()
+	err = v2.Struct(a)
+	NotEqual(t, err, nil)
+
+	errs = err.(ValidationErrors)
+	Equal(t, len(errs), 4)
+	Equal(t, getError(errs, "A.B", "A.B").Field(), "B")
+	Equal(t, getError(errs, "A.C", "A.C").Field(), "C")
+	Equal(t, getError(errs, "A.D", "A.D").Field(), "D")
+	Equal(t, getError(errs, "A.E", "A.E").Field(), "E")
+}
+
+func TestMutipleRecursiveExtractStructCache(t *testing.T) {
+
+	validate := New()
+
+	type Recursive struct {
+		Field *string `validate:"required,len=5,ne=string"`
+	}
+
+	var test Recursive
+
+	current := reflect.ValueOf(test)
+	name := "Recursive"
+	proceed := make(chan struct{})
+
+	sc := validate.extractStructCache(current, name)
+	ptr := fmt.Sprintf("%p", sc)
+
+	for i := 0; i < 100; i++ {
+
+		go func() {
+			<-proceed
+			sc := validate.extractStructCache(current, name)
+			Equal(t, ptr, fmt.Sprintf("%p", sc))
+		}()
+	}
+
+	close(proceed)
+}
+
+// Thanks @robbrockbank, see https://github.com/go-playground/validator/issues/249
+func TestPointerAndOmitEmpty(t *testing.T) {
+
+	validate := New()
+
+	type Test struct {
+		MyInt *int `validate:"omitempty,gte=2,lte=255"`
+	}
+
+	val1 := 0
+	val2 := 256
+
+	t1 := Test{MyInt: &val1} // This should fail validation on gte because value is 0
+	t2 := Test{MyInt: &val2} // This should fail validate on lte because value is 256
+	t3 := Test{MyInt: nil}   // This should succeed validation because pointer is nil
+
+	errs := validate.Struct(t1)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.MyInt", "Test.MyInt", "MyInt", "MyInt", "gte")
+
+	errs = validate.Struct(t2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "Test.MyInt", "Test.MyInt", "MyInt", "MyInt", "lte")
+
+	errs = validate.Struct(t3)
+	Equal(t, errs, nil)
+
+	type TestIface struct {
+		MyInt interface{} `validate:"omitempty,gte=2,lte=255"`
+	}
+
+	ti1 := TestIface{MyInt: &val1} // This should fail validation on gte because value is 0
+	ti2 := TestIface{MyInt: &val2} // This should fail validate on lte because value is 256
+	ti3 := TestIface{MyInt: nil}   // This should succeed validation because pointer is nil
+
+	errs = validate.Struct(ti1)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestIface.MyInt", "TestIface.MyInt", "MyInt", "MyInt", "gte")
+
+	errs = validate.Struct(ti2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestIface.MyInt", "TestIface.MyInt", "MyInt", "MyInt", "lte")
+
+	errs = validate.Struct(ti3)
+	Equal(t, errs, nil)
+}
+
+func TestRequired(t *testing.T) {
+
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type Test struct {
+		Value interface{} `validate:"required"`
+	}
+
+	var test Test
+
+	err := validate.Struct(test)
+	NotEqual(t, err, nil)
+	AssertError(t, err.(ValidationErrors), "Test.Value", "Test.Value", "Value", "Value", "required")
+}
+
+func TestTranslations(t *testing.T) {
+	en := en.New()
+	uni := ut.New(en, en, fr.New())
+
+	trans, _ := uni.GetTranslator("en")
+	fr, _ := uni.GetTranslator("fr")
+
+	validate := New()
+	err := validate.RegisterTranslation("required", trans,
+		func(ut ut.Translator) (err error) {
+
+			// using this stype because multiple translation may have to be added for the full translation
+			if err = ut.Add("required", "{0} is a required field", false); err != nil {
+				return
+			}
+
+			return
+
+		}, func(ut ut.Translator, fe FieldError) string {
+
+			t, err := ut.T(fe.Tag(), fe.Field())
+			if err != nil {
+				fmt.Printf("warning: error translating FieldError: %#v", fe.(*fieldError))
+				return fe.(*fieldError).Error()
+			}
+
+			return t
+		})
+	Equal(t, err, nil)
+
+	err = validate.RegisterTranslation("required", fr,
+		func(ut ut.Translator) (err error) {
+
+			// using this stype because multiple translation may have to be added for the full translation
+			if err = ut.Add("required", "{0} est un champ obligatoire", false); err != nil {
+				return
+			}
+
+			return
+
+		}, func(ut ut.Translator, fe FieldError) string {
+
+			t, err := ut.T(fe.Tag(), fe.Field())
+			if err != nil {
+				fmt.Printf("warning: error translating FieldError: %#v", fe.(*fieldError))
+				return fe.(*fieldError).Error()
+			}
+
+			return t
+		})
+
+	Equal(t, err, nil)
+
+	type Test struct {
+		Value interface{} `validate:"required"`
+	}
+
+	var test Test
+
+	err = validate.Struct(test)
+	NotEqual(t, err, nil)
+
+	errs := err.(ValidationErrors)
+	Equal(t, len(errs), 1)
+
+	fe := errs[0]
+	Equal(t, fe.Tag(), "required")
+	Equal(t, fe.Namespace(), "Test.Value")
+	Equal(t, fe.Translate(trans), fmt.Sprintf("%s is a required field", fe.Field()))
+	Equal(t, fe.Translate(fr), fmt.Sprintf("%s est un champ obligatoire", fe.Field()))
+
+	nl := nl.New()
+	uni2 := ut.New(nl, nl)
+	trans2, _ := uni2.GetTranslator("nl")
+	Equal(t, fe.Translate(trans2), "Key: 'Test.Value' Error:Field validation for 'Value' failed on the 'required' tag")
+
+	terrs := errs.Translate(trans)
+	Equal(t, len(terrs), 1)
+
+	v, ok := terrs["Test.Value"]
+	Equal(t, ok, true)
+	Equal(t, v, fmt.Sprintf("%s is a required field", fe.Field()))
+
+	terrs = errs.Translate(fr)
+	Equal(t, len(terrs), 1)
+
+	v, ok = terrs["Test.Value"]
+	Equal(t, ok, true)
+	Equal(t, v, fmt.Sprintf("%s est un champ obligatoire", fe.Field()))
+
+	type Test2 struct {
+		Value string `validate:"gt=1"`
+	}
+
+	var t2 Test2
+
+	err = validate.Struct(t2)
+	NotEqual(t, err, nil)
+
+	errs = err.(ValidationErrors)
+	Equal(t, len(errs), 1)
+
+	fe = errs[0]
+	Equal(t, fe.Tag(), "gt")
+	Equal(t, fe.Namespace(), "Test2.Value")
+	Equal(t, fe.Translate(trans), "Key: 'Test2.Value' Error:Field validation for 'Value' failed on the 'gt' tag")
+}
+
+func TestTranslationErrors(t *testing.T) {
+
+	en := en.New()
+	uni := ut.New(en, en, fr.New())
+
+	trans, _ := uni.GetTranslator("en")
+	trans.Add("required", "{0} is a required field", false) // using translator outside of validator also
+
+	validate := New()
+	err := validate.RegisterTranslation("required", trans,
+		func(ut ut.Translator) (err error) {
+
+			// using this stype because multiple translation may have to be added for the full translation
+			if err = ut.Add("required", "{0} is a required field", false); err != nil {
+				return
+			}
+
+			return
+
+		}, func(ut ut.Translator, fe FieldError) string {
+
+			t, err := ut.T(fe.Tag(), fe.Field())
+			if err != nil {
+				fmt.Printf("warning: error translating FieldError: %#v", fe.(*fieldError))
+				return fe.(*fieldError).Error()
+			}
+
+			return t
+		})
+
+	NotEqual(t, err, nil)
+	Equal(t, err.Error(), "error: conflicting key 'required' rule 'Unknown' with text '{0} is a required field' for locale 'en', value being ignored")
+}
+
+func TestStructFiltered(t *testing.T) {
+
+	p1 := func(ns []byte) bool {
+		if bytes.HasSuffix(ns, []byte("NoTag")) || bytes.HasSuffix(ns, []byte("Required")) {
+			return false
+		}
+
+		return true
+	}
+
+	p2 := func(ns []byte) bool {
+		if bytes.HasSuffix(ns, []byte("SubSlice[0].Test")) ||
+			bytes.HasSuffix(ns, []byte("SubSlice[0]")) ||
+			bytes.HasSuffix(ns, []byte("SubSlice")) ||
+			bytes.HasSuffix(ns, []byte("Sub")) ||
+			bytes.HasSuffix(ns, []byte("SubIgnore")) ||
+			bytes.HasSuffix(ns, []byte("Anonymous")) ||
+			bytes.HasSuffix(ns, []byte("Anonymous.A")) {
+			return false
+		}
+
+		return true
+	}
+
+	p3 := func(ns []byte) bool {
+		return !bytes.HasSuffix(ns, []byte("SubTest.Test"))
+	}
+
+	// p4 := []string{
+	// 	"A",
+	// }
+
+	tPartial := &TestPartial{
+		NoTag:    "NoTag",
+		Required: "Required",
+
+		SubSlice: []*SubTest{
+			{
+
+				Test: "Required",
+			},
+			{
+
+				Test: "Required",
+			},
+		},
+
+		Sub: &SubTest{
+			Test: "1",
+		},
+		SubIgnore: &SubTest{
+			Test: "",
+		},
+		Anonymous: struct {
+			A             string     `validate:"required"`
+			ASubSlice     []*SubTest `validate:"required,dive"`
+			SubAnonStruct []struct {
+				Test      string `validate:"required"`
+				OtherTest string `validate:"required"`
+			} `validate:"required,dive"`
+		}{
+			A: "1",
+			ASubSlice: []*SubTest{
+				{
+					Test: "Required",
+				},
+				{
+					Test: "Required",
+				},
+			},
+
+			SubAnonStruct: []struct {
+				Test      string `validate:"required"`
+				OtherTest string `validate:"required"`
+			}{
+				{"Required", "RequiredOther"},
+				{"Required", "RequiredOther"},
+			},
+		},
+	}
+
+	validate := New()
+
+	// the following should all return no errors as everything is valid in
+	// the default state
+	errs := validate.StructFilteredCtx(context.Background(), tPartial, p1)
+	Equal(t, errs, nil)
+
+	errs = validate.StructFiltered(tPartial, p2)
+	Equal(t, errs, nil)
+
+	// this isn't really a robust test, but is ment to illustrate the ANON CASE below
+	errs = validate.StructFiltered(tPartial.SubSlice[0], p3)
+	Equal(t, errs, nil)
+
+	// mod tParial for required feild and re-test making sure invalid fields are NOT required:
+	tPartial.Required = ""
+
+	// inversion and retesting Partial to generate failures:
+	errs = validate.StructFiltered(tPartial, p1)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.Required", "TestPartial.Required", "Required", "Required", "required")
+
+	// reset Required field, and set nested struct
+	tPartial.Required = "Required"
+	tPartial.Anonymous.A = ""
+
+	// will pass as unset feilds is not going to be tested
+	errs = validate.StructFiltered(tPartial, p1)
+	Equal(t, errs, nil)
+
+	// will fail as unset feild is tested
+	errs = validate.StructFiltered(tPartial, p2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.Anonymous.A", "TestPartial.Anonymous.A", "A", "A", "required")
+
+	// reset nested struct and unset struct in slice
+	tPartial.Anonymous.A = "Required"
+	tPartial.SubSlice[0].Test = ""
+
+	// these will pass as unset item is NOT tested
+	errs = validate.StructFiltered(tPartial, p1)
+	Equal(t, errs, nil)
+
+	errs = validate.StructFiltered(tPartial, p2)
+	NotEqual(t, errs, nil)
+	AssertError(t, errs, "TestPartial.SubSlice[0].Test", "TestPartial.SubSlice[0].Test", "Test", "Test", "required")
+	Equal(t, len(errs.(ValidationErrors)), 1)
+
+	// Unset second slice member concurrently to test dive behavior:
+	tPartial.SubSlice[1].Test = ""
+
+	errs = validate.StructFiltered(tPartial, p1)
+	Equal(t, errs, nil)
+
+	errs = validate.StructFiltered(tPartial, p2)
+	NotEqual(t, errs, nil)
+	Equal(t, len(errs.(ValidationErrors)), 1)
+	AssertError(t, errs, "TestPartial.SubSlice[0].Test", "TestPartial.SubSlice[0].Test", "Test", "Test", "required")
+
+	// reset struct in slice, and unset struct in slice in unset posistion
+	tPartial.SubSlice[0].Test = "Required"
+
+	// these will pass as the unset item is NOT tested
+	errs = validate.StructFiltered(tPartial, p1)
+	Equal(t, errs, nil)
+
+	errs = validate.StructFiltered(tPartial, p2)
+	Equal(t, errs, nil)
+
+	tPartial.SubSlice[1].Test = "Required"
+	tPartial.Anonymous.SubAnonStruct[0].Test = ""
+
+	// these will pass as the unset item is NOT tested
+	errs = validate.StructFiltered(tPartial, p1)
+	Equal(t, errs, nil)
+
+	errs = validate.StructFiltered(tPartial, p2)
+	Equal(t, errs, nil)
+
+	dt := time.Now()
+	err := validate.StructFiltered(&dt, func(ns []byte) bool { return true })
+	NotEqual(t, err, nil)
+	Equal(t, err.Error(), "validator: (nil *time.Time)")
+}
+
+func TestRequiredPtr(t *testing.T) {
+
+	type Test struct {
+		Bool *bool `validate:"required"`
+	}
+
+	validate := New()
+
+	f := false
+
+	test := Test{
+		Bool: &f,
+	}
+
+	err := validate.Struct(test)
+	Equal(t, err, nil)
+
+	tr := true
+
+	test.Bool = &tr
+
+	err = validate.Struct(test)
+	Equal(t, err, nil)
+
+	test.Bool = nil
+
+	err = validate.Struct(test)
+	NotEqual(t, err, nil)
+
+	errs, ok := err.(ValidationErrors)
+	Equal(t, ok, true)
+	Equal(t, len(errs), 1)
+	AssertError(t, errs, "Test.Bool", "Test.Bool", "Bool", "Bool", "required")
+
+	type Test2 struct {
+		Bool bool `validate:"required"`
+	}
+
+	var test2 Test2
+
+	err = validate.Struct(test2)
+	NotEqual(t, err, nil)
+
+	errs, ok = err.(ValidationErrors)
+	Equal(t, ok, true)
+	Equal(t, len(errs), 1)
+	AssertError(t, errs, "Test2.Bool", "Test2.Bool", "Bool", "Bool", "required")
+
+	test2.Bool = true
+
+	err = validate.Struct(test2)
+	Equal(t, err, nil)
+
+	type Test3 struct {
+		Arr []string `validate:"required"`
+	}
+
+	var test3 Test3
+
+	err = validate.Struct(test3)
+	NotEqual(t, err, nil)
+
+	errs, ok = err.(ValidationErrors)
+	Equal(t, ok, true)
+	Equal(t, len(errs), 1)
+	AssertError(t, errs, "Test3.Arr", "Test3.Arr", "Arr", "Arr", "required")
+
+	test3.Arr = make([]string, 0)
+
+	err = validate.Struct(test3)
+	Equal(t, err, nil)
+
+	type Test4 struct {
+		Arr *[]string `validate:"required"` // I know I know pointer to array, just making sure validation works as expected...
+	}
+
+	var test4 Test4
+
+	err = validate.Struct(test4)
+	NotEqual(t, err, nil)
+
+	errs, ok = err.(ValidationErrors)
+	Equal(t, ok, true)
+	Equal(t, len(errs), 1)
+	AssertError(t, errs, "Test4.Arr", "Test4.Arr", "Arr", "Arr", "required")
+
+	arr := make([]string, 0)
+	test4.Arr = &arr
+
+	err = validate.Struct(test4)
+	Equal(t, err, nil)
+}
+
+func TestAlphaUnicodeValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"abc", true},
+		{"this is a test string", false},
+		{"这是一个测试字符串", true},
+		{"123", false},
+		{"<>@;.-=", false},
+		{"ひらがな・カタカナ、．漢字", false},
+		{"あいうえおfoobar", true},
+		{"test＠example.com", false},
+		{"1234abcDE", false},
+		{"ｶﾀｶﾅ", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "alphaunicode")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Alpha Unicode failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Alpha Unicode failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "alphaunicode" {
+					t.Fatalf("Index: %d Alpha Unicode failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestAlphanumericUnicodeValidation(t *testing.T) {
+
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"", false},
+		{"abc", true},
+		{"this is a test string", false},
+		{"这是一个测试字符串", true},
+		{"\u0031\u0032\u0033", true}, // unicode 5
+		{"123", true},
+		{"<>@;.-=", false},
+		{"ひらがな・カタカナ、．漢字", false},
+		{"あいうえおfoobar", true},
+		{"test＠example.com", false},
+		{"1234abcDE", true},
+		{"ｶﾀｶﾅ", true},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "alphanumunicode")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Alphanum Unicode failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d Alphanum Unicode failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "alphanumunicode" {
+					t.Fatalf("Index: %d Alphanum Unicode failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestArrayStructNamespace(t *testing.T) {
+
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type child struct {
+		Name string `json:"name" validate:"required"`
+	}
+	var input struct {
+		Children []child `json:"children" validate:"required,gt=0,dive"`
+	}
+	input.Children = []child{{"ok"}, {""}}
+
+	errs := validate.Struct(input)
+	NotEqual(t, errs, nil)
+
+	ve := errs.(ValidationErrors)
+	Equal(t, len(ve), 1)
+	AssertError(t, errs, "children[1].name", "Children[1].Name", "name", "Name", "required")
+}
+
+func TestMapStructNamespace(t *testing.T) {
+
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type child struct {
+		Name string `json:"name" validate:"required"`
+	}
+	var input struct {
+		Children map[int]child `json:"children" validate:"required,gt=0,dive"`
+	}
+	input.Children = map[int]child{
+		0: {Name: "ok"},
+		1: {Name: ""},
+	}
+
+	errs := validate.Struct(input)
+	NotEqual(t, errs, nil)
+
+	ve := errs.(ValidationErrors)
+	Equal(t, len(ve), 1)
+	AssertError(t, errs, "children[1].name", "Children[1].Name", "name", "Name", "required")
+}
+
+func TestFieldLevelName(t *testing.T) {
+	type Test struct {
+		String string            `validate:"custom1"      json:"json1"`
+		Array  []string          `validate:"dive,custom2" json:"json2"`
+		Map    map[string]string `validate:"dive,custom3" json:"json3"`
+		Array2 []string          `validate:"custom4"      json:"json4"`
+		Map2   map[string]string `validate:"custom5"      json:"json5"`
+	}
+
+	var res1, res2, res3, res4, res5, alt1, alt2, alt3, alt4, alt5 string
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+	validate.RegisterValidation("custom1", func(fl FieldLevel) bool {
+		res1 = fl.FieldName()
+		alt1 = fl.StructFieldName()
+		return true
+	})
+	validate.RegisterValidation("custom2", func(fl FieldLevel) bool {
+		res2 = fl.FieldName()
+		alt2 = fl.StructFieldName()
+		return true
+	})
+	validate.RegisterValidation("custom3", func(fl FieldLevel) bool {
+		res3 = fl.FieldName()
+		alt3 = fl.StructFieldName()
+		return true
+	})
+	validate.RegisterValidation("custom4", func(fl FieldLevel) bool {
+		res4 = fl.FieldName()
+		alt4 = fl.StructFieldName()
+		return true
+	})
+	validate.RegisterValidation("custom5", func(fl FieldLevel) bool {
+		res5 = fl.FieldName()
+		alt5 = fl.StructFieldName()
+		return true
+	})
+
+	test := Test{
+		String: "test",
+		Array:  []string{"1"},
+		Map:    map[string]string{"test": "test"},
+	}
+
+	errs := validate.Struct(test)
+	Equal(t, errs, nil)
+	Equal(t, res1, "json1")
+	Equal(t, alt1, "String")
+	Equal(t, res2, "json2[0]")
+	Equal(t, alt2, "Array[0]")
+	Equal(t, res3, "json3[test]")
+	Equal(t, alt3, "Map[test]")
+	Equal(t, res4, "json4")
+	Equal(t, alt4, "Array2")
+	Equal(t, res5, "json5")
+	Equal(t, alt5, "Map2")
+}
+
+func TestValidateStructRegisterCtx(t *testing.T) {
+
+	var ctxVal string
+
+	fnCtx := func(ctx context.Context, fl FieldLevel) bool {
+		ctxVal = ctx.Value(&ctxVal).(string)
+		return true
+	}
+
+	var ctxSlVal string
+	slFn := func(ctx context.Context, sl StructLevel) {
+		ctxSlVal = ctx.Value(&ctxSlVal).(string)
+	}
+
+	type Test struct {
+		Field string `validate:"val"`
+	}
+
+	var tst Test
+
+	validate := New()
+	validate.RegisterValidationCtx("val", fnCtx)
+	validate.RegisterStructValidationCtx(slFn, Test{})
+
+	ctx := context.WithValue(context.Background(), &ctxVal, "testval")
+	ctx = context.WithValue(ctx, &ctxSlVal, "slVal")
+	errs := validate.StructCtx(ctx, tst)
+	Equal(t, errs, nil)
+	Equal(t, ctxVal, "testval")
+	Equal(t, ctxSlVal, "slVal")
+}
+
+func TestHostnameValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"test.example.com", true},
+		{"example.com", true},
+		{"example24.com", true},
+		{"test.example24.com", true},
+		{"test24.example24.com", true},
+		{"example", true},
+		{"test.example.com.", false},
+		{"example.com.", false},
+		{"example24.com.", false},
+		{"test.example24.com.", false},
+		{"test24.example24.com.", false},
+		{"example.", false},
+		{"192.168.0.1", false},
+		{"email@example.com", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652", false},
+		{"2001:cdba:0:0:0:0:3257:9652", false},
+		{"2001:cdba::3257:9652", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "hostname")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d hostname failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d hostname failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "hostname" {
+					t.Fatalf("Index: %d hostname failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestFQDNValidation(t *testing.T) {
+	tests := []struct {
+		param    string
+		expected bool
+	}{
+		{"test.example.com", true},
+		{"example.com", true},
+		{"example24.com", true},
+		{"test.example24.com", true},
+		{"test24.example24.com", true},
+		{"test.example.com.", true},
+		{"example.com.", true},
+		{"example24.com.", true},
+		{"test.example24.com.", true},
+		{"test24.example24.com.", true},
+		{"test24.example24.com..", false},
+		{"example", false},
+		{"192.168.0.1", false},
+		{"email@example.com", false},
+		{"2001:cdba:0000:0000:0000:0000:3257:9652", false},
+		{"2001:cdba:0:0:0:0:3257:9652", false},
+		{"2001:cdba::3257:9652", false},
+		{"", false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "fqdn")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d fqdn failed Error: %s", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d fqdn failed Error: %s", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "fqdn" {
+					t.Fatalf("Index: %d fqdn failed Error: %s", i, errs)
+				}
+			}
+		}
+	}
+}
+
+func TestIsDefault(t *testing.T) {
+
+	validate := New()
+
+	type Inner struct {
+		String string `validate:"isdefault"`
+	}
+	type Test struct {
+		String string `validate:"isdefault"`
+		Inner  *Inner `validate:"isdefault"`
+	}
+
+	var tt Test
+
+	errs := validate.Struct(tt)
+	Equal(t, errs, nil)
+
+	tt.Inner = &Inner{String: ""}
+	errs = validate.Struct(tt)
+	NotEqual(t, errs, nil)
+
+	fe := errs.(ValidationErrors)[0]
+	Equal(t, fe.Field(), "Inner")
+	Equal(t, fe.Namespace(), "Test.Inner")
+	Equal(t, fe.Tag(), "isdefault")
+
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type Inner2 struct {
+		String string `validate:"isdefault"`
+	}
+
+	type Test2 struct {
+		Inner Inner2 `validate:"isdefault" json:"inner"`
+	}
+
+	var t2 Test2
+	errs = validate.Struct(t2)
+	Equal(t, errs, nil)
+
+	t2.Inner.String = "Changed"
+	errs = validate.Struct(t2)
+	NotEqual(t, errs, nil)
+
+	fe = errs.(ValidationErrors)[0]
+	Equal(t, fe.Field(), "inner")
+	Equal(t, fe.Namespace(), "Test2.inner")
+	Equal(t, fe.Tag(), "isdefault")
+}
+
+func TestUniqueValidation(t *testing.T) {
+	tests := []struct {
+		param    interface{}
+		expected bool
+	}{
+		{[]string{"a", "b"}, true},
+		{[]int{1, 2}, true},
+		{[]float64{1, 2}, true},
+		{[]interface{}{"a", "b"}, true},
+		{[]interface{}{"a", 1}, true},
+		{[]float64{1, 1}, false},
+		{[]int{1, 1}, false},
+		{[]string{"a", "a"}, false},
+		{[]interface{}{"a", "a"}, false},
+		{[]interface{}{"a", 1, "b", 1}, false},
+	}
+
+	validate := New()
+
+	for i, test := range tests {
+
+		errs := validate.Var(test.param, "unique")
+
+		if test.expected {
+			if !IsEqual(errs, nil) {
+				t.Fatalf("Index: %d unique failed Error: %v", i, errs)
+			}
+		} else {
+			if IsEqual(errs, nil) {
+				t.Fatalf("Index: %d unique failed Error: %v", i, errs)
+			} else {
+				val := getError(errs, "", "")
+				if val.Tag() != "unique" {
+					t.Fatalf("Index: %d unique failed Error: %v", i, errs)
+				}
+			}
+		}
+	}
+	PanicMatches(t, func() { validate.Var(1.0, "unique") }, "Bad field type float64")
+}
+
+func TestKeys(t *testing.T) {
+
+	type Test struct {
+		Test1 map[string]string `validate:"gt=0,dive,keys,eq=testkey,endkeys,eq=testval" json:"test1"`
+		Test2 map[int]int       `validate:"gt=0,dive,keys,eq=3,endkeys,eq=4"             json:"test2"`
+		Test3 map[int]int       `validate:"gt=0,dive,keys,eq=3,endkeys"                  json:"test3"`
+	}
+
+	var tst Test
+
+	validate := New()
+	err := validate.Struct(tst)
+	NotEqual(t, err, nil)
+	Equal(t, len(err.(ValidationErrors)), 3)
+	AssertError(t, err.(ValidationErrors), "Test.Test1", "Test.Test1", "Test1", "Test1", "gt")
+	AssertError(t, err.(ValidationErrors), "Test.Test2", "Test.Test2", "Test2", "Test2", "gt")
+	AssertError(t, err.(ValidationErrors), "Test.Test3", "Test.Test3", "Test3", "Test3", "gt")
+
+	tst.Test1 = map[string]string{
+		"testkey": "testval",
+	}
+
+	tst.Test2 = map[int]int{
+		3: 4,
+	}
+
+	tst.Test3 = map[int]int{
+		3: 4,
+	}
+
+	err = validate.Struct(tst)
+	Equal(t, err, nil)
+
+	tst.Test1["badtestkey"] = "badtestvalue"
+	tst.Test2[10] = 11
+
+	err = validate.Struct(tst)
+	NotEqual(t, err, nil)
+
+	errs := err.(ValidationErrors)
+
+	Equal(t, len(errs), 4)
+
+	AssertDeepError(t, errs, "Test.Test1[badtestkey]", "Test.Test1[badtestkey]", "Test1[badtestkey]", "Test1[badtestkey]", "eq", "eq")
+	AssertDeepError(t, errs, "Test.Test1[badtestkey]", "Test.Test1[badtestkey]", "Test1[badtestkey]", "Test1[badtestkey]", "eq", "eq")
+	AssertDeepError(t, errs, "Test.Test2[10]", "Test.Test2[10]", "Test2[10]", "Test2[10]", "eq", "eq")
+	AssertDeepError(t, errs, "Test.Test2[10]", "Test.Test2[10]", "Test2[10]", "Test2[10]", "eq", "eq")
+
+	type Test2 struct {
+		NestedKeys map[[1]string]string `validate:"gt=0,dive,keys,dive,eq=innertestkey,endkeys,eq=outertestval"`
+	}
+
+	var tst2 Test2
+
+	err = validate.Struct(tst2)
+	NotEqual(t, err, nil)
+	Equal(t, len(err.(ValidationErrors)), 1)
+	AssertError(t, err.(ValidationErrors), "Test2.NestedKeys", "Test2.NestedKeys", "NestedKeys", "NestedKeys", "gt")
+
+	tst2.NestedKeys = map[[1]string]string{
+		[1]string{"innertestkey"}: "outertestval",
+	}
+
+	err = validate.Struct(tst2)
+	Equal(t, err, nil)
+
+	tst2.NestedKeys[[1]string{"badtestkey"}] = "badtestvalue"
+
+	err = validate.Struct(tst2)
+	NotEqual(t, err, nil)
+
+	errs = err.(ValidationErrors)
+
+	Equal(t, len(errs), 2)
+	AssertDeepError(t, errs, "Test2.NestedKeys[[badtestkey]][0]", "Test2.NestedKeys[[badtestkey]][0]", "NestedKeys[[badtestkey]][0]", "NestedKeys[[badtestkey]][0]", "eq", "eq")
+	AssertDeepError(t, errs, "Test2.NestedKeys[[badtestkey]]", "Test2.NestedKeys[[badtestkey]]", "NestedKeys[[badtestkey]]", "NestedKeys[[badtestkey]]", "eq", "eq")
+
+	// test bad tag definitions
+
+	PanicMatches(t, func() { validate.Var(map[string]string{"key": "val"}, "endkeys,dive,eq=val") }, "'endkeys' tag encountered without a corresponding 'keys' tag")
+	PanicMatches(t, func() { validate.Var(1, "keys,eq=1,endkeys") }, "'keys' tag must be immediately preceeded by the 'dive' tag")
+
+	// test custom tag name
+	validate = New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+		return name
+	})
+
+	err = validate.Struct(tst)
+	NotEqual(t, err, nil)
+
+	errs = err.(ValidationErrors)
+
+	Equal(t, len(errs), 4)
+
+	AssertDeepError(t, errs, "Test.test1[badtestkey]", "Test.Test1[badtestkey]", "test1[badtestkey]", "Test1[badtestkey]", "eq", "eq")
+	AssertDeepError(t, errs, "Test.test1[badtestkey]", "Test.Test1[badtestkey]", "test1[badtestkey]", "Test1[badtestkey]", "eq", "eq")
+	AssertDeepError(t, errs, "Test.test2[10]", "Test.Test2[10]", "test2[10]", "Test2[10]", "eq", "eq")
+	AssertDeepError(t, errs, "Test.test2[10]", "Test.Test2[10]", "test2[10]", "Test2[10]", "eq", "eq")
+}
+
+// Thanks @adrian-sgn specific test for your specific scenario
+func TestKeysCustomValidation(t *testing.T) {
+
+	type LangCode string
+	type Label map[LangCode]string
+
+	type TestMapStructPtr struct {
+		Label Label `validate:"dive,keys,lang_code,endkeys,required"`
+	}
+
+	validate := New()
+	validate.RegisterValidation("lang_code", func(fl FieldLevel) bool {
+		validLangCodes := map[LangCode]struct{}{
+			"en": {},
+			"es": {},
+			"pt": {},
+		}
+
+		_, ok := validLangCodes[fl.Field().Interface().(LangCode)]
+		return ok
+	})
+
+	label := Label{
+		"en":  "Good morning!",
+		"pt":  "",
+		"es":  "¡Buenos días!",
+		"xx":  "Bad key",
+		"xxx": "",
+	}
+
+	err := validate.Struct(TestMapStructPtr{label})
+	NotEqual(t, err, nil)
+
+	errs := err.(ValidationErrors)
+	Equal(t, len(errs), 4)
+
+	AssertDeepError(t, errs, "TestMapStructPtr.Label[xx]", "TestMapStructPtr.Label[xx]", "Label[xx]", "Label[xx]", "lang_code", "lang_code")
+	AssertDeepError(t, errs, "TestMapStructPtr.Label[pt]", "TestMapStructPtr.Label[pt]", "Label[pt]", "Label[pt]", "required", "required")
+	AssertDeepError(t, errs, "TestMapStructPtr.Label[xxx]", "TestMapStructPtr.Label[xxx]", "Label[xxx]", "Label[xxx]", "lang_code", "lang_code")
+	AssertDeepError(t, errs, "TestMapStructPtr.Label[xxx]", "TestMapStructPtr.Label[xxx]", "Label[xxx]", "Label[xxx]", "required", "required")
+
+	// find specific error
+
+	var e FieldError
+	for _, e = range errs {
+		if e.Namespace() == "TestMapStructPtr.Label[xxx]" {
+			break
+		}
+	}
+
+	Equal(t, e.Param(), "")
+	Equal(t, e.Value().(LangCode), LangCode("xxx"))
+
+	for _, e = range errs {
+		if e.Namespace() == "TestMapStructPtr.Label[xxx]" && e.Tag() == "required" {
+			break
+		}
+	}
+
+	Equal(t, e.Param(), "")
+	Equal(t, e.Value().(string), "")
+}
+
+func TestKeyOrs(t *testing.T) {
+
+	type Test struct {
+		Test1 map[string]string `validate:"gt=0,dive,keys,eq=testkey|eq=testkeyok,endkeys,eq=testval" json:"test1"`
+	}
+
+	var tst Test
+
+	validate := New()
+	err := validate.Struct(tst)
+	NotEqual(t, err, nil)
+	Equal(t, len(err.(ValidationErrors)), 1)
+	AssertError(t, err.(ValidationErrors), "Test.Test1", "Test.Test1", "Test1", "Test1", "gt")
+
+	tst.Test1 = map[string]string{
+		"testkey": "testval",
+	}
+
+	err = validate.Struct(tst)
+	Equal(t, err, nil)
+
+	tst.Test1["badtestkey"] = "badtestval"
+
+	err = validate.Struct(tst)
+	NotEqual(t, err, nil)
+
+	errs := err.(ValidationErrors)
+
+	Equal(t, len(errs), 2)
+
+	AssertDeepError(t, errs, "Test.Test1[badtestkey]", "Test.Test1[badtestkey]", "Test1[badtestkey]", "Test1[badtestkey]", "eq=testkey|eq=testkeyok", "eq=testkey|eq=testkeyok")
+	AssertDeepError(t, errs, "Test.Test1[badtestkey]", "Test.Test1[badtestkey]", "Test1[badtestkey]", "Test1[badtestkey]", "eq", "eq")
+
+	validate.RegisterAlias("okkey", "eq=testkey|eq=testkeyok")
+
+	type Test2 struct {
+		Test1 map[string]string `validate:"gt=0,dive,keys,okkey,endkeys,eq=testval" json:"test1"`
+	}
+
+	var tst2 Test2
+
+	err = validate.Struct(tst2)
+	NotEqual(t, err, nil)
+	Equal(t, len(err.(ValidationErrors)), 1)
+	AssertError(t, err.(ValidationErrors), "Test2.Test1", "Test2.Test1", "Test1", "Test1", "gt")
+
+	tst2.Test1 = map[string]string{
+		"testkey": "testval",
+	}
+
+	err = validate.Struct(tst2)
+	Equal(t, err, nil)
+
+	tst2.Test1["badtestkey"] = "badtestval"
+
+	err = validate.Struct(tst2)
+	NotEqual(t, err, nil)
+
+	errs = err.(ValidationErrors)
+
+	Equal(t, len(errs), 2)
+
+	AssertDeepError(t, errs, "Test2.Test1[badtestkey]", "Test2.Test1[badtestkey]", "Test1[badtestkey]", "Test1[badtestkey]", "okkey", "eq=testkey|eq=testkeyok")
+	AssertDeepError(t, errs, "Test2.Test1[badtestkey]", "Test2.Test1[badtestkey]", "Test1[badtestkey]", "Test1[badtestkey]", "eq", "eq")
+}
diff --git a/vendor/gopkg.in/yaml.v2/.travis.yml b/vendor/gopkg.in/yaml.v2/.travis.yml
new file mode 100644
index 0000000..004172a
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/.travis.yml
@@ -0,0 +1,9 @@
+language: go
+
+go:
+    - 1.4
+    - 1.5
+    - 1.6
+    - tip
+
+go_import_path: gopkg.in/yaml.v2
diff --git a/vendor/gopkg.in/yaml.v2/LICENSE b/vendor/gopkg.in/yaml.v2/LICENSE
new file mode 100644
index 0000000..8dada3e
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
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+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+   3. Grant of Patent License. Subject to the terms and conditions of
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+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
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+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
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+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
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+
+      (d) If the Work includes a "NOTICE" text file as part of its
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+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
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+
+      You may add Your own copyright statement to Your modifications and
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+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright {yyyy} {name of copyright owner}
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/vendor/gopkg.in/yaml.v2/LICENSE.libyaml b/vendor/gopkg.in/yaml.v2/LICENSE.libyaml
new file mode 100644
index 0000000..8da58fb
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/LICENSE.libyaml
@@ -0,0 +1,31 @@
+The following files were ported to Go from C files of libyaml, and thus
+are still covered by their original copyright and license:
+
+    apic.go
+    emitterc.go
+    parserc.go
+    readerc.go
+    scannerc.go
+    writerc.go
+    yamlh.go
+    yamlprivateh.go
+
+Copyright (c) 2006 Kirill Simonov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/gopkg.in/yaml.v2/README.md b/vendor/gopkg.in/yaml.v2/README.md
new file mode 100644
index 0000000..7a512d6
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/README.md
@@ -0,0 +1,133 @@
+# YAML support for the Go language
+
+Introduction
+------------
+
+The yaml package enables Go programs to comfortably encode and decode YAML
+values. It was developed within [Canonical](https://www.canonical.com) as
+part of the [juju](https://juju.ubuntu.com) project, and is based on a
+pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
+C library to parse and generate YAML data quickly and reliably.
+
+Compatibility
+-------------
+
+The yaml package supports most of YAML 1.1 and 1.2, including support for
+anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
+implemented, and base-60 floats from YAML 1.1 are purposefully not
+supported since they're a poor design and are gone in YAML 1.2.
+
+Installation and usage
+----------------------
+
+The import path for the package is *gopkg.in/yaml.v2*.
+
+To install it, run:
+
+    go get gopkg.in/yaml.v2
+
+API documentation
+-----------------
+
+If opened in a browser, the import path itself leads to the API documentation:
+
+  * [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2)
+
+API stability
+-------------
+
+The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in).
+
+
+License
+-------
+
+The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details.
+
+
+Example
+-------
+
+Some more examples can be found in the "examples" folder.
+
+```Go
+package main
+
+import (
+        "fmt"
+        "log"
+
+        "gopkg.in/yaml.v2"
+)
+
+var data = `
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+`
+
+type T struct {
+        A string
+        B struct {
+                RenamedC int   `yaml:"c"`
+                D        []int `yaml:",flow"`
+        }
+}
+
+func main() {
+        t := T{}
+    
+        err := yaml.Unmarshal([]byte(data), &t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t:\n%v\n\n", t)
+    
+        d, err := yaml.Marshal(&t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t dump:\n%s\n\n", string(d))
+    
+        m := make(map[interface{}]interface{})
+    
+        err = yaml.Unmarshal([]byte(data), &m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m:\n%v\n\n", m)
+    
+        d, err = yaml.Marshal(&m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m dump:\n%s\n\n", string(d))
+}
+```
+
+This example will generate the following output:
+
+```
+--- t:
+{Easy! {2 [3 4]}}
+
+--- t dump:
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+
+
+--- m:
+map[a:Easy! b:map[c:2 d:[3 4]]]
+
+--- m dump:
+a: Easy!
+b:
+  c: 2
+  d:
+  - 3
+  - 4
+```
+
diff --git a/vendor/gopkg.in/yaml.v2/apic.go b/vendor/gopkg.in/yaml.v2/apic.go
new file mode 100644
index 0000000..95ec014
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/apic.go
@@ -0,0 +1,742 @@
+package yaml
+
+import (
+	"io"
+	"os"
+)
+
+func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
+	//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
+
+	// Check if we can move the queue at the beginning of the buffer.
+	if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
+		if parser.tokens_head != len(parser.tokens) {
+			copy(parser.tokens, parser.tokens[parser.tokens_head:])
+		}
+		parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
+		parser.tokens_head = 0
+	}
+	parser.tokens = append(parser.tokens, *token)
+	if pos < 0 {
+		return
+	}
+	copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
+	parser.tokens[parser.tokens_head+pos] = *token
+}
+
+// Create a new parser object.
+func yaml_parser_initialize(parser *yaml_parser_t) bool {
+	*parser = yaml_parser_t{
+		raw_buffer: make([]byte, 0, input_raw_buffer_size),
+		buffer:     make([]byte, 0, input_buffer_size),
+	}
+	return true
+}
+
+// Destroy a parser object.
+func yaml_parser_delete(parser *yaml_parser_t) {
+	*parser = yaml_parser_t{}
+}
+
+// String read handler.
+func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	if parser.input_pos == len(parser.input) {
+		return 0, io.EOF
+	}
+	n = copy(buffer, parser.input[parser.input_pos:])
+	parser.input_pos += n
+	return n, nil
+}
+
+// File read handler.
+func yaml_file_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	return parser.input_file.Read(buffer)
+}
+
+// Set a string input.
+func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_string_read_handler
+	parser.input = input
+	parser.input_pos = 0
+}
+
+// Set a file input.
+func yaml_parser_set_input_file(parser *yaml_parser_t, file *os.File) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_file_read_handler
+	parser.input_file = file
+}
+
+// Set the source encoding.
+func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
+	if parser.encoding != yaml_ANY_ENCODING {
+		panic("must set the encoding only once")
+	}
+	parser.encoding = encoding
+}
+
+// Create a new emitter object.
+func yaml_emitter_initialize(emitter *yaml_emitter_t) bool {
+	*emitter = yaml_emitter_t{
+		buffer:     make([]byte, output_buffer_size),
+		raw_buffer: make([]byte, 0, output_raw_buffer_size),
+		states:     make([]yaml_emitter_state_t, 0, initial_stack_size),
+		events:     make([]yaml_event_t, 0, initial_queue_size),
+	}
+	return true
+}
+
+// Destroy an emitter object.
+func yaml_emitter_delete(emitter *yaml_emitter_t) {
+	*emitter = yaml_emitter_t{}
+}
+
+// String write handler.
+func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
+	return nil
+}
+
+// File write handler.
+func yaml_file_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	_, err := emitter.output_file.Write(buffer)
+	return err
+}
+
+// Set a string output.
+func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_string_write_handler
+	emitter.output_buffer = output_buffer
+}
+
+// Set a file output.
+func yaml_emitter_set_output_file(emitter *yaml_emitter_t, file io.Writer) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_file_write_handler
+	emitter.output_file = file
+}
+
+// Set the output encoding.
+func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
+	if emitter.encoding != yaml_ANY_ENCODING {
+		panic("must set the output encoding only once")
+	}
+	emitter.encoding = encoding
+}
+
+// Set the canonical output style.
+func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
+	emitter.canonical = canonical
+}
+
+//// Set the indentation increment.
+func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
+	if indent < 2 || indent > 9 {
+		indent = 2
+	}
+	emitter.best_indent = indent
+}
+
+// Set the preferred line width.
+func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
+	if width < 0 {
+		width = -1
+	}
+	emitter.best_width = width
+}
+
+// Set if unescaped non-ASCII characters are allowed.
+func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
+	emitter.unicode = unicode
+}
+
+// Set the preferred line break character.
+func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
+	emitter.line_break = line_break
+}
+
+///*
+// * Destroy a token object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_token_delete(yaml_token_t *token)
+//{
+//    assert(token);  // Non-NULL token object expected.
+//
+//    switch (token.type)
+//    {
+//        case YAML_TAG_DIRECTIVE_TOKEN:
+//            yaml_free(token.data.tag_directive.handle);
+//            yaml_free(token.data.tag_directive.prefix);
+//            break;
+//
+//        case YAML_ALIAS_TOKEN:
+//            yaml_free(token.data.alias.value);
+//            break;
+//
+//        case YAML_ANCHOR_TOKEN:
+//            yaml_free(token.data.anchor.value);
+//            break;
+//
+//        case YAML_TAG_TOKEN:
+//            yaml_free(token.data.tag.handle);
+//            yaml_free(token.data.tag.suffix);
+//            break;
+//
+//        case YAML_SCALAR_TOKEN:
+//            yaml_free(token.data.scalar.value);
+//            break;
+//
+//        default:
+//            break;
+//    }
+//
+//    memset(token, 0, sizeof(yaml_token_t));
+//}
+//
+///*
+// * Check if a string is a valid UTF-8 sequence.
+// *
+// * Check 'reader.c' for more details on UTF-8 encoding.
+// */
+//
+//static int
+//yaml_check_utf8(yaml_char_t *start, size_t length)
+//{
+//    yaml_char_t *end = start+length;
+//    yaml_char_t *pointer = start;
+//
+//    while (pointer < end) {
+//        unsigned char octet;
+//        unsigned int width;
+//        unsigned int value;
+//        size_t k;
+//
+//        octet = pointer[0];
+//        width = (octet & 0x80) == 0x00 ? 1 :
+//                (octet & 0xE0) == 0xC0 ? 2 :
+//                (octet & 0xF0) == 0xE0 ? 3 :
+//                (octet & 0xF8) == 0xF0 ? 4 : 0;
+//        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+//                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+//                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+//                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+//        if (!width) return 0;
+//        if (pointer+width > end) return 0;
+//        for (k = 1; k < width; k ++) {
+//            octet = pointer[k];
+//            if ((octet & 0xC0) != 0x80) return 0;
+//            value = (value << 6) + (octet & 0x3F);
+//        }
+//        if (!((width == 1) ||
+//            (width == 2 && value >= 0x80) ||
+//            (width == 3 && value >= 0x800) ||
+//            (width == 4 && value >= 0x10000))) return 0;
+//
+//        pointer += width;
+//    }
+//
+//    return 1;
+//}
+//
+
+// Create STREAM-START.
+func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_STREAM_START_EVENT,
+		encoding: encoding,
+	}
+	return true
+}
+
+// Create STREAM-END.
+func yaml_stream_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_STREAM_END_EVENT,
+	}
+	return true
+}
+
+// Create DOCUMENT-START.
+func yaml_document_start_event_initialize(event *yaml_event_t, version_directive *yaml_version_directive_t,
+	tag_directives []yaml_tag_directive_t, implicit bool) bool {
+	*event = yaml_event_t{
+		typ:               yaml_DOCUMENT_START_EVENT,
+		version_directive: version_directive,
+		tag_directives:    tag_directives,
+		implicit:          implicit,
+	}
+	return true
+}
+
+// Create DOCUMENT-END.
+func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) bool {
+	*event = yaml_event_t{
+		typ:      yaml_DOCUMENT_END_EVENT,
+		implicit: implicit,
+	}
+	return true
+}
+
+///*
+// * Create ALIAS.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
+//{
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    anchor_copy *yaml_char_t = NULL
+//
+//    assert(event) // Non-NULL event object is expected.
+//    assert(anchor) // Non-NULL anchor is expected.
+//
+//    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
+//
+//    anchor_copy = yaml_strdup(anchor)
+//    if (!anchor_copy)
+//        return 0
+//
+//    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
+//
+//    return 1
+//}
+
+// Create SCALAR.
+func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
+	*event = yaml_event_t{
+		typ:             yaml_SCALAR_EVENT,
+		anchor:          anchor,
+		tag:             tag,
+		value:           value,
+		implicit:        plain_implicit,
+		quoted_implicit: quoted_implicit,
+		style:           yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-START.
+func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_SEQUENCE_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-END.
+func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_SEQUENCE_END_EVENT,
+	}
+	return true
+}
+
+// Create MAPPING-START.
+func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_MAPPING_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create MAPPING-END.
+func yaml_mapping_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_MAPPING_END_EVENT,
+	}
+	return true
+}
+
+// Destroy an event object.
+func yaml_event_delete(event *yaml_event_t) {
+	*event = yaml_event_t{}
+}
+
+///*
+// * Create a document object.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_initialize(document *yaml_document_t,
+//        version_directive *yaml_version_directive_t,
+//        tag_directives_start *yaml_tag_directive_t,
+//        tag_directives_end *yaml_tag_directive_t,
+//        start_implicit int, end_implicit int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    struct {
+//        start *yaml_node_t
+//        end *yaml_node_t
+//        top *yaml_node_t
+//    } nodes = { NULL, NULL, NULL }
+//    version_directive_copy *yaml_version_directive_t = NULL
+//    struct {
+//        start *yaml_tag_directive_t
+//        end *yaml_tag_directive_t
+//        top *yaml_tag_directive_t
+//    } tag_directives_copy = { NULL, NULL, NULL }
+//    value yaml_tag_directive_t = { NULL, NULL }
+//    mark yaml_mark_t = { 0, 0, 0 }
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert((tag_directives_start && tag_directives_end) ||
+//            (tag_directives_start == tag_directives_end))
+//                            // Valid tag directives are expected.
+//
+//    if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
+//
+//    if (version_directive) {
+//        version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
+//        if (!version_directive_copy) goto error
+//        version_directive_copy.major = version_directive.major
+//        version_directive_copy.minor = version_directive.minor
+//    }
+//
+//    if (tag_directives_start != tag_directives_end) {
+//        tag_directive *yaml_tag_directive_t
+//        if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
+//            goto error
+//        for (tag_directive = tag_directives_start
+//                tag_directive != tag_directives_end; tag_directive ++) {
+//            assert(tag_directive.handle)
+//            assert(tag_directive.prefix)
+//            if (!yaml_check_utf8(tag_directive.handle,
+//                        strlen((char *)tag_directive.handle)))
+//                goto error
+//            if (!yaml_check_utf8(tag_directive.prefix,
+//                        strlen((char *)tag_directive.prefix)))
+//                goto error
+//            value.handle = yaml_strdup(tag_directive.handle)
+//            value.prefix = yaml_strdup(tag_directive.prefix)
+//            if (!value.handle || !value.prefix) goto error
+//            if (!PUSH(&context, tag_directives_copy, value))
+//                goto error
+//            value.handle = NULL
+//            value.prefix = NULL
+//        }
+//    }
+//
+//    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
+//            tag_directives_copy.start, tag_directives_copy.top,
+//            start_implicit, end_implicit, mark, mark)
+//
+//    return 1
+//
+//error:
+//    STACK_DEL(&context, nodes)
+//    yaml_free(version_directive_copy)
+//    while (!STACK_EMPTY(&context, tag_directives_copy)) {
+//        value yaml_tag_directive_t = POP(&context, tag_directives_copy)
+//        yaml_free(value.handle)
+//        yaml_free(value.prefix)
+//    }
+//    STACK_DEL(&context, tag_directives_copy)
+//    yaml_free(value.handle)
+//    yaml_free(value.prefix)
+//
+//    return 0
+//}
+//
+///*
+// * Destroy a document object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_document_delete(document *yaml_document_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    tag_directive *yaml_tag_directive_t
+//
+//    context.error = YAML_NO_ERROR // Eliminate a compliler warning.
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    while (!STACK_EMPTY(&context, document.nodes)) {
+//        node yaml_node_t = POP(&context, document.nodes)
+//        yaml_free(node.tag)
+//        switch (node.type) {
+//            case YAML_SCALAR_NODE:
+//                yaml_free(node.data.scalar.value)
+//                break
+//            case YAML_SEQUENCE_NODE:
+//                STACK_DEL(&context, node.data.sequence.items)
+//                break
+//            case YAML_MAPPING_NODE:
+//                STACK_DEL(&context, node.data.mapping.pairs)
+//                break
+//            default:
+//                assert(0) // Should not happen.
+//        }
+//    }
+//    STACK_DEL(&context, document.nodes)
+//
+//    yaml_free(document.version_directive)
+//    for (tag_directive = document.tag_directives.start
+//            tag_directive != document.tag_directives.end
+//            tag_directive++) {
+//        yaml_free(tag_directive.handle)
+//        yaml_free(tag_directive.prefix)
+//    }
+//    yaml_free(document.tag_directives.start)
+//
+//    memset(document, 0, sizeof(yaml_document_t))
+//}
+//
+///**
+// * Get a document node.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_node(document *yaml_document_t, index int)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (index > 0 && document.nodes.start + index <= document.nodes.top) {
+//        return document.nodes.start + index - 1
+//    }
+//    return NULL
+//}
+//
+///**
+// * Get the root object.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_root_node(document *yaml_document_t)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (document.nodes.top != document.nodes.start) {
+//        return document.nodes.start
+//    }
+//    return NULL
+//}
+//
+///*
+// * Add a scalar node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_scalar(document *yaml_document_t,
+//        tag *yaml_char_t, value *yaml_char_t, length int,
+//        style yaml_scalar_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    value_copy *yaml_char_t = NULL
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert(value) // Non-NULL value is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (length < 0) {
+//        length = strlen((char *)value)
+//    }
+//
+//    if (!yaml_check_utf8(value, length)) goto error
+//    value_copy = yaml_malloc(length+1)
+//    if (!value_copy) goto error
+//    memcpy(value_copy, value, length)
+//    value_copy[length] = '\0'
+//
+//    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    yaml_free(tag_copy)
+//    yaml_free(value_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a sequence node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_sequence(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_sequence_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_item_t
+//        end *yaml_node_item_t
+//        top *yaml_node_item_t
+//    } items = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
+//
+//    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, items)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a mapping node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_mapping(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_mapping_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_pair_t
+//        end *yaml_node_pair_t
+//        top *yaml_node_pair_t
+//    } pairs = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
+//
+//    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, pairs)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Append an item to a sequence node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_sequence_item(document *yaml_document_t,
+//        sequence int, item int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(sequence > 0
+//            && document.nodes.start + sequence <= document.nodes.top)
+//                            // Valid sequence id is required.
+//    assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
+//                            // A sequence node is required.
+//    assert(item > 0 && document.nodes.start + item <= document.nodes.top)
+//                            // Valid item id is required.
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[sequence-1].data.sequence.items, item))
+//        return 0
+//
+//    return 1
+//}
+//
+///*
+// * Append a pair of a key and a value to a mapping node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_mapping_pair(document *yaml_document_t,
+//        mapping int, key int, value int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    pair yaml_node_pair_t
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(mapping > 0
+//            && document.nodes.start + mapping <= document.nodes.top)
+//                            // Valid mapping id is required.
+//    assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
+//                            // A mapping node is required.
+//    assert(key > 0 && document.nodes.start + key <= document.nodes.top)
+//                            // Valid key id is required.
+//    assert(value > 0 && document.nodes.start + value <= document.nodes.top)
+//                            // Valid value id is required.
+//
+//    pair.key = key
+//    pair.value = value
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[mapping-1].data.mapping.pairs, pair))
+//        return 0
+//
+//    return 1
+//}
+//
+//
diff --git a/vendor/gopkg.in/yaml.v2/decode.go b/vendor/gopkg.in/yaml.v2/decode.go
new file mode 100644
index 0000000..db1f5f2
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/decode.go
@@ -0,0 +1,685 @@
+package yaml
+
+import (
+	"encoding"
+	"encoding/base64"
+	"fmt"
+	"math"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+const (
+	documentNode = 1 << iota
+	mappingNode
+	sequenceNode
+	scalarNode
+	aliasNode
+)
+
+type node struct {
+	kind         int
+	line, column int
+	tag          string
+	value        string
+	implicit     bool
+	children     []*node
+	anchors      map[string]*node
+}
+
+// ----------------------------------------------------------------------------
+// Parser, produces a node tree out of a libyaml event stream.
+
+type parser struct {
+	parser yaml_parser_t
+	event  yaml_event_t
+	doc    *node
+}
+
+func newParser(b []byte) *parser {
+	p := parser{}
+	if !yaml_parser_initialize(&p.parser) {
+		panic("failed to initialize YAML emitter")
+	}
+
+	if len(b) == 0 {
+		b = []byte{'\n'}
+	}
+
+	yaml_parser_set_input_string(&p.parser, b)
+
+	p.skip()
+	if p.event.typ != yaml_STREAM_START_EVENT {
+		panic("expected stream start event, got " + strconv.Itoa(int(p.event.typ)))
+	}
+	p.skip()
+	return &p
+}
+
+func (p *parser) destroy() {
+	if p.event.typ != yaml_NO_EVENT {
+		yaml_event_delete(&p.event)
+	}
+	yaml_parser_delete(&p.parser)
+}
+
+func (p *parser) skip() {
+	if p.event.typ != yaml_NO_EVENT {
+		if p.event.typ == yaml_STREAM_END_EVENT {
+			failf("attempted to go past the end of stream; corrupted value?")
+		}
+		yaml_event_delete(&p.event)
+	}
+	if !yaml_parser_parse(&p.parser, &p.event) {
+		p.fail()
+	}
+}
+
+func (p *parser) fail() {
+	var where string
+	var line int
+	if p.parser.problem_mark.line != 0 {
+		line = p.parser.problem_mark.line
+	} else if p.parser.context_mark.line != 0 {
+		line = p.parser.context_mark.line
+	}
+	if line != 0 {
+		where = "line " + strconv.Itoa(line) + ": "
+	}
+	var msg string
+	if len(p.parser.problem) > 0 {
+		msg = p.parser.problem
+	} else {
+		msg = "unknown problem parsing YAML content"
+	}
+	failf("%s%s", where, msg)
+}
+
+func (p *parser) anchor(n *node, anchor []byte) {
+	if anchor != nil {
+		p.doc.anchors[string(anchor)] = n
+	}
+}
+
+func (p *parser) parse() *node {
+	switch p.event.typ {
+	case yaml_SCALAR_EVENT:
+		return p.scalar()
+	case yaml_ALIAS_EVENT:
+		return p.alias()
+	case yaml_MAPPING_START_EVENT:
+		return p.mapping()
+	case yaml_SEQUENCE_START_EVENT:
+		return p.sequence()
+	case yaml_DOCUMENT_START_EVENT:
+		return p.document()
+	case yaml_STREAM_END_EVENT:
+		// Happens when attempting to decode an empty buffer.
+		return nil
+	default:
+		panic("attempted to parse unknown event: " + strconv.Itoa(int(p.event.typ)))
+	}
+}
+
+func (p *parser) node(kind int) *node {
+	return &node{
+		kind:   kind,
+		line:   p.event.start_mark.line,
+		column: p.event.start_mark.column,
+	}
+}
+
+func (p *parser) document() *node {
+	n := p.node(documentNode)
+	n.anchors = make(map[string]*node)
+	p.doc = n
+	p.skip()
+	n.children = append(n.children, p.parse())
+	if p.event.typ != yaml_DOCUMENT_END_EVENT {
+		panic("expected end of document event but got " + strconv.Itoa(int(p.event.typ)))
+	}
+	p.skip()
+	return n
+}
+
+func (p *parser) alias() *node {
+	n := p.node(aliasNode)
+	n.value = string(p.event.anchor)
+	p.skip()
+	return n
+}
+
+func (p *parser) scalar() *node {
+	n := p.node(scalarNode)
+	n.value = string(p.event.value)
+	n.tag = string(p.event.tag)
+	n.implicit = p.event.implicit
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	return n
+}
+
+func (p *parser) sequence() *node {
+	n := p.node(sequenceNode)
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	for p.event.typ != yaml_SEQUENCE_END_EVENT {
+		n.children = append(n.children, p.parse())
+	}
+	p.skip()
+	return n
+}
+
+func (p *parser) mapping() *node {
+	n := p.node(mappingNode)
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	for p.event.typ != yaml_MAPPING_END_EVENT {
+		n.children = append(n.children, p.parse(), p.parse())
+	}
+	p.skip()
+	return n
+}
+
+// ----------------------------------------------------------------------------
+// Decoder, unmarshals a node into a provided value.
+
+type decoder struct {
+	doc     *node
+	aliases map[string]bool
+	mapType reflect.Type
+	terrors []string
+	strict  bool
+}
+
+var (
+	mapItemType    = reflect.TypeOf(MapItem{})
+	durationType   = reflect.TypeOf(time.Duration(0))
+	defaultMapType = reflect.TypeOf(map[interface{}]interface{}{})
+	ifaceType      = defaultMapType.Elem()
+)
+
+func newDecoder(strict bool) *decoder {
+	d := &decoder{mapType: defaultMapType, strict: strict}
+	d.aliases = make(map[string]bool)
+	return d
+}
+
+func (d *decoder) terror(n *node, tag string, out reflect.Value) {
+	if n.tag != "" {
+		tag = n.tag
+	}
+	value := n.value
+	if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG {
+		if len(value) > 10 {
+			value = " `" + value[:7] + "...`"
+		} else {
+			value = " `" + value + "`"
+		}
+	}
+	d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type()))
+}
+
+func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) {
+	terrlen := len(d.terrors)
+	err := u.UnmarshalYAML(func(v interface{}) (err error) {
+		defer handleErr(&err)
+		d.unmarshal(n, reflect.ValueOf(v))
+		if len(d.terrors) > terrlen {
+			issues := d.terrors[terrlen:]
+			d.terrors = d.terrors[:terrlen]
+			return &TypeError{issues}
+		}
+		return nil
+	})
+	if e, ok := err.(*TypeError); ok {
+		d.terrors = append(d.terrors, e.Errors...)
+		return false
+	}
+	if err != nil {
+		fail(err)
+	}
+	return true
+}
+
+// d.prepare initializes and dereferences pointers and calls UnmarshalYAML
+// if a value is found to implement it.
+// It returns the initialized and dereferenced out value, whether
+// unmarshalling was already done by UnmarshalYAML, and if so whether
+// its types unmarshalled appropriately.
+//
+// If n holds a null value, prepare returns before doing anything.
+func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) {
+	if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "" && n.implicit) {
+		return out, false, false
+	}
+	again := true
+	for again {
+		again = false
+		if out.Kind() == reflect.Ptr {
+			if out.IsNil() {
+				out.Set(reflect.New(out.Type().Elem()))
+			}
+			out = out.Elem()
+			again = true
+		}
+		if out.CanAddr() {
+			if u, ok := out.Addr().Interface().(Unmarshaler); ok {
+				good = d.callUnmarshaler(n, u)
+				return out, true, good
+			}
+		}
+	}
+	return out, false, false
+}
+
+func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
+	switch n.kind {
+	case documentNode:
+		return d.document(n, out)
+	case aliasNode:
+		return d.alias(n, out)
+	}
+	out, unmarshaled, good := d.prepare(n, out)
+	if unmarshaled {
+		return good
+	}
+	switch n.kind {
+	case scalarNode:
+		good = d.scalar(n, out)
+	case mappingNode:
+		good = d.mapping(n, out)
+	case sequenceNode:
+		good = d.sequence(n, out)
+	default:
+		panic("internal error: unknown node kind: " + strconv.Itoa(n.kind))
+	}
+	return good
+}
+
+func (d *decoder) document(n *node, out reflect.Value) (good bool) {
+	if len(n.children) == 1 {
+		d.doc = n
+		d.unmarshal(n.children[0], out)
+		return true
+	}
+	return false
+}
+
+func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
+	an, ok := d.doc.anchors[n.value]
+	if !ok {
+		failf("unknown anchor '%s' referenced", n.value)
+	}
+	if d.aliases[n.value] {
+		failf("anchor '%s' value contains itself", n.value)
+	}
+	d.aliases[n.value] = true
+	good = d.unmarshal(an, out)
+	delete(d.aliases, n.value)
+	return good
+}
+
+var zeroValue reflect.Value
+
+func resetMap(out reflect.Value) {
+	for _, k := range out.MapKeys() {
+		out.SetMapIndex(k, zeroValue)
+	}
+}
+
+func (d *decoder) scalar(n *node, out reflect.Value) (good bool) {
+	var tag string
+	var resolved interface{}
+	if n.tag == "" && !n.implicit {
+		tag = yaml_STR_TAG
+		resolved = n.value
+	} else {
+		tag, resolved = resolve(n.tag, n.value)
+		if tag == yaml_BINARY_TAG {
+			data, err := base64.StdEncoding.DecodeString(resolved.(string))
+			if err != nil {
+				failf("!!binary value contains invalid base64 data")
+			}
+			resolved = string(data)
+		}
+	}
+	if resolved == nil {
+		if out.Kind() == reflect.Map && !out.CanAddr() {
+			resetMap(out)
+		} else {
+			out.Set(reflect.Zero(out.Type()))
+		}
+		return true
+	}
+	if s, ok := resolved.(string); ok && out.CanAddr() {
+		if u, ok := out.Addr().Interface().(encoding.TextUnmarshaler); ok {
+			err := u.UnmarshalText([]byte(s))
+			if err != nil {
+				fail(err)
+			}
+			return true
+		}
+	}
+	switch out.Kind() {
+	case reflect.String:
+		if tag == yaml_BINARY_TAG {
+			out.SetString(resolved.(string))
+			good = true
+		} else if resolved != nil {
+			out.SetString(n.value)
+			good = true
+		}
+	case reflect.Interface:
+		if resolved == nil {
+			out.Set(reflect.Zero(out.Type()))
+		} else {
+			out.Set(reflect.ValueOf(resolved))
+		}
+		good = true
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		switch resolved := resolved.(type) {
+		case int:
+			if !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case int64:
+			if !out.OverflowInt(resolved) {
+				out.SetInt(resolved)
+				good = true
+			}
+		case uint64:
+			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case float64:
+			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case string:
+			if out.Type() == durationType {
+				d, err := time.ParseDuration(resolved)
+				if err == nil {
+					out.SetInt(int64(d))
+					good = true
+				}
+			}
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		switch resolved := resolved.(type) {
+		case int:
+			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case int64:
+			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case uint64:
+			if !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case float64:
+			if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		}
+	case reflect.Bool:
+		switch resolved := resolved.(type) {
+		case bool:
+			out.SetBool(resolved)
+			good = true
+		}
+	case reflect.Float32, reflect.Float64:
+		switch resolved := resolved.(type) {
+		case int:
+			out.SetFloat(float64(resolved))
+			good = true
+		case int64:
+			out.SetFloat(float64(resolved))
+			good = true
+		case uint64:
+			out.SetFloat(float64(resolved))
+			good = true
+		case float64:
+			out.SetFloat(resolved)
+			good = true
+		}
+	case reflect.Ptr:
+		if out.Type().Elem() == reflect.TypeOf(resolved) {
+			// TODO DOes this make sense? When is out a Ptr except when decoding a nil value?
+			elem := reflect.New(out.Type().Elem())
+			elem.Elem().Set(reflect.ValueOf(resolved))
+			out.Set(elem)
+			good = true
+		}
+	}
+	if !good {
+		d.terror(n, tag, out)
+	}
+	return good
+}
+
+func settableValueOf(i interface{}) reflect.Value {
+	v := reflect.ValueOf(i)
+	sv := reflect.New(v.Type()).Elem()
+	sv.Set(v)
+	return sv
+}
+
+func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
+	l := len(n.children)
+
+	var iface reflect.Value
+	switch out.Kind() {
+	case reflect.Slice:
+		out.Set(reflect.MakeSlice(out.Type(), l, l))
+	case reflect.Interface:
+		// No type hints. Will have to use a generic sequence.
+		iface = out
+		out = settableValueOf(make([]interface{}, l))
+	default:
+		d.terror(n, yaml_SEQ_TAG, out)
+		return false
+	}
+	et := out.Type().Elem()
+
+	j := 0
+	for i := 0; i < l; i++ {
+		e := reflect.New(et).Elem()
+		if ok := d.unmarshal(n.children[i], e); ok {
+			out.Index(j).Set(e)
+			j++
+		}
+	}
+	out.Set(out.Slice(0, j))
+	if iface.IsValid() {
+		iface.Set(out)
+	}
+	return true
+}
+
+func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
+	switch out.Kind() {
+	case reflect.Struct:
+		return d.mappingStruct(n, out)
+	case reflect.Slice:
+		return d.mappingSlice(n, out)
+	case reflect.Map:
+		// okay
+	case reflect.Interface:
+		if d.mapType.Kind() == reflect.Map {
+			iface := out
+			out = reflect.MakeMap(d.mapType)
+			iface.Set(out)
+		} else {
+			slicev := reflect.New(d.mapType).Elem()
+			if !d.mappingSlice(n, slicev) {
+				return false
+			}
+			out.Set(slicev)
+			return true
+		}
+	default:
+		d.terror(n, yaml_MAP_TAG, out)
+		return false
+	}
+	outt := out.Type()
+	kt := outt.Key()
+	et := outt.Elem()
+
+	mapType := d.mapType
+	if outt.Key() == ifaceType && outt.Elem() == ifaceType {
+		d.mapType = outt
+	}
+
+	if out.IsNil() {
+		out.Set(reflect.MakeMap(outt))
+	}
+	l := len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		k := reflect.New(kt).Elem()
+		if d.unmarshal(n.children[i], k) {
+			kkind := k.Kind()
+			if kkind == reflect.Interface {
+				kkind = k.Elem().Kind()
+			}
+			if kkind == reflect.Map || kkind == reflect.Slice {
+				failf("invalid map key: %#v", k.Interface())
+			}
+			e := reflect.New(et).Elem()
+			if d.unmarshal(n.children[i+1], e) {
+				out.SetMapIndex(k, e)
+			}
+		}
+	}
+	d.mapType = mapType
+	return true
+}
+
+func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) {
+	outt := out.Type()
+	if outt.Elem() != mapItemType {
+		d.terror(n, yaml_MAP_TAG, out)
+		return false
+	}
+
+	mapType := d.mapType
+	d.mapType = outt
+
+	var slice []MapItem
+	var l = len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		item := MapItem{}
+		k := reflect.ValueOf(&item.Key).Elem()
+		if d.unmarshal(n.children[i], k) {
+			v := reflect.ValueOf(&item.Value).Elem()
+			if d.unmarshal(n.children[i+1], v) {
+				slice = append(slice, item)
+			}
+		}
+	}
+	out.Set(reflect.ValueOf(slice))
+	d.mapType = mapType
+	return true
+}
+
+func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
+	sinfo, err := getStructInfo(out.Type())
+	if err != nil {
+		panic(err)
+	}
+	name := settableValueOf("")
+	l := len(n.children)
+
+	var inlineMap reflect.Value
+	var elemType reflect.Type
+	if sinfo.InlineMap != -1 {
+		inlineMap = out.Field(sinfo.InlineMap)
+		inlineMap.Set(reflect.New(inlineMap.Type()).Elem())
+		elemType = inlineMap.Type().Elem()
+	}
+
+	for i := 0; i < l; i += 2 {
+		ni := n.children[i]
+		if isMerge(ni) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		if !d.unmarshal(ni, name) {
+			continue
+		}
+		if info, ok := sinfo.FieldsMap[name.String()]; ok {
+			var field reflect.Value
+			if info.Inline == nil {
+				field = out.Field(info.Num)
+			} else {
+				field = out.FieldByIndex(info.Inline)
+			}
+			d.unmarshal(n.children[i+1], field)
+		} else if sinfo.InlineMap != -1 {
+			if inlineMap.IsNil() {
+				inlineMap.Set(reflect.MakeMap(inlineMap.Type()))
+			}
+			value := reflect.New(elemType).Elem()
+			d.unmarshal(n.children[i+1], value)
+			inlineMap.SetMapIndex(name, value)
+		} else if d.strict {
+			d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s not found in struct %s", n.line+1, name.String(), out.Type()))
+		}
+	}
+	return true
+}
+
+func failWantMap() {
+	failf("map merge requires map or sequence of maps as the value")
+}
+
+func (d *decoder) merge(n *node, out reflect.Value) {
+	switch n.kind {
+	case mappingNode:
+		d.unmarshal(n, out)
+	case aliasNode:
+		an, ok := d.doc.anchors[n.value]
+		if ok && an.kind != mappingNode {
+			failWantMap()
+		}
+		d.unmarshal(n, out)
+	case sequenceNode:
+		// Step backwards as earlier nodes take precedence.
+		for i := len(n.children) - 1; i >= 0; i-- {
+			ni := n.children[i]
+			if ni.kind == aliasNode {
+				an, ok := d.doc.anchors[ni.value]
+				if ok && an.kind != mappingNode {
+					failWantMap()
+				}
+			} else if ni.kind != mappingNode {
+				failWantMap()
+			}
+			d.unmarshal(ni, out)
+		}
+	default:
+		failWantMap()
+	}
+}
+
+func isMerge(n *node) bool {
+	return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
+}
diff --git a/vendor/gopkg.in/yaml.v2/decode_test.go b/vendor/gopkg.in/yaml.v2/decode_test.go
new file mode 100644
index 0000000..713b1ee
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/decode_test.go
@@ -0,0 +1,1017 @@
+package yaml_test
+
+import (
+	"errors"
+	. "gopkg.in/check.v1"
+	"gopkg.in/yaml.v2"
+	"math"
+	"net"
+	"reflect"
+	"strings"
+	"time"
+)
+
+var unmarshalIntTest = 123
+
+var unmarshalTests = []struct {
+	data  string
+	value interface{}
+}{
+	{
+		"",
+		&struct{}{},
+	}, {
+		"{}", &struct{}{},
+	}, {
+		"v: hi",
+		map[string]string{"v": "hi"},
+	}, {
+		"v: hi", map[string]interface{}{"v": "hi"},
+	}, {
+		"v: true",
+		map[string]string{"v": "true"},
+	}, {
+		"v: true",
+		map[string]interface{}{"v": true},
+	}, {
+		"v: 10",
+		map[string]interface{}{"v": 10},
+	}, {
+		"v: 0b10",
+		map[string]interface{}{"v": 2},
+	}, {
+		"v: 0xA",
+		map[string]interface{}{"v": 10},
+	}, {
+		"v: 4294967296",
+		map[string]int64{"v": 4294967296},
+	}, {
+		"v: 0.1",
+		map[string]interface{}{"v": 0.1},
+	}, {
+		"v: .1",
+		map[string]interface{}{"v": 0.1},
+	}, {
+		"v: .Inf",
+		map[string]interface{}{"v": math.Inf(+1)},
+	}, {
+		"v: -.Inf",
+		map[string]interface{}{"v": math.Inf(-1)},
+	}, {
+		"v: -10",
+		map[string]interface{}{"v": -10},
+	}, {
+		"v: -.1",
+		map[string]interface{}{"v": -0.1},
+	},
+
+	// Simple values.
+	{
+		"123",
+		&unmarshalIntTest,
+	},
+
+	// Floats from spec
+	{
+		"canonical: 6.8523e+5",
+		map[string]interface{}{"canonical": 6.8523e+5},
+	}, {
+		"expo: 685.230_15e+03",
+		map[string]interface{}{"expo": 685.23015e+03},
+	}, {
+		"fixed: 685_230.15",
+		map[string]interface{}{"fixed": 685230.15},
+	}, {
+		"neginf: -.inf",
+		map[string]interface{}{"neginf": math.Inf(-1)},
+	}, {
+		"fixed: 685_230.15",
+		map[string]float64{"fixed": 685230.15},
+	},
+	//{"sexa: 190:20:30.15", map[string]interface{}{"sexa": 0}}, // Unsupported
+	//{"notanum: .NaN", map[string]interface{}{"notanum": math.NaN()}}, // Equality of NaN fails.
+
+	// Bools from spec
+	{
+		"canonical: y",
+		map[string]interface{}{"canonical": true},
+	}, {
+		"answer: NO",
+		map[string]interface{}{"answer": false},
+	}, {
+		"logical: True",
+		map[string]interface{}{"logical": true},
+	}, {
+		"option: on",
+		map[string]interface{}{"option": true},
+	}, {
+		"option: on",
+		map[string]bool{"option": true},
+	},
+	// Ints from spec
+	{
+		"canonical: 685230",
+		map[string]interface{}{"canonical": 685230},
+	}, {
+		"decimal: +685_230",
+		map[string]interface{}{"decimal": 685230},
+	}, {
+		"octal: 02472256",
+		map[string]interface{}{"octal": 685230},
+	}, {
+		"hexa: 0x_0A_74_AE",
+		map[string]interface{}{"hexa": 685230},
+	}, {
+		"bin: 0b1010_0111_0100_1010_1110",
+		map[string]interface{}{"bin": 685230},
+	}, {
+		"bin: -0b101010",
+		map[string]interface{}{"bin": -42},
+	}, {
+		"decimal: +685_230",
+		map[string]int{"decimal": 685230},
+	},
+
+	//{"sexa: 190:20:30", map[string]interface{}{"sexa": 0}}, // Unsupported
+
+	// Nulls from spec
+	{
+		"empty:",
+		map[string]interface{}{"empty": nil},
+	}, {
+		"canonical: ~",
+		map[string]interface{}{"canonical": nil},
+	}, {
+		"english: null",
+		map[string]interface{}{"english": nil},
+	}, {
+		"~: null key",
+		map[interface{}]string{nil: "null key"},
+	}, {
+		"empty:",
+		map[string]*bool{"empty": nil},
+	},
+
+	// Flow sequence
+	{
+		"seq: [A,B]",
+		map[string]interface{}{"seq": []interface{}{"A", "B"}},
+	}, {
+		"seq: [A,B,C,]",
+		map[string][]string{"seq": []string{"A", "B", "C"}},
+	}, {
+		"seq: [A,1,C]",
+		map[string][]string{"seq": []string{"A", "1", "C"}},
+	}, {
+		"seq: [A,1,C]",
+		map[string][]int{"seq": []int{1}},
+	}, {
+		"seq: [A,1,C]",
+		map[string]interface{}{"seq": []interface{}{"A", 1, "C"}},
+	},
+	// Block sequence
+	{
+		"seq:\n - A\n - B",
+		map[string]interface{}{"seq": []interface{}{"A", "B"}},
+	}, {
+		"seq:\n - A\n - B\n - C",
+		map[string][]string{"seq": []string{"A", "B", "C"}},
+	}, {
+		"seq:\n - A\n - 1\n - C",
+		map[string][]string{"seq": []string{"A", "1", "C"}},
+	}, {
+		"seq:\n - A\n - 1\n - C",
+		map[string][]int{"seq": []int{1}},
+	}, {
+		"seq:\n - A\n - 1\n - C",
+		map[string]interface{}{"seq": []interface{}{"A", 1, "C"}},
+	},
+
+	// Literal block scalar
+	{
+		"scalar: | # Comment\n\n literal\n\n \ttext\n\n",
+		map[string]string{"scalar": "\nliteral\n\n\ttext\n"},
+	},
+
+	// Folded block scalar
+	{
+		"scalar: > # Comment\n\n folded\n line\n \n next\n line\n  * one\n  * two\n\n last\n line\n\n",
+		map[string]string{"scalar": "\nfolded line\nnext line\n * one\n * two\n\nlast line\n"},
+	},
+
+	// Map inside interface with no type hints.
+	{
+		"a: {b: c}",
+		map[interface{}]interface{}{"a": map[interface{}]interface{}{"b": "c"}},
+	},
+
+	// Structs and type conversions.
+	{
+		"hello: world",
+		&struct{ Hello string }{"world"},
+	}, {
+		"a: {b: c}",
+		&struct{ A struct{ B string } }{struct{ B string }{"c"}},
+	}, {
+		"a: {b: c}",
+		&struct{ A *struct{ B string } }{&struct{ B string }{"c"}},
+	}, {
+		"a: {b: c}",
+		&struct{ A map[string]string }{map[string]string{"b": "c"}},
+	}, {
+		"a: {b: c}",
+		&struct{ A *map[string]string }{&map[string]string{"b": "c"}},
+	}, {
+		"a:",
+		&struct{ A map[string]string }{},
+	}, {
+		"a: 1",
+		&struct{ A int }{1},
+	}, {
+		"a: 1",
+		&struct{ A float64 }{1},
+	}, {
+		"a: 1.0",
+		&struct{ A int }{1},
+	}, {
+		"a: 1.0",
+		&struct{ A uint }{1},
+	}, {
+		"a: [1, 2]",
+		&struct{ A []int }{[]int{1, 2}},
+	}, {
+		"a: 1",
+		&struct{ B int }{0},
+	}, {
+		"a: 1",
+		&struct {
+			B int "a"
+		}{1},
+	}, {
+		"a: y",
+		&struct{ A bool }{true},
+	},
+
+	// Some cross type conversions
+	{
+		"v: 42",
+		map[string]uint{"v": 42},
+	}, {
+		"v: -42",
+		map[string]uint{},
+	}, {
+		"v: 4294967296",
+		map[string]uint64{"v": 4294967296},
+	}, {
+		"v: -4294967296",
+		map[string]uint64{},
+	},
+
+	// int
+	{
+		"int_max: 2147483647",
+		map[string]int{"int_max": math.MaxInt32},
+	},
+	{
+		"int_min: -2147483648",
+		map[string]int{"int_min": math.MinInt32},
+	},
+	{
+		"int_overflow: 9223372036854775808", // math.MaxInt64 + 1
+		map[string]int{},
+	},
+
+	// int64
+	{
+		"int64_max: 9223372036854775807",
+		map[string]int64{"int64_max": math.MaxInt64},
+	},
+	{
+		"int64_max_base2: 0b111111111111111111111111111111111111111111111111111111111111111",
+		map[string]int64{"int64_max_base2": math.MaxInt64},
+	},
+	{
+		"int64_min: -9223372036854775808",
+		map[string]int64{"int64_min": math.MinInt64},
+	},
+	{
+		"int64_neg_base2: -0b111111111111111111111111111111111111111111111111111111111111111",
+		map[string]int64{"int64_neg_base2": -math.MaxInt64},
+	},
+	{
+		"int64_overflow: 9223372036854775808", // math.MaxInt64 + 1
+		map[string]int64{},
+	},
+
+	// uint
+	{
+		"uint_min: 0",
+		map[string]uint{"uint_min": 0},
+	},
+	{
+		"uint_max: 4294967295",
+		map[string]uint{"uint_max": math.MaxUint32},
+	},
+	{
+		"uint_underflow: -1",
+		map[string]uint{},
+	},
+
+	// uint64
+	{
+		"uint64_min: 0",
+		map[string]uint{"uint64_min": 0},
+	},
+	{
+		"uint64_max: 18446744073709551615",
+		map[string]uint64{"uint64_max": math.MaxUint64},
+	},
+	{
+		"uint64_max_base2: 0b1111111111111111111111111111111111111111111111111111111111111111",
+		map[string]uint64{"uint64_max_base2": math.MaxUint64},
+	},
+	{
+		"uint64_maxint64: 9223372036854775807",
+		map[string]uint64{"uint64_maxint64": math.MaxInt64},
+	},
+	{
+		"uint64_underflow: -1",
+		map[string]uint64{},
+	},
+
+	// float32
+	{
+		"float32_max: 3.40282346638528859811704183484516925440e+38",
+		map[string]float32{"float32_max": math.MaxFloat32},
+	},
+	{
+		"float32_nonzero: 1.401298464324817070923729583289916131280e-45",
+		map[string]float32{"float32_nonzero": math.SmallestNonzeroFloat32},
+	},
+	{
+		"float32_maxuint64: 18446744073709551615",
+		map[string]float32{"float32_maxuint64": float32(math.MaxUint64)},
+	},
+	{
+		"float32_maxuint64+1: 18446744073709551616",
+		map[string]float32{"float32_maxuint64+1": float32(math.MaxUint64 + 1)},
+	},
+
+	// float64
+	{
+		"float64_max: 1.797693134862315708145274237317043567981e+308",
+		map[string]float64{"float64_max": math.MaxFloat64},
+	},
+	{
+		"float64_nonzero: 4.940656458412465441765687928682213723651e-324",
+		map[string]float64{"float64_nonzero": math.SmallestNonzeroFloat64},
+	},
+	{
+		"float64_maxuint64: 18446744073709551615",
+		map[string]float64{"float64_maxuint64": float64(math.MaxUint64)},
+	},
+	{
+		"float64_maxuint64+1: 18446744073709551616",
+		map[string]float64{"float64_maxuint64+1": float64(math.MaxUint64 + 1)},
+	},
+
+	// Overflow cases.
+	{
+		"v: 4294967297",
+		map[string]int32{},
+	}, {
+		"v: 128",
+		map[string]int8{},
+	},
+
+	// Quoted values.
+	{
+		"'1': '\"2\"'",
+		map[interface{}]interface{}{"1": "\"2\""},
+	}, {
+		"v:\n- A\n- 'B\n\n  C'\n",
+		map[string][]string{"v": []string{"A", "B\nC"}},
+	},
+
+	// Explicit tags.
+	{
+		"v: !!float '1.1'",
+		map[string]interface{}{"v": 1.1},
+	}, {
+		"v: !!null ''",
+		map[string]interface{}{"v": nil},
+	}, {
+		"%TAG !y! tag:yaml.org,2002:\n---\nv: !y!int '1'",
+		map[string]interface{}{"v": 1},
+	},
+
+	// Non-specific tag (Issue #75)
+	{
+		"v: ! test",
+		map[string]interface{}{"v": "test"},
+	},
+
+	// Anchors and aliases.
+	{
+		"a: &x 1\nb: &y 2\nc: *x\nd: *y\n",
+		&struct{ A, B, C, D int }{1, 2, 1, 2},
+	}, {
+		"a: &a {c: 1}\nb: *a",
+		&struct {
+			A, B struct {
+				C int
+			}
+		}{struct{ C int }{1}, struct{ C int }{1}},
+	}, {
+		"a: &a [1, 2]\nb: *a",
+		&struct{ B []int }{[]int{1, 2}},
+	}, {
+		"b: *a\na: &a {c: 1}",
+		&struct {
+			A, B struct {
+				C int
+			}
+		}{struct{ C int }{1}, struct{ C int }{1}},
+	},
+
+	// Bug #1133337
+	{
+		"foo: ''",
+		map[string]*string{"foo": new(string)},
+	}, {
+		"foo: null",
+		map[string]string{"foo": ""},
+	}, {
+		"foo: null",
+		map[string]interface{}{"foo": nil},
+	},
+
+	// Ignored field
+	{
+		"a: 1\nb: 2\n",
+		&struct {
+			A int
+			B int "-"
+		}{1, 0},
+	},
+
+	// Bug #1191981
+	{
+		"" +
+			"%YAML 1.1\n" +
+			"--- !!str\n" +
+			`"Generic line break (no glyph)\n\` + "\n" +
+			` Generic line break (glyphed)\n\` + "\n" +
+			` Line separator\u2028\` + "\n" +
+			` Paragraph separator\u2029"` + "\n",
+		"" +
+			"Generic line break (no glyph)\n" +
+			"Generic line break (glyphed)\n" +
+			"Line separator\u2028Paragraph separator\u2029",
+	},
+
+	// Struct inlining
+	{
+		"a: 1\nb: 2\nc: 3\n",
+		&struct {
+			A int
+			C inlineB `yaml:",inline"`
+		}{1, inlineB{2, inlineC{3}}},
+	},
+
+	// Map inlining
+	{
+		"a: 1\nb: 2\nc: 3\n",
+		&struct {
+			A int
+			C map[string]int `yaml:",inline"`
+		}{1, map[string]int{"b": 2, "c": 3}},
+	},
+
+	// bug 1243827
+	{
+		"a: -b_c",
+		map[string]interface{}{"a": "-b_c"},
+	},
+	{
+		"a: +b_c",
+		map[string]interface{}{"a": "+b_c"},
+	},
+	{
+		"a: 50cent_of_dollar",
+		map[string]interface{}{"a": "50cent_of_dollar"},
+	},
+
+	// Duration
+	{
+		"a: 3s",
+		map[string]time.Duration{"a": 3 * time.Second},
+	},
+
+	// Issue #24.
+	{
+		"a: <foo>",
+		map[string]string{"a": "<foo>"},
+	},
+
+	// Base 60 floats are obsolete and unsupported.
+	{
+		"a: 1:1\n",
+		map[string]string{"a": "1:1"},
+	},
+
+	// Binary data.
+	{
+		"a: !!binary gIGC\n",
+		map[string]string{"a": "\x80\x81\x82"},
+	}, {
+		"a: !!binary |\n  " + strings.Repeat("kJCQ", 17) + "kJ\n  CQ\n",
+		map[string]string{"a": strings.Repeat("\x90", 54)},
+	}, {
+		"a: !!binary |\n  " + strings.Repeat("A", 70) + "\n  ==\n",
+		map[string]string{"a": strings.Repeat("\x00", 52)},
+	},
+
+	// Ordered maps.
+	{
+		"{b: 2, a: 1, d: 4, c: 3, sub: {e: 5}}",
+		&yaml.MapSlice{{"b", 2}, {"a", 1}, {"d", 4}, {"c", 3}, {"sub", yaml.MapSlice{{"e", 5}}}},
+	},
+
+	// Issue #39.
+	{
+		"a:\n b:\n  c: d\n",
+		map[string]struct{ B interface{} }{"a": {map[interface{}]interface{}{"c": "d"}}},
+	},
+
+	// Custom map type.
+	{
+		"a: {b: c}",
+		M{"a": M{"b": "c"}},
+	},
+
+	// Support encoding.TextUnmarshaler.
+	{
+		"a: 1.2.3.4\n",
+		map[string]net.IP{"a": net.IPv4(1, 2, 3, 4)},
+	},
+	{
+		"a: 2015-02-24T18:19:39Z\n",
+		map[string]time.Time{"a": time.Unix(1424801979, 0).In(time.UTC)},
+	},
+
+	// Encode empty lists as zero-length slices.
+	{
+		"a: []",
+		&struct{ A []int }{[]int{}},
+	},
+
+	// UTF-16-LE
+	{
+		"\xff\xfe\xf1\x00o\x00\xf1\x00o\x00:\x00 \x00v\x00e\x00r\x00y\x00 \x00y\x00e\x00s\x00\n\x00",
+		M{"ñoño": "very yes"},
+	},
+	// UTF-16-LE with surrogate.
+	{
+		"\xff\xfe\xf1\x00o\x00\xf1\x00o\x00:\x00 \x00v\x00e\x00r\x00y\x00 \x00y\x00e\x00s\x00 \x00=\xd8\xd4\xdf\n\x00",
+		M{"ñoño": "very yes 🟔"},
+	},
+
+	// UTF-16-BE
+	{
+		"\xfe\xff\x00\xf1\x00o\x00\xf1\x00o\x00:\x00 \x00v\x00e\x00r\x00y\x00 \x00y\x00e\x00s\x00\n",
+		M{"ñoño": "very yes"},
+	},
+	// UTF-16-BE with surrogate.
+	{
+		"\xfe\xff\x00\xf1\x00o\x00\xf1\x00o\x00:\x00 \x00v\x00e\x00r\x00y\x00 \x00y\x00e\x00s\x00 \xd8=\xdf\xd4\x00\n",
+		M{"ñoño": "very yes 🟔"},
+	},
+
+	// YAML Float regex shouldn't match this
+	{
+		"a: 123456e1\n",
+		M{"a": "123456e1"},
+	}, {
+		"a: 123456E1\n",
+		M{"a": "123456E1"},
+	},
+}
+
+type M map[interface{}]interface{}
+
+type inlineB struct {
+	B       int
+	inlineC `yaml:",inline"`
+}
+
+type inlineC struct {
+	C int
+}
+
+func (s *S) TestUnmarshal(c *C) {
+	for i, item := range unmarshalTests {
+		c.Logf("test %d: %q", i, item.data)
+		t := reflect.ValueOf(item.value).Type()
+		var value interface{}
+		switch t.Kind() {
+		case reflect.Map:
+			value = reflect.MakeMap(t).Interface()
+		case reflect.String:
+			value = reflect.New(t).Interface()
+		case reflect.Ptr:
+			value = reflect.New(t.Elem()).Interface()
+		default:
+			c.Fatalf("missing case for %s", t)
+		}
+		err := yaml.Unmarshal([]byte(item.data), value)
+		if _, ok := err.(*yaml.TypeError); !ok {
+			c.Assert(err, IsNil)
+		}
+		if t.Kind() == reflect.String {
+			c.Assert(*value.(*string), Equals, item.value)
+		} else {
+			c.Assert(value, DeepEquals, item.value)
+		}
+	}
+}
+
+func (s *S) TestUnmarshalNaN(c *C) {
+	value := map[string]interface{}{}
+	err := yaml.Unmarshal([]byte("notanum: .NaN"), &value)
+	c.Assert(err, IsNil)
+	c.Assert(math.IsNaN(value["notanum"].(float64)), Equals, true)
+}
+
+var unmarshalErrorTests = []struct {
+	data, error string
+}{
+	{"v: !!float 'error'", "yaml: cannot decode !!str `error` as a !!float"},
+	{"v: [A,", "yaml: line 1: did not find expected node content"},
+	{"v:\n- [A,", "yaml: line 2: did not find expected node content"},
+	{"a: *b\n", "yaml: unknown anchor 'b' referenced"},
+	{"a: &a\n  b: *a\n", "yaml: anchor 'a' value contains itself"},
+	{"value: -", "yaml: block sequence entries are not allowed in this context"},
+	{"a: !!binary ==", "yaml: !!binary value contains invalid base64 data"},
+	{"{[.]}", `yaml: invalid map key: \[\]interface \{\}\{"\."\}`},
+	{"{{.}}", `yaml: invalid map key: map\[interface\ \{\}\]interface \{\}\{".":interface \{\}\(nil\)\}`},
+	{"%TAG !%79! tag:yaml.org,2002:\n---\nv: !%79!int '1'", "yaml: did not find expected whitespace"},
+}
+
+func (s *S) TestUnmarshalErrors(c *C) {
+	for _, item := range unmarshalErrorTests {
+		var value interface{}
+		err := yaml.Unmarshal([]byte(item.data), &value)
+		c.Assert(err, ErrorMatches, item.error, Commentf("Partial unmarshal: %#v", value))
+	}
+}
+
+var unmarshalerTests = []struct {
+	data, tag string
+	value     interface{}
+}{
+	{"_: {hi: there}", "!!map", map[interface{}]interface{}{"hi": "there"}},
+	{"_: [1,A]", "!!seq", []interface{}{1, "A"}},
+	{"_: 10", "!!int", 10},
+	{"_: null", "!!null", nil},
+	{`_: BAR!`, "!!str", "BAR!"},
+	{`_: "BAR!"`, "!!str", "BAR!"},
+	{"_: !!foo 'BAR!'", "!!foo", "BAR!"},
+	{`_: ""`, "!!str", ""},
+}
+
+var unmarshalerResult = map[int]error{}
+
+type unmarshalerType struct {
+	value interface{}
+}
+
+func (o *unmarshalerType) UnmarshalYAML(unmarshal func(v interface{}) error) error {
+	if err := unmarshal(&o.value); err != nil {
+		return err
+	}
+	if i, ok := o.value.(int); ok {
+		if result, ok := unmarshalerResult[i]; ok {
+			return result
+		}
+	}
+	return nil
+}
+
+type unmarshalerPointer struct {
+	Field *unmarshalerType "_"
+}
+
+type unmarshalerValue struct {
+	Field unmarshalerType "_"
+}
+
+func (s *S) TestUnmarshalerPointerField(c *C) {
+	for _, item := range unmarshalerTests {
+		obj := &unmarshalerPointer{}
+		err := yaml.Unmarshal([]byte(item.data), obj)
+		c.Assert(err, IsNil)
+		if item.value == nil {
+			c.Assert(obj.Field, IsNil)
+		} else {
+			c.Assert(obj.Field, NotNil, Commentf("Pointer not initialized (%#v)", item.value))
+			c.Assert(obj.Field.value, DeepEquals, item.value)
+		}
+	}
+}
+
+func (s *S) TestUnmarshalerValueField(c *C) {
+	for _, item := range unmarshalerTests {
+		obj := &unmarshalerValue{}
+		err := yaml.Unmarshal([]byte(item.data), obj)
+		c.Assert(err, IsNil)
+		c.Assert(obj.Field, NotNil, Commentf("Pointer not initialized (%#v)", item.value))
+		c.Assert(obj.Field.value, DeepEquals, item.value)
+	}
+}
+
+func (s *S) TestUnmarshalerWholeDocument(c *C) {
+	obj := &unmarshalerType{}
+	err := yaml.Unmarshal([]byte(unmarshalerTests[0].data), obj)
+	c.Assert(err, IsNil)
+	value, ok := obj.value.(map[interface{}]interface{})
+	c.Assert(ok, Equals, true, Commentf("value: %#v", obj.value))
+	c.Assert(value["_"], DeepEquals, unmarshalerTests[0].value)
+}
+
+func (s *S) TestUnmarshalerTypeError(c *C) {
+	unmarshalerResult[2] = &yaml.TypeError{[]string{"foo"}}
+	unmarshalerResult[4] = &yaml.TypeError{[]string{"bar"}}
+	defer func() {
+		delete(unmarshalerResult, 2)
+		delete(unmarshalerResult, 4)
+	}()
+
+	type T struct {
+		Before int
+		After  int
+		M      map[string]*unmarshalerType
+	}
+	var v T
+	data := `{before: A, m: {abc: 1, def: 2, ghi: 3, jkl: 4}, after: B}`
+	err := yaml.Unmarshal([]byte(data), &v)
+	c.Assert(err, ErrorMatches, ""+
+		"yaml: unmarshal errors:\n"+
+		"  line 1: cannot unmarshal !!str `A` into int\n"+
+		"  foo\n"+
+		"  bar\n"+
+		"  line 1: cannot unmarshal !!str `B` into int")
+	c.Assert(v.M["abc"], NotNil)
+	c.Assert(v.M["def"], IsNil)
+	c.Assert(v.M["ghi"], NotNil)
+	c.Assert(v.M["jkl"], IsNil)
+
+	c.Assert(v.M["abc"].value, Equals, 1)
+	c.Assert(v.M["ghi"].value, Equals, 3)
+}
+
+type proxyTypeError struct{}
+
+func (v *proxyTypeError) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var s string
+	var a int32
+	var b int64
+	if err := unmarshal(&s); err != nil {
+		panic(err)
+	}
+	if s == "a" {
+		if err := unmarshal(&b); err == nil {
+			panic("should have failed")
+		}
+		return unmarshal(&a)
+	}
+	if err := unmarshal(&a); err == nil {
+		panic("should have failed")
+	}
+	return unmarshal(&b)
+}
+
+func (s *S) TestUnmarshalerTypeErrorProxying(c *C) {
+	type T struct {
+		Before int
+		After  int
+		M      map[string]*proxyTypeError
+	}
+	var v T
+	data := `{before: A, m: {abc: a, def: b}, after: B}`
+	err := yaml.Unmarshal([]byte(data), &v)
+	c.Assert(err, ErrorMatches, ""+
+		"yaml: unmarshal errors:\n"+
+		"  line 1: cannot unmarshal !!str `A` into int\n"+
+		"  line 1: cannot unmarshal !!str `a` into int32\n"+
+		"  line 1: cannot unmarshal !!str `b` into int64\n"+
+		"  line 1: cannot unmarshal !!str `B` into int")
+}
+
+type failingUnmarshaler struct{}
+
+var failingErr = errors.New("failingErr")
+
+func (ft *failingUnmarshaler) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	return failingErr
+}
+
+func (s *S) TestUnmarshalerError(c *C) {
+	err := yaml.Unmarshal([]byte("a: b"), &failingUnmarshaler{})
+	c.Assert(err, Equals, failingErr)
+}
+
+type sliceUnmarshaler []int
+
+func (su *sliceUnmarshaler) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var slice []int
+	err := unmarshal(&slice)
+	if err == nil {
+		*su = slice
+		return nil
+	}
+
+	var intVal int
+	err = unmarshal(&intVal)
+	if err == nil {
+		*su = []int{intVal}
+		return nil
+	}
+
+	return err
+}
+
+func (s *S) TestUnmarshalerRetry(c *C) {
+	var su sliceUnmarshaler
+	err := yaml.Unmarshal([]byte("[1, 2, 3]"), &su)
+	c.Assert(err, IsNil)
+	c.Assert(su, DeepEquals, sliceUnmarshaler([]int{1, 2, 3}))
+
+	err = yaml.Unmarshal([]byte("1"), &su)
+	c.Assert(err, IsNil)
+	c.Assert(su, DeepEquals, sliceUnmarshaler([]int{1}))
+}
+
+// From http://yaml.org/type/merge.html
+var mergeTests = `
+anchors:
+  list:
+    - &CENTER { "x": 1, "y": 2 }
+    - &LEFT   { "x": 0, "y": 2 }
+    - &BIG    { "r": 10 }
+    - &SMALL  { "r": 1 }
+
+# All the following maps are equal:
+
+plain:
+  # Explicit keys
+  "x": 1
+  "y": 2
+  "r": 10
+  label: center/big
+
+mergeOne:
+  # Merge one map
+  << : *CENTER
+  "r": 10
+  label: center/big
+
+mergeMultiple:
+  # Merge multiple maps
+  << : [ *CENTER, *BIG ]
+  label: center/big
+
+override:
+  # Override
+  << : [ *BIG, *LEFT, *SMALL ]
+  "x": 1
+  label: center/big
+
+shortTag:
+  # Explicit short merge tag
+  !!merge "<<" : [ *CENTER, *BIG ]
+  label: center/big
+
+longTag:
+  # Explicit merge long tag
+  !<tag:yaml.org,2002:merge> "<<" : [ *CENTER, *BIG ]
+  label: center/big
+
+inlineMap:
+  # Inlined map 
+  << : {"x": 1, "y": 2, "r": 10}
+  label: center/big
+
+inlineSequenceMap:
+  # Inlined map in sequence
+  << : [ *CENTER, {"r": 10} ]
+  label: center/big
+`
+
+func (s *S) TestMerge(c *C) {
+	var want = map[interface{}]interface{}{
+		"x":     1,
+		"y":     2,
+		"r":     10,
+		"label": "center/big",
+	}
+
+	var m map[interface{}]interface{}
+	err := yaml.Unmarshal([]byte(mergeTests), &m)
+	c.Assert(err, IsNil)
+	for name, test := range m {
+		if name == "anchors" {
+			continue
+		}
+		c.Assert(test, DeepEquals, want, Commentf("test %q failed", name))
+	}
+}
+
+func (s *S) TestMergeStruct(c *C) {
+	type Data struct {
+		X, Y, R int
+		Label   string
+	}
+	want := Data{1, 2, 10, "center/big"}
+
+	var m map[string]Data
+	err := yaml.Unmarshal([]byte(mergeTests), &m)
+	c.Assert(err, IsNil)
+	for name, test := range m {
+		if name == "anchors" {
+			continue
+		}
+		c.Assert(test, Equals, want, Commentf("test %q failed", name))
+	}
+}
+
+var unmarshalNullTests = []func() interface{}{
+	func() interface{} { var v interface{}; v = "v"; return &v },
+	func() interface{} { var s = "s"; return &s },
+	func() interface{} { var s = "s"; sptr := &s; return &sptr },
+	func() interface{} { var i = 1; return &i },
+	func() interface{} { var i = 1; iptr := &i; return &iptr },
+	func() interface{} { m := map[string]int{"s": 1}; return &m },
+	func() interface{} { m := map[string]int{"s": 1}; return m },
+}
+
+func (s *S) TestUnmarshalNull(c *C) {
+	for _, test := range unmarshalNullTests {
+		item := test()
+		zero := reflect.Zero(reflect.TypeOf(item).Elem()).Interface()
+		err := yaml.Unmarshal([]byte("null"), item)
+		c.Assert(err, IsNil)
+		if reflect.TypeOf(item).Kind() == reflect.Map {
+			c.Assert(reflect.ValueOf(item).Interface(), DeepEquals, reflect.MakeMap(reflect.TypeOf(item)).Interface())
+		} else {
+			c.Assert(reflect.ValueOf(item).Elem().Interface(), DeepEquals, zero)
+		}
+	}
+}
+
+func (s *S) TestUnmarshalSliceOnPreset(c *C) {
+	// Issue #48.
+	v := struct{ A []int }{[]int{1}}
+	yaml.Unmarshal([]byte("a: [2]"), &v)
+	c.Assert(v.A, DeepEquals, []int{2})
+}
+
+func (s *S) TestUnmarshalStrict(c *C) {
+	v := struct{ A, B int }{}
+
+	err := yaml.UnmarshalStrict([]byte("a: 1\nb: 2"), &v)
+	c.Check(err, IsNil)
+	err = yaml.Unmarshal([]byte("a: 1\nb: 2\nc: 3"), &v)
+	c.Check(err, IsNil)
+	err = yaml.UnmarshalStrict([]byte("a: 1\nb: 2\nc: 3"), &v)
+	c.Check(err, ErrorMatches, "yaml: unmarshal errors:\n  line 1: field c not found in struct struct { A int; B int }")
+}
+
+//var data []byte
+//func init() {
+//	var err error
+//	data, err = ioutil.ReadFile("/tmp/file.yaml")
+//	if err != nil {
+//		panic(err)
+//	}
+//}
+//
+//func (s *S) BenchmarkUnmarshal(c *C) {
+//	var err error
+//	for i := 0; i < c.N; i++ {
+//		var v map[string]interface{}
+//		err = yaml.Unmarshal(data, &v)
+//	}
+//	if err != nil {
+//		panic(err)
+//	}
+//}
+//
+//func (s *S) BenchmarkMarshal(c *C) {
+//	var v map[string]interface{}
+//	yaml.Unmarshal(data, &v)
+//	c.ResetTimer()
+//	for i := 0; i < c.N; i++ {
+//		yaml.Marshal(&v)
+//	}
+//}
diff --git a/vendor/gopkg.in/yaml.v2/emitterc.go b/vendor/gopkg.in/yaml.v2/emitterc.go
new file mode 100644
index 0000000..41de8b8
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/emitterc.go
@@ -0,0 +1,1684 @@
+package yaml
+
+import (
+	"bytes"
+)
+
+// Flush the buffer if needed.
+func flush(emitter *yaml_emitter_t) bool {
+	if emitter.buffer_pos+5 >= len(emitter.buffer) {
+		return yaml_emitter_flush(emitter)
+	}
+	return true
+}
+
+// Put a character to the output buffer.
+func put(emitter *yaml_emitter_t, value byte) bool {
+	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+		return false
+	}
+	emitter.buffer[emitter.buffer_pos] = value
+	emitter.buffer_pos++
+	emitter.column++
+	return true
+}
+
+// Put a line break to the output buffer.
+func put_break(emitter *yaml_emitter_t) bool {
+	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+		return false
+	}
+	switch emitter.line_break {
+	case yaml_CR_BREAK:
+		emitter.buffer[emitter.buffer_pos] = '\r'
+		emitter.buffer_pos += 1
+	case yaml_LN_BREAK:
+		emitter.buffer[emitter.buffer_pos] = '\n'
+		emitter.buffer_pos += 1
+	case yaml_CRLN_BREAK:
+		emitter.buffer[emitter.buffer_pos+0] = '\r'
+		emitter.buffer[emitter.buffer_pos+1] = '\n'
+		emitter.buffer_pos += 2
+	default:
+		panic("unknown line break setting")
+	}
+	emitter.column = 0
+	emitter.line++
+	return true
+}
+
+// Copy a character from a string into buffer.
+func write(emitter *yaml_emitter_t, s []byte, i *int) bool {
+	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+		return false
+	}
+	p := emitter.buffer_pos
+	w := width(s[*i])
+	switch w {
+	case 4:
+		emitter.buffer[p+3] = s[*i+3]
+		fallthrough
+	case 3:
+		emitter.buffer[p+2] = s[*i+2]
+		fallthrough
+	case 2:
+		emitter.buffer[p+1] = s[*i+1]
+		fallthrough
+	case 1:
+		emitter.buffer[p+0] = s[*i+0]
+	default:
+		panic("unknown character width")
+	}
+	emitter.column++
+	emitter.buffer_pos += w
+	*i += w
+	return true
+}
+
+// Write a whole string into buffer.
+func write_all(emitter *yaml_emitter_t, s []byte) bool {
+	for i := 0; i < len(s); {
+		if !write(emitter, s, &i) {
+			return false
+		}
+	}
+	return true
+}
+
+// Copy a line break character from a string into buffer.
+func write_break(emitter *yaml_emitter_t, s []byte, i *int) bool {
+	if s[*i] == '\n' {
+		if !put_break(emitter) {
+			return false
+		}
+		*i++
+	} else {
+		if !write(emitter, s, i) {
+			return false
+		}
+		emitter.column = 0
+		emitter.line++
+	}
+	return true
+}
+
+// Set an emitter error and return false.
+func yaml_emitter_set_emitter_error(emitter *yaml_emitter_t, problem string) bool {
+	emitter.error = yaml_EMITTER_ERROR
+	emitter.problem = problem
+	return false
+}
+
+// Emit an event.
+func yaml_emitter_emit(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	emitter.events = append(emitter.events, *event)
+	for !yaml_emitter_need_more_events(emitter) {
+		event := &emitter.events[emitter.events_head]
+		if !yaml_emitter_analyze_event(emitter, event) {
+			return false
+		}
+		if !yaml_emitter_state_machine(emitter, event) {
+			return false
+		}
+		yaml_event_delete(event)
+		emitter.events_head++
+	}
+	return true
+}
+
+// Check if we need to accumulate more events before emitting.
+//
+// We accumulate extra
+//  - 1 event for DOCUMENT-START
+//  - 2 events for SEQUENCE-START
+//  - 3 events for MAPPING-START
+//
+func yaml_emitter_need_more_events(emitter *yaml_emitter_t) bool {
+	if emitter.events_head == len(emitter.events) {
+		return true
+	}
+	var accumulate int
+	switch emitter.events[emitter.events_head].typ {
+	case yaml_DOCUMENT_START_EVENT:
+		accumulate = 1
+		break
+	case yaml_SEQUENCE_START_EVENT:
+		accumulate = 2
+		break
+	case yaml_MAPPING_START_EVENT:
+		accumulate = 3
+		break
+	default:
+		return false
+	}
+	if len(emitter.events)-emitter.events_head > accumulate {
+		return false
+	}
+	var level int
+	for i := emitter.events_head; i < len(emitter.events); i++ {
+		switch emitter.events[i].typ {
+		case yaml_STREAM_START_EVENT, yaml_DOCUMENT_START_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT:
+			level++
+		case yaml_STREAM_END_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_END_EVENT, yaml_MAPPING_END_EVENT:
+			level--
+		}
+		if level == 0 {
+			return false
+		}
+	}
+	return true
+}
+
+// Append a directive to the directives stack.
+func yaml_emitter_append_tag_directive(emitter *yaml_emitter_t, value *yaml_tag_directive_t, allow_duplicates bool) bool {
+	for i := 0; i < len(emitter.tag_directives); i++ {
+		if bytes.Equal(value.handle, emitter.tag_directives[i].handle) {
+			if allow_duplicates {
+				return true
+			}
+			return yaml_emitter_set_emitter_error(emitter, "duplicate %TAG directive")
+		}
+	}
+
+	// [Go] Do we actually need to copy this given garbage collection
+	// and the lack of deallocating destructors?
+	tag_copy := yaml_tag_directive_t{
+		handle: make([]byte, len(value.handle)),
+		prefix: make([]byte, len(value.prefix)),
+	}
+	copy(tag_copy.handle, value.handle)
+	copy(tag_copy.prefix, value.prefix)
+	emitter.tag_directives = append(emitter.tag_directives, tag_copy)
+	return true
+}
+
+// Increase the indentation level.
+func yaml_emitter_increase_indent(emitter *yaml_emitter_t, flow, indentless bool) bool {
+	emitter.indents = append(emitter.indents, emitter.indent)
+	if emitter.indent < 0 {
+		if flow {
+			emitter.indent = emitter.best_indent
+		} else {
+			emitter.indent = 0
+		}
+	} else if !indentless {
+		emitter.indent += emitter.best_indent
+	}
+	return true
+}
+
+// State dispatcher.
+func yaml_emitter_state_machine(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	switch emitter.state {
+	default:
+	case yaml_EMIT_STREAM_START_STATE:
+		return yaml_emitter_emit_stream_start(emitter, event)
+
+	case yaml_EMIT_FIRST_DOCUMENT_START_STATE:
+		return yaml_emitter_emit_document_start(emitter, event, true)
+
+	case yaml_EMIT_DOCUMENT_START_STATE:
+		return yaml_emitter_emit_document_start(emitter, event, false)
+
+	case yaml_EMIT_DOCUMENT_CONTENT_STATE:
+		return yaml_emitter_emit_document_content(emitter, event)
+
+	case yaml_EMIT_DOCUMENT_END_STATE:
+		return yaml_emitter_emit_document_end(emitter, event)
+
+	case yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE:
+		return yaml_emitter_emit_flow_sequence_item(emitter, event, true)
+
+	case yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE:
+		return yaml_emitter_emit_flow_sequence_item(emitter, event, false)
+
+	case yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE:
+		return yaml_emitter_emit_flow_mapping_key(emitter, event, true)
+
+	case yaml_EMIT_FLOW_MAPPING_KEY_STATE:
+		return yaml_emitter_emit_flow_mapping_key(emitter, event, false)
+
+	case yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE:
+		return yaml_emitter_emit_flow_mapping_value(emitter, event, true)
+
+	case yaml_EMIT_FLOW_MAPPING_VALUE_STATE:
+		return yaml_emitter_emit_flow_mapping_value(emitter, event, false)
+
+	case yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE:
+		return yaml_emitter_emit_block_sequence_item(emitter, event, true)
+
+	case yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE:
+		return yaml_emitter_emit_block_sequence_item(emitter, event, false)
+
+	case yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return yaml_emitter_emit_block_mapping_key(emitter, event, true)
+
+	case yaml_EMIT_BLOCK_MAPPING_KEY_STATE:
+		return yaml_emitter_emit_block_mapping_key(emitter, event, false)
+
+	case yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE:
+		return yaml_emitter_emit_block_mapping_value(emitter, event, true)
+
+	case yaml_EMIT_BLOCK_MAPPING_VALUE_STATE:
+		return yaml_emitter_emit_block_mapping_value(emitter, event, false)
+
+	case yaml_EMIT_END_STATE:
+		return yaml_emitter_set_emitter_error(emitter, "expected nothing after STREAM-END")
+	}
+	panic("invalid emitter state")
+}
+
+// Expect STREAM-START.
+func yaml_emitter_emit_stream_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if event.typ != yaml_STREAM_START_EVENT {
+		return yaml_emitter_set_emitter_error(emitter, "expected STREAM-START")
+	}
+	if emitter.encoding == yaml_ANY_ENCODING {
+		emitter.encoding = event.encoding
+		if emitter.encoding == yaml_ANY_ENCODING {
+			emitter.encoding = yaml_UTF8_ENCODING
+		}
+	}
+	if emitter.best_indent < 2 || emitter.best_indent > 9 {
+		emitter.best_indent = 2
+	}
+	if emitter.best_width >= 0 && emitter.best_width <= emitter.best_indent*2 {
+		emitter.best_width = 80
+	}
+	if emitter.best_width < 0 {
+		emitter.best_width = 1<<31 - 1
+	}
+	if emitter.line_break == yaml_ANY_BREAK {
+		emitter.line_break = yaml_LN_BREAK
+	}
+
+	emitter.indent = -1
+	emitter.line = 0
+	emitter.column = 0
+	emitter.whitespace = true
+	emitter.indention = true
+
+	if emitter.encoding != yaml_UTF8_ENCODING {
+		if !yaml_emitter_write_bom(emitter) {
+			return false
+		}
+	}
+	emitter.state = yaml_EMIT_FIRST_DOCUMENT_START_STATE
+	return true
+}
+
+// Expect DOCUMENT-START or STREAM-END.
+func yaml_emitter_emit_document_start(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+
+	if event.typ == yaml_DOCUMENT_START_EVENT {
+
+		if event.version_directive != nil {
+			if !yaml_emitter_analyze_version_directive(emitter, event.version_directive) {
+				return false
+			}
+		}
+
+		for i := 0; i < len(event.tag_directives); i++ {
+			tag_directive := &event.tag_directives[i]
+			if !yaml_emitter_analyze_tag_directive(emitter, tag_directive) {
+				return false
+			}
+			if !yaml_emitter_append_tag_directive(emitter, tag_directive, false) {
+				return false
+			}
+		}
+
+		for i := 0; i < len(default_tag_directives); i++ {
+			tag_directive := &default_tag_directives[i]
+			if !yaml_emitter_append_tag_directive(emitter, tag_directive, true) {
+				return false
+			}
+		}
+
+		implicit := event.implicit
+		if !first || emitter.canonical {
+			implicit = false
+		}
+
+		if emitter.open_ended && (event.version_directive != nil || len(event.tag_directives) > 0) {
+			if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+
+		if event.version_directive != nil {
+			implicit = false
+			if !yaml_emitter_write_indicator(emitter, []byte("%YAML"), true, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indicator(emitter, []byte("1.1"), true, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+
+		if len(event.tag_directives) > 0 {
+			implicit = false
+			for i := 0; i < len(event.tag_directives); i++ {
+				tag_directive := &event.tag_directives[i]
+				if !yaml_emitter_write_indicator(emitter, []byte("%TAG"), true, false, false) {
+					return false
+				}
+				if !yaml_emitter_write_tag_handle(emitter, tag_directive.handle) {
+					return false
+				}
+				if !yaml_emitter_write_tag_content(emitter, tag_directive.prefix, true) {
+					return false
+				}
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+		}
+
+		if yaml_emitter_check_empty_document(emitter) {
+			implicit = false
+		}
+		if !implicit {
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+			if !yaml_emitter_write_indicator(emitter, []byte("---"), true, false, false) {
+				return false
+			}
+			if emitter.canonical {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+		}
+
+		emitter.state = yaml_EMIT_DOCUMENT_CONTENT_STATE
+		return true
+	}
+
+	if event.typ == yaml_STREAM_END_EVENT {
+		if emitter.open_ended {
+			if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+		if !yaml_emitter_flush(emitter) {
+			return false
+		}
+		emitter.state = yaml_EMIT_END_STATE
+		return true
+	}
+
+	return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-START or STREAM-END")
+}
+
+// Expect the root node.
+func yaml_emitter_emit_document_content(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	emitter.states = append(emitter.states, yaml_EMIT_DOCUMENT_END_STATE)
+	return yaml_emitter_emit_node(emitter, event, true, false, false, false)
+}
+
+// Expect DOCUMENT-END.
+func yaml_emitter_emit_document_end(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if event.typ != yaml_DOCUMENT_END_EVENT {
+		return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-END")
+	}
+	if !yaml_emitter_write_indent(emitter) {
+		return false
+	}
+	if !event.implicit {
+		// [Go] Allocate the slice elsewhere.
+		if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+			return false
+		}
+		if !yaml_emitter_write_indent(emitter) {
+			return false
+		}
+	}
+	if !yaml_emitter_flush(emitter) {
+		return false
+	}
+	emitter.state = yaml_EMIT_DOCUMENT_START_STATE
+	emitter.tag_directives = emitter.tag_directives[:0]
+	return true
+}
+
+// Expect a flow item node.
+func yaml_emitter_emit_flow_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+	if first {
+		if !yaml_emitter_write_indicator(emitter, []byte{'['}, true, true, false) {
+			return false
+		}
+		if !yaml_emitter_increase_indent(emitter, true, false) {
+			return false
+		}
+		emitter.flow_level++
+	}
+
+	if event.typ == yaml_SEQUENCE_END_EVENT {
+		emitter.flow_level--
+		emitter.indent = emitter.indents[len(emitter.indents)-1]
+		emitter.indents = emitter.indents[:len(emitter.indents)-1]
+		if emitter.canonical && !first {
+			if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{']'}, false, false, false) {
+			return false
+		}
+		emitter.state = emitter.states[len(emitter.states)-1]
+		emitter.states = emitter.states[:len(emitter.states)-1]
+
+		return true
+	}
+
+	if !first {
+		if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+			return false
+		}
+	}
+
+	if emitter.canonical || emitter.column > emitter.best_width {
+		if !yaml_emitter_write_indent(emitter) {
+			return false
+		}
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, true, false, false)
+}
+
+// Expect a flow key node.
+func yaml_emitter_emit_flow_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+	if first {
+		if !yaml_emitter_write_indicator(emitter, []byte{'{'}, true, true, false) {
+			return false
+		}
+		if !yaml_emitter_increase_indent(emitter, true, false) {
+			return false
+		}
+		emitter.flow_level++
+	}
+
+	if event.typ == yaml_MAPPING_END_EVENT {
+		emitter.flow_level--
+		emitter.indent = emitter.indents[len(emitter.indents)-1]
+		emitter.indents = emitter.indents[:len(emitter.indents)-1]
+		if emitter.canonical && !first {
+			if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+				return false
+			}
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{'}'}, false, false, false) {
+			return false
+		}
+		emitter.state = emitter.states[len(emitter.states)-1]
+		emitter.states = emitter.states[:len(emitter.states)-1]
+		return true
+	}
+
+	if !first {
+		if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+			return false
+		}
+	}
+	if emitter.canonical || emitter.column > emitter.best_width {
+		if !yaml_emitter_write_indent(emitter) {
+			return false
+		}
+	}
+
+	if !emitter.canonical && yaml_emitter_check_simple_key(emitter) {
+		emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)
+		return yaml_emitter_emit_node(emitter, event, false, false, true, true)
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, false) {
+		return false
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_VALUE_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a flow value node.
+func yaml_emitter_emit_flow_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
+	if simple {
+		if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
+			return false
+		}
+	} else {
+		if emitter.canonical || emitter.column > emitter.best_width {
+			if !yaml_emitter_write_indent(emitter) {
+				return false
+			}
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, false) {
+			return false
+		}
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_KEY_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a block item node.
+func yaml_emitter_emit_block_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+	if first {
+		if !yaml_emitter_increase_indent(emitter, false, emitter.mapping_context && !emitter.indention) {
+			return false
+		}
+	}
+	if event.typ == yaml_SEQUENCE_END_EVENT {
+		emitter.indent = emitter.indents[len(emitter.indents)-1]
+		emitter.indents = emitter.indents[:len(emitter.indents)-1]
+		emitter.state = emitter.states[len(emitter.states)-1]
+		emitter.states = emitter.states[:len(emitter.states)-1]
+		return true
+	}
+	if !yaml_emitter_write_indent(emitter) {
+		return false
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'-'}, true, false, true) {
+		return false
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, true, false, false)
+}
+
+// Expect a block key node.
+func yaml_emitter_emit_block_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+	if first {
+		if !yaml_emitter_increase_indent(emitter, false, false) {
+			return false
+		}
+	}
+	if event.typ == yaml_MAPPING_END_EVENT {
+		emitter.indent = emitter.indents[len(emitter.indents)-1]
+		emitter.indents = emitter.indents[:len(emitter.indents)-1]
+		emitter.state = emitter.states[len(emitter.states)-1]
+		emitter.states = emitter.states[:len(emitter.states)-1]
+		return true
+	}
+	if !yaml_emitter_write_indent(emitter) {
+		return false
+	}
+	if yaml_emitter_check_simple_key(emitter) {
+		emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)
+		return yaml_emitter_emit_node(emitter, event, false, false, true, true)
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, true) {
+		return false
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_VALUE_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a block value node.
+func yaml_emitter_emit_block_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
+	if simple {
+		if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
+			return false
+		}
+	} else {
+		if !yaml_emitter_write_indent(emitter) {
+			return false
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, true) {
+			return false
+		}
+	}
+	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_KEY_STATE)
+	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a node.
+func yaml_emitter_emit_node(emitter *yaml_emitter_t, event *yaml_event_t,
+	root bool, sequence bool, mapping bool, simple_key bool) bool {
+
+	emitter.root_context = root
+	emitter.sequence_context = sequence
+	emitter.mapping_context = mapping
+	emitter.simple_key_context = simple_key
+
+	switch event.typ {
+	case yaml_ALIAS_EVENT:
+		return yaml_emitter_emit_alias(emitter, event)
+	case yaml_SCALAR_EVENT:
+		return yaml_emitter_emit_scalar(emitter, event)
+	case yaml_SEQUENCE_START_EVENT:
+		return yaml_emitter_emit_sequence_start(emitter, event)
+	case yaml_MAPPING_START_EVENT:
+		return yaml_emitter_emit_mapping_start(emitter, event)
+	default:
+		return yaml_emitter_set_emitter_error(emitter,
+			"expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS")
+	}
+}
+
+// Expect ALIAS.
+func yaml_emitter_emit_alias(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if !yaml_emitter_process_anchor(emitter) {
+		return false
+	}
+	emitter.state = emitter.states[len(emitter.states)-1]
+	emitter.states = emitter.states[:len(emitter.states)-1]
+	return true
+}
+
+// Expect SCALAR.
+func yaml_emitter_emit_scalar(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if !yaml_emitter_select_scalar_style(emitter, event) {
+		return false
+	}
+	if !yaml_emitter_process_anchor(emitter) {
+		return false
+	}
+	if !yaml_emitter_process_tag(emitter) {
+		return false
+	}
+	if !yaml_emitter_increase_indent(emitter, true, false) {
+		return false
+	}
+	if !yaml_emitter_process_scalar(emitter) {
+		return false
+	}
+	emitter.indent = emitter.indents[len(emitter.indents)-1]
+	emitter.indents = emitter.indents[:len(emitter.indents)-1]
+	emitter.state = emitter.states[len(emitter.states)-1]
+	emitter.states = emitter.states[:len(emitter.states)-1]
+	return true
+}
+
+// Expect SEQUENCE-START.
+func yaml_emitter_emit_sequence_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if !yaml_emitter_process_anchor(emitter) {
+		return false
+	}
+	if !yaml_emitter_process_tag(emitter) {
+		return false
+	}
+	if emitter.flow_level > 0 || emitter.canonical || event.sequence_style() == yaml_FLOW_SEQUENCE_STYLE ||
+		yaml_emitter_check_empty_sequence(emitter) {
+		emitter.state = yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE
+	} else {
+		emitter.state = yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE
+	}
+	return true
+}
+
+// Expect MAPPING-START.
+func yaml_emitter_emit_mapping_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+	if !yaml_emitter_process_anchor(emitter) {
+		return false
+	}
+	if !yaml_emitter_process_tag(emitter) {
+		return false
+	}
+	if emitter.flow_level > 0 || emitter.canonical || event.mapping_style() == yaml_FLOW_MAPPING_STYLE ||
+		yaml_emitter_check_empty_mapping(emitter) {
+		emitter.state = yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE
+	} else {
+		emitter.state = yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE
+	}
+	return true
+}
+
+// Check if the document content is an empty scalar.
+func yaml_emitter_check_empty_document(emitter *yaml_emitter_t) bool {
+	return false // [Go] Huh?
+}
+
+// Check if the next events represent an empty sequence.
+func yaml_emitter_check_empty_sequence(emitter *yaml_emitter_t) bool {
+	if len(emitter.events)-emitter.events_head < 2 {
+		return false
+	}
+	return emitter.events[emitter.events_head].typ == yaml_SEQUENCE_START_EVENT &&
+		emitter.events[emitter.events_head+1].typ == yaml_SEQUENCE_END_EVENT
+}
+
+// Check if the next events represent an empty mapping.
+func yaml_emitter_check_empty_mapping(emitter *yaml_emitter_t) bool {
+	if len(emitter.events)-emitter.events_head < 2 {
+		return false
+	}
+	return emitter.events[emitter.events_head].typ == yaml_MAPPING_START_EVENT &&
+		emitter.events[emitter.events_head+1].typ == yaml_MAPPING_END_EVENT
+}
+
+// Check if the next node can be expressed as a simple key.
+func yaml_emitter_check_simple_key(emitter *yaml_emitter_t) bool {
+	length := 0
+	switch emitter.events[emitter.events_head].typ {
+	case yaml_ALIAS_EVENT:
+		length += len(emitter.anchor_data.anchor)
+	case yaml_SCALAR_EVENT:
+		if emitter.scalar_data.multiline {
+			return false
+		}
+		length += len(emitter.anchor_data.anchor) +
+			len(emitter.tag_data.handle) +
+			len(emitter.tag_data.suffix) +
+			len(emitter.scalar_data.value)
+	case yaml_SEQUENCE_START_EVENT:
+		if !yaml_emitter_check_empty_sequence(emitter) {
+			return false
+		}
+		length += len(emitter.anchor_data.anchor) +
+			len(emitter.tag_data.handle) +
+			len(emitter.tag_data.suffix)
+	case yaml_MAPPING_START_EVENT:
+		if !yaml_emitter_check_empty_mapping(emitter) {
+			return false
+		}
+		length += len(emitter.anchor_data.anchor) +
+			len(emitter.tag_data.handle) +
+			len(emitter.tag_data.suffix)
+	default:
+		return false
+	}
+	return length <= 128
+}
+
+// Determine an acceptable scalar style.
+func yaml_emitter_select_scalar_style(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+
+	no_tag := len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0
+	if no_tag && !event.implicit && !event.quoted_implicit {
+		return yaml_emitter_set_emitter_error(emitter, "neither tag nor implicit flags are specified")
+	}
+
+	style := event.scalar_style()
+	if style == yaml_ANY_SCALAR_STYLE {
+		style = yaml_PLAIN_SCALAR_STYLE
+	}
+	if emitter.canonical {
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	}
+	if emitter.simple_key_context && emitter.scalar_data.multiline {
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	}
+
+	if style == yaml_PLAIN_SCALAR_STYLE {
+		if emitter.flow_level > 0 && !emitter.scalar_data.flow_plain_allowed ||
+			emitter.flow_level == 0 && !emitter.scalar_data.block_plain_allowed {
+			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+		}
+		if len(emitter.scalar_data.value) == 0 && (emitter.flow_level > 0 || emitter.simple_key_context) {
+			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+		}
+		if no_tag && !event.implicit {
+			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+		}
+	}
+	if style == yaml_SINGLE_QUOTED_SCALAR_STYLE {
+		if !emitter.scalar_data.single_quoted_allowed {
+			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+		}
+	}
+	if style == yaml_LITERAL_SCALAR_STYLE || style == yaml_FOLDED_SCALAR_STYLE {
+		if !emitter.scalar_data.block_allowed || emitter.flow_level > 0 || emitter.simple_key_context {
+			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+		}
+	}
+
+	if no_tag && !event.quoted_implicit && style != yaml_PLAIN_SCALAR_STYLE {
+		emitter.tag_data.handle = []byte{'!'}
+	}
+	emitter.scalar_data.style = style
+	return true
+}
+
+// Write an achor.
+func yaml_emitter_process_anchor(emitter *yaml_emitter_t) bool {
+	if emitter.anchor_data.anchor == nil {
+		return true
+	}
+	c := []byte{'&'}
+	if emitter.anchor_data.alias {
+		c[0] = '*'
+	}
+	if !yaml_emitter_write_indicator(emitter, c, true, false, false) {
+		return false
+	}
+	return yaml_emitter_write_anchor(emitter, emitter.anchor_data.anchor)
+}
+
+// Write a tag.
+func yaml_emitter_process_tag(emitter *yaml_emitter_t) bool {
+	if len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 {
+		return true
+	}
+	if len(emitter.tag_data.handle) > 0 {
+		if !yaml_emitter_write_tag_handle(emitter, emitter.tag_data.handle) {
+			return false
+		}
+		if len(emitter.tag_data.suffix) > 0 {
+			if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
+				return false
+			}
+		}
+	} else {
+		// [Go] Allocate these slices elsewhere.
+		if !yaml_emitter_write_indicator(emitter, []byte("!<"), true, false, false) {
+			return false
+		}
+		if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
+			return false
+		}
+		if !yaml_emitter_write_indicator(emitter, []byte{'>'}, false, false, false) {
+			return false
+		}
+	}
+	return true
+}
+
+// Write a scalar.
+func yaml_emitter_process_scalar(emitter *yaml_emitter_t) bool {
+	switch emitter.scalar_data.style {
+	case yaml_PLAIN_SCALAR_STYLE:
+		return yaml_emitter_write_plain_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+	case yaml_SINGLE_QUOTED_SCALAR_STYLE:
+		return yaml_emitter_write_single_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+	case yaml_DOUBLE_QUOTED_SCALAR_STYLE:
+		return yaml_emitter_write_double_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+	case yaml_LITERAL_SCALAR_STYLE:
+		return yaml_emitter_write_literal_scalar(emitter, emitter.scalar_data.value)
+
+	case yaml_FOLDED_SCALAR_STYLE:
+		return yaml_emitter_write_folded_scalar(emitter, emitter.scalar_data.value)
+	}
+	panic("unknown scalar style")
+}
+
+// Check if a %YAML directive is valid.
+func yaml_emitter_analyze_version_directive(emitter *yaml_emitter_t, version_directive *yaml_version_directive_t) bool {
+	if version_directive.major != 1 || version_directive.minor != 1 {
+		return yaml_emitter_set_emitter_error(emitter, "incompatible %YAML directive")
+	}
+	return true
+}
+
+// Check if a %TAG directive is valid.
+func yaml_emitter_analyze_tag_directive(emitter *yaml_emitter_t, tag_directive *yaml_tag_directive_t) bool {
+	handle := tag_directive.handle
+	prefix := tag_directive.prefix
+	if len(handle) == 0 {
+		return yaml_emitter_set_emitter_error(emitter, "tag handle must not be empty")
+	}
+	if handle[0] != '!' {
+		return yaml_emitter_set_emitter_error(emitter, "tag handle must start with '!'")
+	}
+	if handle[len(handle)-1] != '!' {
+		return yaml_emitter_set_emitter_error(emitter, "tag handle must end with '!'")
+	}
+	for i := 1; i < len(handle)-1; i += width(handle[i]) {
+		if !is_alpha(handle, i) {
+			return yaml_emitter_set_emitter_error(emitter, "tag handle must contain alphanumerical characters only")
+		}
+	}
+	if len(prefix) == 0 {
+		return yaml_emitter_set_emitter_error(emitter, "tag prefix must not be empty")
+	}
+	return true
+}
+
+// Check if an anchor is valid.
+func yaml_emitter_analyze_anchor(emitter *yaml_emitter_t, anchor []byte, alias bool) bool {
+	if len(anchor) == 0 {
+		problem := "anchor value must not be empty"
+		if alias {
+			problem = "alias value must not be empty"
+		}
+		return yaml_emitter_set_emitter_error(emitter, problem)
+	}
+	for i := 0; i < len(anchor); i += width(anchor[i]) {
+		if !is_alpha(anchor, i) {
+			problem := "anchor value must contain alphanumerical characters only"
+			if alias {
+				problem = "alias value must contain alphanumerical characters only"
+			}
+			return yaml_emitter_set_emitter_error(emitter, problem)
+		}
+	}
+	emitter.anchor_data.anchor = anchor
+	emitter.anchor_data.alias = alias
+	return true
+}
+
+// Check if a tag is valid.
+func yaml_emitter_analyze_tag(emitter *yaml_emitter_t, tag []byte) bool {
+	if len(tag) == 0 {
+		return yaml_emitter_set_emitter_error(emitter, "tag value must not be empty")
+	}
+	for i := 0; i < len(emitter.tag_directives); i++ {
+		tag_directive := &emitter.tag_directives[i]
+		if bytes.HasPrefix(tag, tag_directive.prefix) {
+			emitter.tag_data.handle = tag_directive.handle
+			emitter.tag_data.suffix = tag[len(tag_directive.prefix):]
+			return true
+		}
+	}
+	emitter.tag_data.suffix = tag
+	return true
+}
+
+// Check if a scalar is valid.
+func yaml_emitter_analyze_scalar(emitter *yaml_emitter_t, value []byte) bool {
+	var (
+		block_indicators   = false
+		flow_indicators    = false
+		line_breaks        = false
+		special_characters = false
+
+		leading_space  = false
+		leading_break  = false
+		trailing_space = false
+		trailing_break = false
+		break_space    = false
+		space_break    = false
+
+		preceded_by_whitespace = false
+		followed_by_whitespace  = false
+		previous_space          = false
+		previous_break          = false
+	)
+
+	emitter.scalar_data.value = value
+
+	if len(value) == 0 {
+		emitter.scalar_data.multiline = false
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = true
+		emitter.scalar_data.single_quoted_allowed = true
+		emitter.scalar_data.block_allowed = false
+		return true
+	}
+
+	if len(value) >= 3 && ((value[0] == '-' && value[1] == '-' && value[2] == '-') || (value[0] == '.' && value[1] == '.' && value[2] == '.')) {
+		block_indicators = true
+		flow_indicators = true
+	}
+
+	preceded_by_whitespace = true
+	for i, w := 0, 0; i < len(value); i += w {
+		w = width(value[i])
+		followed_by_whitespace = i+w >= len(value) || is_blank(value, i+w)
+
+		if i == 0 {
+			switch value[i] {
+			case '#', ',', '[', ']', '{', '}', '&', '*', '!', '|', '>', '\'', '"', '%', '@', '`':
+				flow_indicators = true
+				block_indicators = true
+			case '?', ':':
+				flow_indicators = true
+				if followed_by_whitespace {
+					block_indicators = true
+				}
+			case '-':
+				if followed_by_whitespace {
+					flow_indicators = true
+					block_indicators = true
+				}
+			}
+		} else {
+			switch value[i] {
+			case ',', '?', '[', ']', '{', '}':
+				flow_indicators = true
+			case ':':
+				flow_indicators = true
+				if followed_by_whitespace {
+					block_indicators = true
+				}
+			case '#':
+				if preceded_by_whitespace {
+					flow_indicators = true
+					block_indicators = true
+				}
+			}
+		}
+
+		if !is_printable(value, i) || !is_ascii(value, i) && !emitter.unicode {
+			special_characters = true
+		}
+		if is_space(value, i) {
+			if i == 0 {
+				leading_space = true
+			}
+			if i+width(value[i]) == len(value) {
+				trailing_space = true
+			}
+			if previous_break {
+				break_space = true
+			}
+			previous_space = true
+			previous_break = false
+		} else if is_break(value, i) {
+			line_breaks = true
+			if i == 0 {
+				leading_break = true
+			}
+			if i+width(value[i]) == len(value) {
+				trailing_break = true
+			}
+			if previous_space {
+				space_break = true
+			}
+			previous_space = false
+			previous_break = true
+		} else {
+			previous_space = false
+			previous_break = false
+		}
+
+		// [Go]: Why 'z'? Couldn't be the end of the string as that's the loop condition.
+		preceded_by_whitespace = is_blankz(value, i)
+	}
+
+	emitter.scalar_data.multiline = line_breaks
+	emitter.scalar_data.flow_plain_allowed = true
+	emitter.scalar_data.block_plain_allowed = true
+	emitter.scalar_data.single_quoted_allowed = true
+	emitter.scalar_data.block_allowed = true
+
+	if leading_space || leading_break || trailing_space || trailing_break {
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = false
+	}
+	if trailing_space {
+		emitter.scalar_data.block_allowed = false
+	}
+	if break_space {
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = false
+		emitter.scalar_data.single_quoted_allowed = false
+	}
+	if space_break || special_characters {
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = false
+		emitter.scalar_data.single_quoted_allowed = false
+		emitter.scalar_data.block_allowed = false
+	}
+	if line_breaks {
+		emitter.scalar_data.flow_plain_allowed = false
+		emitter.scalar_data.block_plain_allowed = false
+	}
+	if flow_indicators {
+		emitter.scalar_data.flow_plain_allowed = false
+	}
+	if block_indicators {
+		emitter.scalar_data.block_plain_allowed = false
+	}
+	return true
+}
+
+// Check if the event data is valid.
+func yaml_emitter_analyze_event(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+
+	emitter.anchor_data.anchor = nil
+	emitter.tag_data.handle = nil
+	emitter.tag_data.suffix = nil
+	emitter.scalar_data.value = nil
+
+	switch event.typ {
+	case yaml_ALIAS_EVENT:
+		if !yaml_emitter_analyze_anchor(emitter, event.anchor, true) {
+			return false
+		}
+
+	case yaml_SCALAR_EVENT:
+		if len(event.anchor) > 0 {
+			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+				return false
+			}
+		}
+		if len(event.tag) > 0 && (emitter.canonical || (!event.implicit && !event.quoted_implicit)) {
+			if !yaml_emitter_analyze_tag(emitter, event.tag) {
+				return false
+			}
+		}
+		if !yaml_emitter_analyze_scalar(emitter, event.value) {
+			return false
+		}
+
+	case yaml_SEQUENCE_START_EVENT:
+		if len(event.anchor) > 0 {
+			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+				return false
+			}
+		}
+		if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
+			if !yaml_emitter_analyze_tag(emitter, event.tag) {
+				return false
+			}
+		}
+
+	case yaml_MAPPING_START_EVENT:
+		if len(event.anchor) > 0 {
+			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+				return false
+			}
+		}
+		if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
+			if !yaml_emitter_analyze_tag(emitter, event.tag) {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+// Write the BOM character.
+func yaml_emitter_write_bom(emitter *yaml_emitter_t) bool {
+	if !flush(emitter) {
+		return false
+	}
+	pos := emitter.buffer_pos
+	emitter.buffer[pos+0] = '\xEF'
+	emitter.buffer[pos+1] = '\xBB'
+	emitter.buffer[pos+2] = '\xBF'
+	emitter.buffer_pos += 3
+	return true
+}
+
+func yaml_emitter_write_indent(emitter *yaml_emitter_t) bool {
+	indent := emitter.indent
+	if indent < 0 {
+		indent = 0
+	}
+	if !emitter.indention || emitter.column > indent || (emitter.column == indent && !emitter.whitespace) {
+		if !put_break(emitter) {
+			return false
+		}
+	}
+	for emitter.column < indent {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+	emitter.whitespace = true
+	emitter.indention = true
+	return true
+}
+
+func yaml_emitter_write_indicator(emitter *yaml_emitter_t, indicator []byte, need_whitespace, is_whitespace, is_indention bool) bool {
+	if need_whitespace && !emitter.whitespace {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+	if !write_all(emitter, indicator) {
+		return false
+	}
+	emitter.whitespace = is_whitespace
+	emitter.indention = (emitter.indention && is_indention)
+	emitter.open_ended = false
+	return true
+}
+
+func yaml_emitter_write_anchor(emitter *yaml_emitter_t, value []byte) bool {
+	if !write_all(emitter, value) {
+		return false
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_tag_handle(emitter *yaml_emitter_t, value []byte) bool {
+	if !emitter.whitespace {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+	if !write_all(emitter, value) {
+		return false
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_tag_content(emitter *yaml_emitter_t, value []byte, need_whitespace bool) bool {
+	if need_whitespace && !emitter.whitespace {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+	for i := 0; i < len(value); {
+		var must_write bool
+		switch value[i] {
+		case ';', '/', '?', ':', '@', '&', '=', '+', '$', ',', '_', '.', '~', '*', '\'', '(', ')', '[', ']':
+			must_write = true
+		default:
+			must_write = is_alpha(value, i)
+		}
+		if must_write {
+			if !write(emitter, value, &i) {
+				return false
+			}
+		} else {
+			w := width(value[i])
+			for k := 0; k < w; k++ {
+				octet := value[i]
+				i++
+				if !put(emitter, '%') {
+					return false
+				}
+
+				c := octet >> 4
+				if c < 10 {
+					c += '0'
+				} else {
+					c += 'A' - 10
+				}
+				if !put(emitter, c) {
+					return false
+				}
+
+				c = octet & 0x0f
+				if c < 10 {
+					c += '0'
+				} else {
+					c += 'A' - 10
+				}
+				if !put(emitter, c) {
+					return false
+				}
+			}
+		}
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_plain_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+	if !emitter.whitespace {
+		if !put(emitter, ' ') {
+			return false
+		}
+	}
+
+	spaces := false
+	breaks := false
+	for i := 0; i < len(value); {
+		if is_space(value, i) {
+			if allow_breaks && !spaces && emitter.column > emitter.best_width && !is_space(value, i+1) {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				i += width(value[i])
+			} else {
+				if !write(emitter, value, &i) {
+					return false
+				}
+			}
+			spaces = true
+		} else if is_break(value, i) {
+			if !breaks && value[i] == '\n' {
+				if !put_break(emitter) {
+					return false
+				}
+			}
+			if !write_break(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = true
+			breaks = true
+		} else {
+			if breaks {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+			if !write(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = false
+			spaces = false
+			breaks = false
+		}
+	}
+
+	emitter.whitespace = false
+	emitter.indention = false
+	if emitter.root_context {
+		emitter.open_ended = true
+	}
+
+	return true
+}
+
+func yaml_emitter_write_single_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+
+	if !yaml_emitter_write_indicator(emitter, []byte{'\''}, true, false, false) {
+		return false
+	}
+
+	spaces := false
+	breaks := false
+	for i := 0; i < len(value); {
+		if is_space(value, i) {
+			if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 && !is_space(value, i+1) {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				i += width(value[i])
+			} else {
+				if !write(emitter, value, &i) {
+					return false
+				}
+			}
+			spaces = true
+		} else if is_break(value, i) {
+			if !breaks && value[i] == '\n' {
+				if !put_break(emitter) {
+					return false
+				}
+			}
+			if !write_break(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = true
+			breaks = true
+		} else {
+			if breaks {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+			if value[i] == '\'' {
+				if !put(emitter, '\'') {
+					return false
+				}
+			}
+			if !write(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = false
+			spaces = false
+			breaks = false
+		}
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'\''}, false, false, false) {
+		return false
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_double_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+	spaces := false
+	if !yaml_emitter_write_indicator(emitter, []byte{'"'}, true, false, false) {
+		return false
+	}
+
+	for i := 0; i < len(value); {
+		if !is_printable(value, i) || (!emitter.unicode && !is_ascii(value, i)) ||
+			is_bom(value, i) || is_break(value, i) ||
+			value[i] == '"' || value[i] == '\\' {
+
+			octet := value[i]
+
+			var w int
+			var v rune
+			switch {
+			case octet&0x80 == 0x00:
+				w, v = 1, rune(octet&0x7F)
+			case octet&0xE0 == 0xC0:
+				w, v = 2, rune(octet&0x1F)
+			case octet&0xF0 == 0xE0:
+				w, v = 3, rune(octet&0x0F)
+			case octet&0xF8 == 0xF0:
+				w, v = 4, rune(octet&0x07)
+			}
+			for k := 1; k < w; k++ {
+				octet = value[i+k]
+				v = (v << 6) + (rune(octet) & 0x3F)
+			}
+			i += w
+
+			if !put(emitter, '\\') {
+				return false
+			}
+
+			var ok bool
+			switch v {
+			case 0x00:
+				ok = put(emitter, '0')
+			case 0x07:
+				ok = put(emitter, 'a')
+			case 0x08:
+				ok = put(emitter, 'b')
+			case 0x09:
+				ok = put(emitter, 't')
+			case 0x0A:
+				ok = put(emitter, 'n')
+			case 0x0b:
+				ok = put(emitter, 'v')
+			case 0x0c:
+				ok = put(emitter, 'f')
+			case 0x0d:
+				ok = put(emitter, 'r')
+			case 0x1b:
+				ok = put(emitter, 'e')
+			case 0x22:
+				ok = put(emitter, '"')
+			case 0x5c:
+				ok = put(emitter, '\\')
+			case 0x85:
+				ok = put(emitter, 'N')
+			case 0xA0:
+				ok = put(emitter, '_')
+			case 0x2028:
+				ok = put(emitter, 'L')
+			case 0x2029:
+				ok = put(emitter, 'P')
+			default:
+				if v <= 0xFF {
+					ok = put(emitter, 'x')
+					w = 2
+				} else if v <= 0xFFFF {
+					ok = put(emitter, 'u')
+					w = 4
+				} else {
+					ok = put(emitter, 'U')
+					w = 8
+				}
+				for k := (w - 1) * 4; ok && k >= 0; k -= 4 {
+					digit := byte((v >> uint(k)) & 0x0F)
+					if digit < 10 {
+						ok = put(emitter, digit+'0')
+					} else {
+						ok = put(emitter, digit+'A'-10)
+					}
+				}
+			}
+			if !ok {
+				return false
+			}
+			spaces = false
+		} else if is_space(value, i) {
+			if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				if is_space(value, i+1) {
+					if !put(emitter, '\\') {
+						return false
+					}
+				}
+				i += width(value[i])
+			} else if !write(emitter, value, &i) {
+				return false
+			}
+			spaces = true
+		} else {
+			if !write(emitter, value, &i) {
+				return false
+			}
+			spaces = false
+		}
+	}
+	if !yaml_emitter_write_indicator(emitter, []byte{'"'}, false, false, false) {
+		return false
+	}
+	emitter.whitespace = false
+	emitter.indention = false
+	return true
+}
+
+func yaml_emitter_write_block_scalar_hints(emitter *yaml_emitter_t, value []byte) bool {
+	if is_space(value, 0) || is_break(value, 0) {
+		indent_hint := []byte{'0' + byte(emitter.best_indent)}
+		if !yaml_emitter_write_indicator(emitter, indent_hint, false, false, false) {
+			return false
+		}
+	}
+
+	emitter.open_ended = false
+
+	var chomp_hint [1]byte
+	if len(value) == 0 {
+		chomp_hint[0] = '-'
+	} else {
+		i := len(value) - 1
+		for value[i]&0xC0 == 0x80 {
+			i--
+		}
+		if !is_break(value, i) {
+			chomp_hint[0] = '-'
+		} else if i == 0 {
+			chomp_hint[0] = '+'
+			emitter.open_ended = true
+		} else {
+			i--
+			for value[i]&0xC0 == 0x80 {
+				i--
+			}
+			if is_break(value, i) {
+				chomp_hint[0] = '+'
+				emitter.open_ended = true
+			}
+		}
+	}
+	if chomp_hint[0] != 0 {
+		if !yaml_emitter_write_indicator(emitter, chomp_hint[:], false, false, false) {
+			return false
+		}
+	}
+	return true
+}
+
+func yaml_emitter_write_literal_scalar(emitter *yaml_emitter_t, value []byte) bool {
+	if !yaml_emitter_write_indicator(emitter, []byte{'|'}, true, false, false) {
+		return false
+	}
+	if !yaml_emitter_write_block_scalar_hints(emitter, value) {
+		return false
+	}
+	if !put_break(emitter) {
+		return false
+	}
+	emitter.indention = true
+	emitter.whitespace = true
+	breaks := true
+	for i := 0; i < len(value); {
+		if is_break(value, i) {
+			if !write_break(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = true
+			breaks = true
+		} else {
+			if breaks {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+			}
+			if !write(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = false
+			breaks = false
+		}
+	}
+
+	return true
+}
+
+func yaml_emitter_write_folded_scalar(emitter *yaml_emitter_t, value []byte) bool {
+	if !yaml_emitter_write_indicator(emitter, []byte{'>'}, true, false, false) {
+		return false
+	}
+	if !yaml_emitter_write_block_scalar_hints(emitter, value) {
+		return false
+	}
+
+	if !put_break(emitter) {
+		return false
+	}
+	emitter.indention = true
+	emitter.whitespace = true
+
+	breaks := true
+	leading_spaces := true
+	for i := 0; i < len(value); {
+		if is_break(value, i) {
+			if !breaks && !leading_spaces && value[i] == '\n' {
+				k := 0
+				for is_break(value, k) {
+					k += width(value[k])
+				}
+				if !is_blankz(value, k) {
+					if !put_break(emitter) {
+						return false
+					}
+				}
+			}
+			if !write_break(emitter, value, &i) {
+				return false
+			}
+			emitter.indention = true
+			breaks = true
+		} else {
+			if breaks {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				leading_spaces = is_blank(value, i)
+			}
+			if !breaks && is_space(value, i) && !is_space(value, i+1) && emitter.column > emitter.best_width {
+				if !yaml_emitter_write_indent(emitter) {
+					return false
+				}
+				i += width(value[i])
+			} else {
+				if !write(emitter, value, &i) {
+					return false
+				}
+			}
+			emitter.indention = false
+			breaks = false
+		}
+	}
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/encode.go b/vendor/gopkg.in/yaml.v2/encode.go
new file mode 100644
index 0000000..84f8499
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/encode.go
@@ -0,0 +1,306 @@
+package yaml
+
+import (
+	"encoding"
+	"fmt"
+	"reflect"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type encoder struct {
+	emitter yaml_emitter_t
+	event   yaml_event_t
+	out     []byte
+	flow    bool
+}
+
+func newEncoder() (e *encoder) {
+	e = &encoder{}
+	e.must(yaml_emitter_initialize(&e.emitter))
+	yaml_emitter_set_output_string(&e.emitter, &e.out)
+	yaml_emitter_set_unicode(&e.emitter, true)
+	e.must(yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING))
+	e.emit()
+	e.must(yaml_document_start_event_initialize(&e.event, nil, nil, true))
+	e.emit()
+	return e
+}
+
+func (e *encoder) finish() {
+	e.must(yaml_document_end_event_initialize(&e.event, true))
+	e.emit()
+	e.emitter.open_ended = false
+	e.must(yaml_stream_end_event_initialize(&e.event))
+	e.emit()
+}
+
+func (e *encoder) destroy() {
+	yaml_emitter_delete(&e.emitter)
+}
+
+func (e *encoder) emit() {
+	// This will internally delete the e.event value.
+	if !yaml_emitter_emit(&e.emitter, &e.event) && e.event.typ != yaml_DOCUMENT_END_EVENT && e.event.typ != yaml_STREAM_END_EVENT {
+		e.must(false)
+	}
+}
+
+func (e *encoder) must(ok bool) {
+	if !ok {
+		msg := e.emitter.problem
+		if msg == "" {
+			msg = "unknown problem generating YAML content"
+		}
+		failf("%s", msg)
+	}
+}
+
+func (e *encoder) marshal(tag string, in reflect.Value) {
+	if !in.IsValid() {
+		e.nilv()
+		return
+	}
+	iface := in.Interface()
+	if m, ok := iface.(Marshaler); ok {
+		v, err := m.MarshalYAML()
+		if err != nil {
+			fail(err)
+		}
+		if v == nil {
+			e.nilv()
+			return
+		}
+		in = reflect.ValueOf(v)
+	} else if m, ok := iface.(encoding.TextMarshaler); ok {
+		text, err := m.MarshalText()
+		if err != nil {
+			fail(err)
+		}
+		in = reflect.ValueOf(string(text))
+	}
+	switch in.Kind() {
+	case reflect.Interface:
+		if in.IsNil() {
+			e.nilv()
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Map:
+		e.mapv(tag, in)
+	case reflect.Ptr:
+		if in.IsNil() {
+			e.nilv()
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Struct:
+		e.structv(tag, in)
+	case reflect.Slice:
+		if in.Type().Elem() == mapItemType {
+			e.itemsv(tag, in)
+		} else {
+			e.slicev(tag, in)
+		}
+	case reflect.String:
+		e.stringv(tag, in)
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		if in.Type() == durationType {
+			e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String()))
+		} else {
+			e.intv(tag, in)
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		e.uintv(tag, in)
+	case reflect.Float32, reflect.Float64:
+		e.floatv(tag, in)
+	case reflect.Bool:
+		e.boolv(tag, in)
+	default:
+		panic("cannot marshal type: " + in.Type().String())
+	}
+}
+
+func (e *encoder) mapv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		keys := keyList(in.MapKeys())
+		sort.Sort(keys)
+		for _, k := range keys {
+			e.marshal("", k)
+			e.marshal("", in.MapIndex(k))
+		}
+	})
+}
+
+func (e *encoder) itemsv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem)
+		for _, item := range slice {
+			e.marshal("", reflect.ValueOf(item.Key))
+			e.marshal("", reflect.ValueOf(item.Value))
+		}
+	})
+}
+
+func (e *encoder) structv(tag string, in reflect.Value) {
+	sinfo, err := getStructInfo(in.Type())
+	if err != nil {
+		panic(err)
+	}
+	e.mappingv(tag, func() {
+		for _, info := range sinfo.FieldsList {
+			var value reflect.Value
+			if info.Inline == nil {
+				value = in.Field(info.Num)
+			} else {
+				value = in.FieldByIndex(info.Inline)
+			}
+			if info.OmitEmpty && isZero(value) {
+				continue
+			}
+			e.marshal("", reflect.ValueOf(info.Key))
+			e.flow = info.Flow
+			e.marshal("", value)
+		}
+		if sinfo.InlineMap >= 0 {
+			m := in.Field(sinfo.InlineMap)
+			if m.Len() > 0 {
+				e.flow = false
+				keys := keyList(m.MapKeys())
+				sort.Sort(keys)
+				for _, k := range keys {
+					if _, found := sinfo.FieldsMap[k.String()]; found {
+						panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String()))
+					}
+					e.marshal("", k)
+					e.flow = false
+					e.marshal("", m.MapIndex(k))
+				}
+			}
+		}
+	})
+}
+
+func (e *encoder) mappingv(tag string, f func()) {
+	implicit := tag == ""
+	style := yaml_BLOCK_MAPPING_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_MAPPING_STYLE
+	}
+	e.must(yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	f()
+	e.must(yaml_mapping_end_event_initialize(&e.event))
+	e.emit()
+}
+
+func (e *encoder) slicev(tag string, in reflect.Value) {
+	implicit := tag == ""
+	style := yaml_BLOCK_SEQUENCE_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_SEQUENCE_STYLE
+	}
+	e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	n := in.Len()
+	for i := 0; i < n; i++ {
+		e.marshal("", in.Index(i))
+	}
+	e.must(yaml_sequence_end_event_initialize(&e.event))
+	e.emit()
+}
+
+// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
+//
+// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
+// in YAML 1.2 and by this package, but these should be marshalled quoted for
+// the time being for compatibility with other parsers.
+func isBase60Float(s string) (result bool) {
+	// Fast path.
+	if s == "" {
+		return false
+	}
+	c := s[0]
+	if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
+		return false
+	}
+	// Do the full match.
+	return base60float.MatchString(s)
+}
+
+// From http://yaml.org/type/float.html, except the regular expression there
+// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
+var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
+
+func (e *encoder) stringv(tag string, in reflect.Value) {
+	var style yaml_scalar_style_t
+	s := in.String()
+	rtag, rs := resolve("", s)
+	if rtag == yaml_BINARY_TAG {
+		if tag == "" || tag == yaml_STR_TAG {
+			tag = rtag
+			s = rs.(string)
+		} else if tag == yaml_BINARY_TAG {
+			failf("explicitly tagged !!binary data must be base64-encoded")
+		} else {
+			failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
+		}
+	}
+	if tag == "" && (rtag != yaml_STR_TAG || isBase60Float(s)) {
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	} else if strings.Contains(s, "\n") {
+		style = yaml_LITERAL_SCALAR_STYLE
+	} else {
+		style = yaml_PLAIN_SCALAR_STYLE
+	}
+	e.emitScalar(s, "", tag, style)
+}
+
+func (e *encoder) boolv(tag string, in reflect.Value) {
+	var s string
+	if in.Bool() {
+		s = "true"
+	} else {
+		s = "false"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) intv(tag string, in reflect.Value) {
+	s := strconv.FormatInt(in.Int(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) uintv(tag string, in reflect.Value) {
+	s := strconv.FormatUint(in.Uint(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) floatv(tag string, in reflect.Value) {
+	// FIXME: Handle 64 bits here.
+	s := strconv.FormatFloat(float64(in.Float()), 'g', -1, 32)
+	switch s {
+	case "+Inf":
+		s = ".inf"
+	case "-Inf":
+		s = "-.inf"
+	case "NaN":
+		s = ".nan"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) nilv() {
+	e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
+	implicit := tag == ""
+	e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
+	e.emit()
+}
diff --git a/vendor/gopkg.in/yaml.v2/encode_test.go b/vendor/gopkg.in/yaml.v2/encode_test.go
new file mode 100644
index 0000000..84099bd
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/encode_test.go
@@ -0,0 +1,501 @@
+package yaml_test
+
+import (
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+	"time"
+
+	. "gopkg.in/check.v1"
+	"gopkg.in/yaml.v2"
+	"net"
+	"os"
+)
+
+var marshalIntTest = 123
+
+var marshalTests = []struct {
+	value interface{}
+	data  string
+}{
+	{
+		nil,
+		"null\n",
+	}, {
+		&struct{}{},
+		"{}\n",
+	}, {
+		map[string]string{"v": "hi"},
+		"v: hi\n",
+	}, {
+		map[string]interface{}{"v": "hi"},
+		"v: hi\n",
+	}, {
+		map[string]string{"v": "true"},
+		"v: \"true\"\n",
+	}, {
+		map[string]string{"v": "false"},
+		"v: \"false\"\n",
+	}, {
+		map[string]interface{}{"v": true},
+		"v: true\n",
+	}, {
+		map[string]interface{}{"v": false},
+		"v: false\n",
+	}, {
+		map[string]interface{}{"v": 10},
+		"v: 10\n",
+	}, {
+		map[string]interface{}{"v": -10},
+		"v: -10\n",
+	}, {
+		map[string]uint{"v": 42},
+		"v: 42\n",
+	}, {
+		map[string]interface{}{"v": int64(4294967296)},
+		"v: 4294967296\n",
+	}, {
+		map[string]int64{"v": int64(4294967296)},
+		"v: 4294967296\n",
+	}, {
+		map[string]uint64{"v": 4294967296},
+		"v: 4294967296\n",
+	}, {
+		map[string]interface{}{"v": "10"},
+		"v: \"10\"\n",
+	}, {
+		map[string]interface{}{"v": 0.1},
+		"v: 0.1\n",
+	}, {
+		map[string]interface{}{"v": float64(0.1)},
+		"v: 0.1\n",
+	}, {
+		map[string]interface{}{"v": -0.1},
+		"v: -0.1\n",
+	}, {
+		map[string]interface{}{"v": math.Inf(+1)},
+		"v: .inf\n",
+	}, {
+		map[string]interface{}{"v": math.Inf(-1)},
+		"v: -.inf\n",
+	}, {
+		map[string]interface{}{"v": math.NaN()},
+		"v: .nan\n",
+	}, {
+		map[string]interface{}{"v": nil},
+		"v: null\n",
+	}, {
+		map[string]interface{}{"v": ""},
+		"v: \"\"\n",
+	}, {
+		map[string][]string{"v": []string{"A", "B"}},
+		"v:\n- A\n- B\n",
+	}, {
+		map[string][]string{"v": []string{"A", "B\nC"}},
+		"v:\n- A\n- |-\n  B\n  C\n",
+	}, {
+		map[string][]interface{}{"v": []interface{}{"A", 1, map[string][]int{"B": []int{2, 3}}}},
+		"v:\n- A\n- 1\n- B:\n  - 2\n  - 3\n",
+	}, {
+		map[string]interface{}{"a": map[interface{}]interface{}{"b": "c"}},
+		"a:\n  b: c\n",
+	}, {
+		map[string]interface{}{"a": "-"},
+		"a: '-'\n",
+	},
+
+	// Simple values.
+	{
+		&marshalIntTest,
+		"123\n",
+	},
+
+	// Structures
+	{
+		&struct{ Hello string }{"world"},
+		"hello: world\n",
+	}, {
+		&struct {
+			A struct {
+				B string
+			}
+		}{struct{ B string }{"c"}},
+		"a:\n  b: c\n",
+	}, {
+		&struct {
+			A *struct {
+				B string
+			}
+		}{&struct{ B string }{"c"}},
+		"a:\n  b: c\n",
+	}, {
+		&struct {
+			A *struct {
+				B string
+			}
+		}{},
+		"a: null\n",
+	}, {
+		&struct{ A int }{1},
+		"a: 1\n",
+	}, {
+		&struct{ A []int }{[]int{1, 2}},
+		"a:\n- 1\n- 2\n",
+	}, {
+		&struct {
+			B int "a"
+		}{1},
+		"a: 1\n",
+	}, {
+		&struct{ A bool }{true},
+		"a: true\n",
+	},
+
+	// Conditional flag
+	{
+		&struct {
+			A int "a,omitempty"
+			B int "b,omitempty"
+		}{1, 0},
+		"a: 1\n",
+	}, {
+		&struct {
+			A int "a,omitempty"
+			B int "b,omitempty"
+		}{0, 0},
+		"{}\n",
+	}, {
+		&struct {
+			A *struct{ X, y int } "a,omitempty,flow"
+		}{&struct{ X, y int }{1, 2}},
+		"a: {x: 1}\n",
+	}, {
+		&struct {
+			A *struct{ X, y int } "a,omitempty,flow"
+		}{nil},
+		"{}\n",
+	}, {
+		&struct {
+			A *struct{ X, y int } "a,omitempty,flow"
+		}{&struct{ X, y int }{}},
+		"a: {x: 0}\n",
+	}, {
+		&struct {
+			A struct{ X, y int } "a,omitempty,flow"
+		}{struct{ X, y int }{1, 2}},
+		"a: {x: 1}\n",
+	}, {
+		&struct {
+			A struct{ X, y int } "a,omitempty,flow"
+		}{struct{ X, y int }{0, 1}},
+		"{}\n",
+	}, {
+		&struct {
+			A float64 "a,omitempty"
+			B float64 "b,omitempty"
+		}{1, 0},
+		"a: 1\n",
+	},
+
+	// Flow flag
+	{
+		&struct {
+			A []int "a,flow"
+		}{[]int{1, 2}},
+		"a: [1, 2]\n",
+	}, {
+		&struct {
+			A map[string]string "a,flow"
+		}{map[string]string{"b": "c", "d": "e"}},
+		"a: {b: c, d: e}\n",
+	}, {
+		&struct {
+			A struct {
+				B, D string
+			} "a,flow"
+		}{struct{ B, D string }{"c", "e"}},
+		"a: {b: c, d: e}\n",
+	},
+
+	// Unexported field
+	{
+		&struct {
+			u int
+			A int
+		}{0, 1},
+		"a: 1\n",
+	},
+
+	// Ignored field
+	{
+		&struct {
+			A int
+			B int "-"
+		}{1, 2},
+		"a: 1\n",
+	},
+
+	// Struct inlining
+	{
+		&struct {
+			A int
+			C inlineB `yaml:",inline"`
+		}{1, inlineB{2, inlineC{3}}},
+		"a: 1\nb: 2\nc: 3\n",
+	},
+
+	// Map inlining
+	{
+		&struct {
+			A int
+			C map[string]int `yaml:",inline"`
+		}{1, map[string]int{"b": 2, "c": 3}},
+		"a: 1\nb: 2\nc: 3\n",
+	},
+
+	// Duration
+	{
+		map[string]time.Duration{"a": 3 * time.Second},
+		"a: 3s\n",
+	},
+
+	// Issue #24: bug in map merging logic.
+	{
+		map[string]string{"a": "<foo>"},
+		"a: <foo>\n",
+	},
+
+	// Issue #34: marshal unsupported base 60 floats quoted for compatibility
+	// with old YAML 1.1 parsers.
+	{
+		map[string]string{"a": "1:1"},
+		"a: \"1:1\"\n",
+	},
+
+	// Binary data.
+	{
+		map[string]string{"a": "\x00"},
+		"a: \"\\0\"\n",
+	}, {
+		map[string]string{"a": "\x80\x81\x82"},
+		"a: !!binary gIGC\n",
+	}, {
+		map[string]string{"a": strings.Repeat("\x90", 54)},
+		"a: !!binary |\n  " + strings.Repeat("kJCQ", 17) + "kJ\n  CQ\n",
+	},
+
+	// Ordered maps.
+	{
+		&yaml.MapSlice{{"b", 2}, {"a", 1}, {"d", 4}, {"c", 3}, {"sub", yaml.MapSlice{{"e", 5}}}},
+		"b: 2\na: 1\nd: 4\nc: 3\nsub:\n  e: 5\n",
+	},
+
+	// Encode unicode as utf-8 rather than in escaped form.
+	{
+		map[string]string{"a": "你好"},
+		"a: 你好\n",
+	},
+
+	// Support encoding.TextMarshaler.
+	{
+		map[string]net.IP{"a": net.IPv4(1, 2, 3, 4)},
+		"a: 1.2.3.4\n",
+	},
+	{
+		map[string]time.Time{"a": time.Unix(1424801979, 0)},
+		"a: 2015-02-24T18:19:39Z\n",
+	},
+
+	// Ensure strings containing ": " are quoted (reported as PR #43, but not reproducible).
+	{
+		map[string]string{"a": "b: c"},
+		"a: 'b: c'\n",
+	},
+
+	// Containing hash mark ('#') in string should be quoted
+	{
+		map[string]string{"a": "Hello #comment"},
+		"a: 'Hello #comment'\n",
+	},
+	{
+		map[string]string{"a": "你好 #comment"},
+		"a: '你好 #comment'\n",
+	},
+}
+
+func (s *S) TestMarshal(c *C) {
+	defer os.Setenv("TZ", os.Getenv("TZ"))
+	os.Setenv("TZ", "UTC")
+	for _, item := range marshalTests {
+		data, err := yaml.Marshal(item.value)
+		c.Assert(err, IsNil)
+		c.Assert(string(data), Equals, item.data)
+	}
+}
+
+var marshalErrorTests = []struct {
+	value interface{}
+	error string
+	panic string
+}{{
+	value: &struct {
+		B       int
+		inlineB ",inline"
+	}{1, inlineB{2, inlineC{3}}},
+	panic: `Duplicated key 'b' in struct struct \{ B int; .*`,
+}, {
+	value: &struct {
+		A int
+		B map[string]int ",inline"
+	}{1, map[string]int{"a": 2}},
+	panic: `Can't have key "a" in inlined map; conflicts with struct field`,
+}}
+
+func (s *S) TestMarshalErrors(c *C) {
+	for _, item := range marshalErrorTests {
+		if item.panic != "" {
+			c.Assert(func() { yaml.Marshal(item.value) }, PanicMatches, item.panic)
+		} else {
+			_, err := yaml.Marshal(item.value)
+			c.Assert(err, ErrorMatches, item.error)
+		}
+	}
+}
+
+func (s *S) TestMarshalTypeCache(c *C) {
+	var data []byte
+	var err error
+	func() {
+		type T struct{ A int }
+		data, err = yaml.Marshal(&T{})
+		c.Assert(err, IsNil)
+	}()
+	func() {
+		type T struct{ B int }
+		data, err = yaml.Marshal(&T{})
+		c.Assert(err, IsNil)
+	}()
+	c.Assert(string(data), Equals, "b: 0\n")
+}
+
+var marshalerTests = []struct {
+	data  string
+	value interface{}
+}{
+	{"_:\n  hi: there\n", map[interface{}]interface{}{"hi": "there"}},
+	{"_:\n- 1\n- A\n", []interface{}{1, "A"}},
+	{"_: 10\n", 10},
+	{"_: null\n", nil},
+	{"_: BAR!\n", "BAR!"},
+}
+
+type marshalerType struct {
+	value interface{}
+}
+
+func (o marshalerType) MarshalText() ([]byte, error) {
+	panic("MarshalText called on type with MarshalYAML")
+}
+
+func (o marshalerType) MarshalYAML() (interface{}, error) {
+	return o.value, nil
+}
+
+type marshalerValue struct {
+	Field marshalerType "_"
+}
+
+func (s *S) TestMarshaler(c *C) {
+	for _, item := range marshalerTests {
+		obj := &marshalerValue{}
+		obj.Field.value = item.value
+		data, err := yaml.Marshal(obj)
+		c.Assert(err, IsNil)
+		c.Assert(string(data), Equals, string(item.data))
+	}
+}
+
+func (s *S) TestMarshalerWholeDocument(c *C) {
+	obj := &marshalerType{}
+	obj.value = map[string]string{"hello": "world!"}
+	data, err := yaml.Marshal(obj)
+	c.Assert(err, IsNil)
+	c.Assert(string(data), Equals, "hello: world!\n")
+}
+
+type failingMarshaler struct{}
+
+func (ft *failingMarshaler) MarshalYAML() (interface{}, error) {
+	return nil, failingErr
+}
+
+func (s *S) TestMarshalerError(c *C) {
+	_, err := yaml.Marshal(&failingMarshaler{})
+	c.Assert(err, Equals, failingErr)
+}
+
+func (s *S) TestSortedOutput(c *C) {
+	order := []interface{}{
+		false,
+		true,
+		1,
+		uint(1),
+		1.0,
+		1.1,
+		1.2,
+		2,
+		uint(2),
+		2.0,
+		2.1,
+		"",
+		".1",
+		".2",
+		".a",
+		"1",
+		"2",
+		"a!10",
+		"a/2",
+		"a/10",
+		"a~10",
+		"ab/1",
+		"b/1",
+		"b/01",
+		"b/2",
+		"b/02",
+		"b/3",
+		"b/03",
+		"b1",
+		"b01",
+		"b3",
+		"c2.10",
+		"c10.2",
+		"d1",
+		"d12",
+		"d12a",
+	}
+	m := make(map[interface{}]int)
+	for _, k := range order {
+		m[k] = 1
+	}
+	data, err := yaml.Marshal(m)
+	c.Assert(err, IsNil)
+	out := "\n" + string(data)
+	last := 0
+	for i, k := range order {
+		repr := fmt.Sprint(k)
+		if s, ok := k.(string); ok {
+			if _, err = strconv.ParseFloat(repr, 32); s == "" || err == nil {
+				repr = `"` + repr + `"`
+			}
+		}
+		index := strings.Index(out, "\n"+repr+":")
+		if index == -1 {
+			c.Fatalf("%#v is not in the output: %#v", k, out)
+		}
+		if index < last {
+			c.Fatalf("%#v was generated before %#v: %q", k, order[i-1], out)
+		}
+		last = index
+	}
+}
diff --git a/vendor/gopkg.in/yaml.v2/example_embedded_test.go b/vendor/gopkg.in/yaml.v2/example_embedded_test.go
new file mode 100644
index 0000000..c8b241d
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/example_embedded_test.go
@@ -0,0 +1,41 @@
+package yaml_test
+
+import (
+	"fmt"
+	"log"
+
+        "gopkg.in/yaml.v2"
+)
+
+// An example showing how to unmarshal embedded
+// structs from YAML.
+
+type StructA struct {
+	A string `yaml:"a"`
+}
+
+type StructB struct {
+	// Embedded structs are not treated as embedded in YAML by default. To do that,
+	// add the ",inline" annotation below
+	StructA   `yaml:",inline"`
+	B string `yaml:"b"`
+}
+
+var data = `
+a: a string from struct A
+b: a string from struct B
+`
+
+func ExampleUnmarshal_embedded() {
+	var b StructB
+
+	err := yaml.Unmarshal([]byte(data), &b)
+	if err != nil {
+		log.Fatal("cannot unmarshal data: %v", err)
+	}
+        fmt.Println(b.A)
+        fmt.Println(b.B)
+        // Output:
+        // a string from struct A
+        // a string from struct B
+}
diff --git a/vendor/gopkg.in/yaml.v2/parserc.go b/vendor/gopkg.in/yaml.v2/parserc.go
new file mode 100644
index 0000000..81d05df
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/parserc.go
@@ -0,0 +1,1095 @@
+package yaml
+
+import (
+	"bytes"
+)
+
+// The parser implements the following grammar:
+//
+// stream               ::= STREAM-START implicit_document? explicit_document* STREAM-END
+// implicit_document    ::= block_node DOCUMENT-END*
+// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+// block_node_or_indentless_sequence    ::=
+//                          ALIAS
+//                          | properties (block_content | indentless_block_sequence)?
+//                          | block_content
+//                          | indentless_block_sequence
+// block_node           ::= ALIAS
+//                          | properties block_content?
+//                          | block_content
+// flow_node            ::= ALIAS
+//                          | properties flow_content?
+//                          | flow_content
+// properties           ::= TAG ANCHOR? | ANCHOR TAG?
+// block_content        ::= block_collection | flow_collection | SCALAR
+// flow_content         ::= flow_collection | SCALAR
+// block_collection     ::= block_sequence | block_mapping
+// flow_collection      ::= flow_sequence | flow_mapping
+// block_sequence       ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+// indentless_sequence  ::= (BLOCK-ENTRY block_node?)+
+// block_mapping        ::= BLOCK-MAPPING_START
+//                          ((KEY block_node_or_indentless_sequence?)?
+//                          (VALUE block_node_or_indentless_sequence?)?)*
+//                          BLOCK-END
+// flow_sequence        ::= FLOW-SEQUENCE-START
+//                          (flow_sequence_entry FLOW-ENTRY)*
+//                          flow_sequence_entry?
+//                          FLOW-SEQUENCE-END
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// flow_mapping         ::= FLOW-MAPPING-START
+//                          (flow_mapping_entry FLOW-ENTRY)*
+//                          flow_mapping_entry?
+//                          FLOW-MAPPING-END
+// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+
+// Peek the next token in the token queue.
+func peek_token(parser *yaml_parser_t) *yaml_token_t {
+	if parser.token_available || yaml_parser_fetch_more_tokens(parser) {
+		return &parser.tokens[parser.tokens_head]
+	}
+	return nil
+}
+
+// Remove the next token from the queue (must be called after peek_token).
+func skip_token(parser *yaml_parser_t) {
+	parser.token_available = false
+	parser.tokens_parsed++
+	parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN
+	parser.tokens_head++
+}
+
+// Get the next event.
+func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool {
+	// Erase the event object.
+	*event = yaml_event_t{}
+
+	// No events after the end of the stream or error.
+	if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE {
+		return true
+	}
+
+	// Generate the next event.
+	return yaml_parser_state_machine(parser, event)
+}
+
+// Set parser error.
+func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool {
+	parser.error = yaml_PARSER_ERROR
+	parser.problem = problem
+	parser.problem_mark = problem_mark
+	return false
+}
+
+func yaml_parser_set_parser_error_context(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string, problem_mark yaml_mark_t) bool {
+	parser.error = yaml_PARSER_ERROR
+	parser.context = context
+	parser.context_mark = context_mark
+	parser.problem = problem
+	parser.problem_mark = problem_mark
+	return false
+}
+
+// State dispatcher.
+func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool {
+	//trace("yaml_parser_state_machine", "state:", parser.state.String())
+
+	switch parser.state {
+	case yaml_PARSE_STREAM_START_STATE:
+		return yaml_parser_parse_stream_start(parser, event)
+
+	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+		return yaml_parser_parse_document_start(parser, event, true)
+
+	case yaml_PARSE_DOCUMENT_START_STATE:
+		return yaml_parser_parse_document_start(parser, event, false)
+
+	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+		return yaml_parser_parse_document_content(parser, event)
+
+	case yaml_PARSE_DOCUMENT_END_STATE:
+		return yaml_parser_parse_document_end(parser, event)
+
+	case yaml_PARSE_BLOCK_NODE_STATE:
+		return yaml_parser_parse_node(parser, event, true, false)
+
+	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+		return yaml_parser_parse_node(parser, event, true, true)
+
+	case yaml_PARSE_FLOW_NODE_STATE:
+		return yaml_parser_parse_node(parser, event, false, false)
+
+	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+		return yaml_parser_parse_block_sequence_entry(parser, event, true)
+
+	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+		return yaml_parser_parse_block_sequence_entry(parser, event, false)
+
+	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+		return yaml_parser_parse_indentless_sequence_entry(parser, event)
+
+	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return yaml_parser_parse_block_mapping_key(parser, event, true)
+
+	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+		return yaml_parser_parse_block_mapping_key(parser, event, false)
+
+	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+		return yaml_parser_parse_block_mapping_value(parser, event)
+
+	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+		return yaml_parser_parse_flow_sequence_entry(parser, event, true)
+
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+		return yaml_parser_parse_flow_sequence_entry(parser, event, false)
+
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+		return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event)
+
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+		return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event)
+
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+		return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event)
+
+	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+		return yaml_parser_parse_flow_mapping_key(parser, event, true)
+
+	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+		return yaml_parser_parse_flow_mapping_key(parser, event, false)
+
+	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+		return yaml_parser_parse_flow_mapping_value(parser, event, false)
+
+	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+		return yaml_parser_parse_flow_mapping_value(parser, event, true)
+
+	default:
+		panic("invalid parser state")
+	}
+}
+
+// Parse the production:
+// stream   ::= STREAM-START implicit_document? explicit_document* STREAM-END
+//              ************
+func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ != yaml_STREAM_START_TOKEN {
+		return yaml_parser_set_parser_error(parser, "did not find expected <stream-start>", token.start_mark)
+	}
+	parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE
+	*event = yaml_event_t{
+		typ:        yaml_STREAM_START_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.end_mark,
+		encoding:   token.encoding,
+	}
+	skip_token(parser)
+	return true
+}
+
+// Parse the productions:
+// implicit_document    ::= block_node DOCUMENT-END*
+//                          *
+// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+//                          *************************
+func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool {
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	// Parse extra document end indicators.
+	if !implicit {
+		for token.typ == yaml_DOCUMENT_END_TOKEN {
+			skip_token(parser)
+			token = peek_token(parser)
+			if token == nil {
+				return false
+			}
+		}
+	}
+
+	if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN &&
+		token.typ != yaml_TAG_DIRECTIVE_TOKEN &&
+		token.typ != yaml_DOCUMENT_START_TOKEN &&
+		token.typ != yaml_STREAM_END_TOKEN {
+		// Parse an implicit document.
+		if !yaml_parser_process_directives(parser, nil, nil) {
+			return false
+		}
+		parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
+		parser.state = yaml_PARSE_BLOCK_NODE_STATE
+
+		*event = yaml_event_t{
+			typ:        yaml_DOCUMENT_START_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+		}
+
+	} else if token.typ != yaml_STREAM_END_TOKEN {
+		// Parse an explicit document.
+		var version_directive *yaml_version_directive_t
+		var tag_directives []yaml_tag_directive_t
+		start_mark := token.start_mark
+		if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) {
+			return false
+		}
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_DOCUMENT_START_TOKEN {
+			yaml_parser_set_parser_error(parser,
+				"did not find expected <document start>", token.start_mark)
+			return false
+		}
+		parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
+		parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE
+		end_mark := token.end_mark
+
+		*event = yaml_event_t{
+			typ:               yaml_DOCUMENT_START_EVENT,
+			start_mark:        start_mark,
+			end_mark:          end_mark,
+			version_directive: version_directive,
+			tag_directives:    tag_directives,
+			implicit:          false,
+		}
+		skip_token(parser)
+
+	} else {
+		// Parse the stream end.
+		parser.state = yaml_PARSE_END_STATE
+		*event = yaml_event_t{
+			typ:        yaml_STREAM_END_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+		}
+		skip_token(parser)
+	}
+
+	return true
+}
+
+// Parse the productions:
+// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+//                                                    ***********
+//
+func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ == yaml_VERSION_DIRECTIVE_TOKEN ||
+		token.typ == yaml_TAG_DIRECTIVE_TOKEN ||
+		token.typ == yaml_DOCUMENT_START_TOKEN ||
+		token.typ == yaml_DOCUMENT_END_TOKEN ||
+		token.typ == yaml_STREAM_END_TOKEN {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+		return yaml_parser_process_empty_scalar(parser, event,
+			token.start_mark)
+	}
+	return yaml_parser_parse_node(parser, event, true, false)
+}
+
+// Parse the productions:
+// implicit_document    ::= block_node DOCUMENT-END*
+//                                     *************
+// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+//
+func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	start_mark := token.start_mark
+	end_mark := token.start_mark
+
+	implicit := true
+	if token.typ == yaml_DOCUMENT_END_TOKEN {
+		end_mark = token.end_mark
+		skip_token(parser)
+		implicit = false
+	}
+
+	parser.tag_directives = parser.tag_directives[:0]
+
+	parser.state = yaml_PARSE_DOCUMENT_START_STATE
+	*event = yaml_event_t{
+		typ:        yaml_DOCUMENT_END_EVENT,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		implicit:   implicit,
+	}
+	return true
+}
+
+// Parse the productions:
+// block_node_or_indentless_sequence    ::=
+//                          ALIAS
+//                          *****
+//                          | properties (block_content | indentless_block_sequence)?
+//                            **********  *
+//                          | block_content | indentless_block_sequence
+//                            *
+// block_node           ::= ALIAS
+//                          *****
+//                          | properties block_content?
+//                            ********** *
+//                          | block_content
+//                            *
+// flow_node            ::= ALIAS
+//                          *****
+//                          | properties flow_content?
+//                            ********** *
+//                          | flow_content
+//                            *
+// properties           ::= TAG ANCHOR? | ANCHOR TAG?
+//                          *************************
+// block_content        ::= block_collection | flow_collection | SCALAR
+//                                                               ******
+// flow_content         ::= flow_collection | SCALAR
+//                                            ******
+func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool {
+	//defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)()
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ == yaml_ALIAS_TOKEN {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+		*event = yaml_event_t{
+			typ:        yaml_ALIAS_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+			anchor:     token.value,
+		}
+		skip_token(parser)
+		return true
+	}
+
+	start_mark := token.start_mark
+	end_mark := token.start_mark
+
+	var tag_token bool
+	var tag_handle, tag_suffix, anchor []byte
+	var tag_mark yaml_mark_t
+	if token.typ == yaml_ANCHOR_TOKEN {
+		anchor = token.value
+		start_mark = token.start_mark
+		end_mark = token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ == yaml_TAG_TOKEN {
+			tag_token = true
+			tag_handle = token.value
+			tag_suffix = token.suffix
+			tag_mark = token.start_mark
+			end_mark = token.end_mark
+			skip_token(parser)
+			token = peek_token(parser)
+			if token == nil {
+				return false
+			}
+		}
+	} else if token.typ == yaml_TAG_TOKEN {
+		tag_token = true
+		tag_handle = token.value
+		tag_suffix = token.suffix
+		start_mark = token.start_mark
+		tag_mark = token.start_mark
+		end_mark = token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ == yaml_ANCHOR_TOKEN {
+			anchor = token.value
+			end_mark = token.end_mark
+			skip_token(parser)
+			token = peek_token(parser)
+			if token == nil {
+				return false
+			}
+		}
+	}
+
+	var tag []byte
+	if tag_token {
+		if len(tag_handle) == 0 {
+			tag = tag_suffix
+			tag_suffix = nil
+		} else {
+			for i := range parser.tag_directives {
+				if bytes.Equal(parser.tag_directives[i].handle, tag_handle) {
+					tag = append([]byte(nil), parser.tag_directives[i].prefix...)
+					tag = append(tag, tag_suffix...)
+					break
+				}
+			}
+			if len(tag) == 0 {
+				yaml_parser_set_parser_error_context(parser,
+					"while parsing a node", start_mark,
+					"found undefined tag handle", tag_mark)
+				return false
+			}
+		}
+	}
+
+	implicit := len(tag) == 0
+	if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN {
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_SEQUENCE_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
+		}
+		return true
+	}
+	if token.typ == yaml_SCALAR_TOKEN {
+		var plain_implicit, quoted_implicit bool
+		end_mark = token.end_mark
+		if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') {
+			plain_implicit = true
+		} else if len(tag) == 0 {
+			quoted_implicit = true
+		}
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+
+		*event = yaml_event_t{
+			typ:             yaml_SCALAR_EVENT,
+			start_mark:      start_mark,
+			end_mark:        end_mark,
+			anchor:          anchor,
+			tag:             tag,
+			value:           token.value,
+			implicit:        plain_implicit,
+			quoted_implicit: quoted_implicit,
+			style:           yaml_style_t(token.style),
+		}
+		skip_token(parser)
+		return true
+	}
+	if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN {
+		// [Go] Some of the events below can be merged as they differ only on style.
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_SEQUENCE_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_FLOW_SEQUENCE_STYLE),
+		}
+		return true
+	}
+	if token.typ == yaml_FLOW_MAPPING_START_TOKEN {
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_MAPPING_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_FLOW_MAPPING_STYLE),
+		}
+		return true
+	}
+	if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN {
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_SEQUENCE_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
+		}
+		return true
+	}
+	if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN {
+		end_mark = token.end_mark
+		parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE
+		*event = yaml_event_t{
+			typ:        yaml_MAPPING_START_EVENT,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			anchor:     anchor,
+			tag:        tag,
+			implicit:   implicit,
+			style:      yaml_style_t(yaml_BLOCK_MAPPING_STYLE),
+		}
+		return true
+	}
+	if len(anchor) > 0 || len(tag) > 0 {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+
+		*event = yaml_event_t{
+			typ:             yaml_SCALAR_EVENT,
+			start_mark:      start_mark,
+			end_mark:        end_mark,
+			anchor:          anchor,
+			tag:             tag,
+			implicit:        implicit,
+			quoted_implicit: false,
+			style:           yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
+		}
+		return true
+	}
+
+	context := "while parsing a flow node"
+	if block {
+		context = "while parsing a block node"
+	}
+	yaml_parser_set_parser_error_context(parser, context, start_mark,
+		"did not find expected node content", token.start_mark)
+	return false
+}
+
+// Parse the productions:
+// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+//                    ********************  *********** *             *********
+//
+func yaml_parser_parse_block_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+	if first {
+		token := peek_token(parser)
+		parser.marks = append(parser.marks, token.start_mark)
+		skip_token(parser)
+	}
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ == yaml_BLOCK_ENTRY_TOKEN {
+		mark := token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)
+			return yaml_parser_parse_node(parser, event, true, false)
+		} else {
+			parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE
+			return yaml_parser_process_empty_scalar(parser, event, mark)
+		}
+	}
+	if token.typ == yaml_BLOCK_END_TOKEN {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+		parser.marks = parser.marks[:len(parser.marks)-1]
+
+		*event = yaml_event_t{
+			typ:        yaml_SEQUENCE_END_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+		}
+
+		skip_token(parser)
+		return true
+	}
+
+	context_mark := parser.marks[len(parser.marks)-1]
+	parser.marks = parser.marks[:len(parser.marks)-1]
+	return yaml_parser_set_parser_error_context(parser,
+		"while parsing a block collection", context_mark,
+		"did not find expected '-' indicator", token.start_mark)
+}
+
+// Parse the productions:
+// indentless_sequence  ::= (BLOCK-ENTRY block_node?)+
+//                           *********** *
+func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ == yaml_BLOCK_ENTRY_TOKEN {
+		mark := token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_BLOCK_ENTRY_TOKEN &&
+			token.typ != yaml_KEY_TOKEN &&
+			token.typ != yaml_VALUE_TOKEN &&
+			token.typ != yaml_BLOCK_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)
+			return yaml_parser_parse_node(parser, event, true, false)
+		}
+		parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
+		return yaml_parser_process_empty_scalar(parser, event, mark)
+	}
+	parser.state = parser.states[len(parser.states)-1]
+	parser.states = parser.states[:len(parser.states)-1]
+
+	*event = yaml_event_t{
+		typ:        yaml_SEQUENCE_END_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.start_mark, // [Go] Shouldn't this be token.end_mark?
+	}
+	return true
+}
+
+// Parse the productions:
+// block_mapping        ::= BLOCK-MAPPING_START
+//                          *******************
+//                          ((KEY block_node_or_indentless_sequence?)?
+//                            *** *
+//                          (VALUE block_node_or_indentless_sequence?)?)*
+//
+//                          BLOCK-END
+//                          *********
+//
+func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+	if first {
+		token := peek_token(parser)
+		parser.marks = append(parser.marks, token.start_mark)
+		skip_token(parser)
+	}
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ == yaml_KEY_TOKEN {
+		mark := token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_KEY_TOKEN &&
+			token.typ != yaml_VALUE_TOKEN &&
+			token.typ != yaml_BLOCK_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE)
+			return yaml_parser_parse_node(parser, event, true, true)
+		} else {
+			parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE
+			return yaml_parser_process_empty_scalar(parser, event, mark)
+		}
+	} else if token.typ == yaml_BLOCK_END_TOKEN {
+		parser.state = parser.states[len(parser.states)-1]
+		parser.states = parser.states[:len(parser.states)-1]
+		parser.marks = parser.marks[:len(parser.marks)-1]
+		*event = yaml_event_t{
+			typ:        yaml_MAPPING_END_EVENT,
+			start_mark: token.start_mark,
+			end_mark:   token.end_mark,
+		}
+		skip_token(parser)
+		return true
+	}
+
+	context_mark := parser.marks[len(parser.marks)-1]
+	parser.marks = parser.marks[:len(parser.marks)-1]
+	return yaml_parser_set_parser_error_context(parser,
+		"while parsing a block mapping", context_mark,
+		"did not find expected key", token.start_mark)
+}
+
+// Parse the productions:
+// block_mapping        ::= BLOCK-MAPPING_START
+//
+//                          ((KEY block_node_or_indentless_sequence?)?
+//
+//                          (VALUE block_node_or_indentless_sequence?)?)*
+//                           ***** *
+//                          BLOCK-END
+//
+//
+func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ == yaml_VALUE_TOKEN {
+		mark := token.end_mark
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_KEY_TOKEN &&
+			token.typ != yaml_VALUE_TOKEN &&
+			token.typ != yaml_BLOCK_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_KEY_STATE)
+			return yaml_parser_parse_node(parser, event, true, true)
+		}
+		parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
+		return yaml_parser_process_empty_scalar(parser, event, mark)
+	}
+	parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
+	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Parse the productions:
+// flow_sequence        ::= FLOW-SEQUENCE-START
+//                          *******************
+//                          (flow_sequence_entry FLOW-ENTRY)*
+//                           *                   **********
+//                          flow_sequence_entry?
+//                          *
+//                          FLOW-SEQUENCE-END
+//                          *****************
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                          *
+//
+func yaml_parser_parse_flow_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+	if first {
+		token := peek_token(parser)
+		parser.marks = append(parser.marks, token.start_mark)
+		skip_token(parser)
+	}
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+		if !first {
+			if token.typ == yaml_FLOW_ENTRY_TOKEN {
+				skip_token(parser)
+				token = peek_token(parser)
+				if token == nil {
+					return false
+				}
+			} else {
+				context_mark := parser.marks[len(parser.marks)-1]
+				parser.marks = parser.marks[:len(parser.marks)-1]
+				return yaml_parser_set_parser_error_context(parser,
+					"while parsing a flow sequence", context_mark,
+					"did not find expected ',' or ']'", token.start_mark)
+			}
+		}
+
+		if token.typ == yaml_KEY_TOKEN {
+			parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE
+			*event = yaml_event_t{
+				typ:        yaml_MAPPING_START_EVENT,
+				start_mark: token.start_mark,
+				end_mark:   token.end_mark,
+				implicit:   true,
+				style:      yaml_style_t(yaml_FLOW_MAPPING_STYLE),
+			}
+			skip_token(parser)
+			return true
+		} else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE)
+			return yaml_parser_parse_node(parser, event, false, false)
+		}
+	}
+
+	parser.state = parser.states[len(parser.states)-1]
+	parser.states = parser.states[:len(parser.states)-1]
+	parser.marks = parser.marks[:len(parser.marks)-1]
+
+	*event = yaml_event_t{
+		typ:        yaml_SEQUENCE_END_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.end_mark,
+	}
+
+	skip_token(parser)
+	return true
+}
+
+//
+// Parse the productions:
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                                      *** *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ != yaml_VALUE_TOKEN &&
+		token.typ != yaml_FLOW_ENTRY_TOKEN &&
+		token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+		parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)
+		return yaml_parser_parse_node(parser, event, false, false)
+	}
+	mark := token.end_mark
+	skip_token(parser)
+	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE
+	return yaml_parser_process_empty_scalar(parser, event, mark)
+}
+
+// Parse the productions:
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                                                      ***** *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if token.typ == yaml_VALUE_TOKEN {
+		skip_token(parser)
+		token := peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)
+			return yaml_parser_parse_node(parser, event, false, false)
+		}
+	}
+	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE
+	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Parse the productions:
+// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                                                                      *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE
+	*event = yaml_event_t{
+		typ:        yaml_MAPPING_END_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.start_mark, // [Go] Shouldn't this be end_mark?
+	}
+	return true
+}
+
+// Parse the productions:
+// flow_mapping         ::= FLOW-MAPPING-START
+//                          ******************
+//                          (flow_mapping_entry FLOW-ENTRY)*
+//                           *                  **********
+//                          flow_mapping_entry?
+//                          ******************
+//                          FLOW-MAPPING-END
+//                          ****************
+// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                          *           *** *
+//
+func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+	if first {
+		token := peek_token(parser)
+		parser.marks = append(parser.marks, token.start_mark)
+		skip_token(parser)
+	}
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+		if !first {
+			if token.typ == yaml_FLOW_ENTRY_TOKEN {
+				skip_token(parser)
+				token = peek_token(parser)
+				if token == nil {
+					return false
+				}
+			} else {
+				context_mark := parser.marks[len(parser.marks)-1]
+				parser.marks = parser.marks[:len(parser.marks)-1]
+				return yaml_parser_set_parser_error_context(parser,
+					"while parsing a flow mapping", context_mark,
+					"did not find expected ',' or '}'", token.start_mark)
+			}
+		}
+
+		if token.typ == yaml_KEY_TOKEN {
+			skip_token(parser)
+			token = peek_token(parser)
+			if token == nil {
+				return false
+			}
+			if token.typ != yaml_VALUE_TOKEN &&
+				token.typ != yaml_FLOW_ENTRY_TOKEN &&
+				token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+				parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE)
+				return yaml_parser_parse_node(parser, event, false, false)
+			} else {
+				parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE
+				return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+			}
+		} else if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)
+			return yaml_parser_parse_node(parser, event, false, false)
+		}
+	}
+
+	parser.state = parser.states[len(parser.states)-1]
+	parser.states = parser.states[:len(parser.states)-1]
+	parser.marks = parser.marks[:len(parser.marks)-1]
+	*event = yaml_event_t{
+		typ:        yaml_MAPPING_END_EVENT,
+		start_mark: token.start_mark,
+		end_mark:   token.end_mark,
+	}
+	skip_token(parser)
+	return true
+}
+
+// Parse the productions:
+// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+//                                   *                  ***** *
+//
+func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool {
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+	if empty {
+		parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
+		return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+	}
+	if token.typ == yaml_VALUE_TOKEN {
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+		if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+			parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE)
+			return yaml_parser_parse_node(parser, event, false, false)
+		}
+	}
+	parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
+	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Generate an empty scalar event.
+func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool {
+	*event = yaml_event_t{
+		typ:        yaml_SCALAR_EVENT,
+		start_mark: mark,
+		end_mark:   mark,
+		value:      nil, // Empty
+		implicit:   true,
+		style:      yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
+	}
+	return true
+}
+
+var default_tag_directives = []yaml_tag_directive_t{
+	{[]byte("!"), []byte("!")},
+	{[]byte("!!"), []byte("tag:yaml.org,2002:")},
+}
+
+// Parse directives.
+func yaml_parser_process_directives(parser *yaml_parser_t,
+	version_directive_ref **yaml_version_directive_t,
+	tag_directives_ref *[]yaml_tag_directive_t) bool {
+
+	var version_directive *yaml_version_directive_t
+	var tag_directives []yaml_tag_directive_t
+
+	token := peek_token(parser)
+	if token == nil {
+		return false
+	}
+
+	for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN {
+		if token.typ == yaml_VERSION_DIRECTIVE_TOKEN {
+			if version_directive != nil {
+				yaml_parser_set_parser_error(parser,
+					"found duplicate %YAML directive", token.start_mark)
+				return false
+			}
+			if token.major != 1 || token.minor != 1 {
+				yaml_parser_set_parser_error(parser,
+					"found incompatible YAML document", token.start_mark)
+				return false
+			}
+			version_directive = &yaml_version_directive_t{
+				major: token.major,
+				minor: token.minor,
+			}
+		} else if token.typ == yaml_TAG_DIRECTIVE_TOKEN {
+			value := yaml_tag_directive_t{
+				handle: token.value,
+				prefix: token.prefix,
+			}
+			if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) {
+				return false
+			}
+			tag_directives = append(tag_directives, value)
+		}
+
+		skip_token(parser)
+		token = peek_token(parser)
+		if token == nil {
+			return false
+		}
+	}
+
+	for i := range default_tag_directives {
+		if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) {
+			return false
+		}
+	}
+
+	if version_directive_ref != nil {
+		*version_directive_ref = version_directive
+	}
+	if tag_directives_ref != nil {
+		*tag_directives_ref = tag_directives
+	}
+	return true
+}
+
+// Append a tag directive to the directives stack.
+func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool {
+	for i := range parser.tag_directives {
+		if bytes.Equal(value.handle, parser.tag_directives[i].handle) {
+			if allow_duplicates {
+				return true
+			}
+			return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark)
+		}
+	}
+
+	// [Go] I suspect the copy is unnecessary. This was likely done
+	// because there was no way to track ownership of the data.
+	value_copy := yaml_tag_directive_t{
+		handle: make([]byte, len(value.handle)),
+		prefix: make([]byte, len(value.prefix)),
+	}
+	copy(value_copy.handle, value.handle)
+	copy(value_copy.prefix, value.prefix)
+	parser.tag_directives = append(parser.tag_directives, value_copy)
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/readerc.go b/vendor/gopkg.in/yaml.v2/readerc.go
new file mode 100644
index 0000000..f450791
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/readerc.go
@@ -0,0 +1,394 @@
+package yaml
+
+import (
+	"io"
+)
+
+// Set the reader error and return 0.
+func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
+	parser.error = yaml_READER_ERROR
+	parser.problem = problem
+	parser.problem_offset = offset
+	parser.problem_value = value
+	return false
+}
+
+// Byte order marks.
+const (
+	bom_UTF8    = "\xef\xbb\xbf"
+	bom_UTF16LE = "\xff\xfe"
+	bom_UTF16BE = "\xfe\xff"
+)
+
+// Determine the input stream encoding by checking the BOM symbol. If no BOM is
+// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
+func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
+	// Ensure that we had enough bytes in the raw buffer.
+	for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
+		if !yaml_parser_update_raw_buffer(parser) {
+			return false
+		}
+	}
+
+	// Determine the encoding.
+	buf := parser.raw_buffer
+	pos := parser.raw_buffer_pos
+	avail := len(buf) - pos
+	if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
+		parser.encoding = yaml_UTF16LE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
+		parser.encoding = yaml_UTF16BE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
+		parser.encoding = yaml_UTF8_ENCODING
+		parser.raw_buffer_pos += 3
+		parser.offset += 3
+	} else {
+		parser.encoding = yaml_UTF8_ENCODING
+	}
+	return true
+}
+
+// Update the raw buffer.
+func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
+	size_read := 0
+
+	// Return if the raw buffer is full.
+	if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
+		return true
+	}
+
+	// Return on EOF.
+	if parser.eof {
+		return true
+	}
+
+	// Move the remaining bytes in the raw buffer to the beginning.
+	if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
+		copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
+	}
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
+	parser.raw_buffer_pos = 0
+
+	// Call the read handler to fill the buffer.
+	size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
+	if err == io.EOF {
+		parser.eof = true
+	} else if err != nil {
+		return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
+	}
+	return true
+}
+
+// Ensure that the buffer contains at least `length` characters.
+// Return true on success, false on failure.
+//
+// The length is supposed to be significantly less that the buffer size.
+func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
+	if parser.read_handler == nil {
+		panic("read handler must be set")
+	}
+
+	// If the EOF flag is set and the raw buffer is empty, do nothing.
+	if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
+		return true
+	}
+
+	// Return if the buffer contains enough characters.
+	if parser.unread >= length {
+		return true
+	}
+
+	// Determine the input encoding if it is not known yet.
+	if parser.encoding == yaml_ANY_ENCODING {
+		if !yaml_parser_determine_encoding(parser) {
+			return false
+		}
+	}
+
+	// Move the unread characters to the beginning of the buffer.
+	buffer_len := len(parser.buffer)
+	if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
+		copy(parser.buffer, parser.buffer[parser.buffer_pos:])
+		buffer_len -= parser.buffer_pos
+		parser.buffer_pos = 0
+	} else if parser.buffer_pos == buffer_len {
+		buffer_len = 0
+		parser.buffer_pos = 0
+	}
+
+	// Open the whole buffer for writing, and cut it before returning.
+	parser.buffer = parser.buffer[:cap(parser.buffer)]
+
+	// Fill the buffer until it has enough characters.
+	first := true
+	for parser.unread < length {
+
+		// Fill the raw buffer if necessary.
+		if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
+			if !yaml_parser_update_raw_buffer(parser) {
+				parser.buffer = parser.buffer[:buffer_len]
+				return false
+			}
+		}
+		first = false
+
+		// Decode the raw buffer.
+	inner:
+		for parser.raw_buffer_pos != len(parser.raw_buffer) {
+			var value rune
+			var width int
+
+			raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
+
+			// Decode the next character.
+			switch parser.encoding {
+			case yaml_UTF8_ENCODING:
+				// Decode a UTF-8 character.  Check RFC 3629
+				// (http://www.ietf.org/rfc/rfc3629.txt) for more details.
+				//
+				// The following table (taken from the RFC) is used for
+				// decoding.
+				//
+				//    Char. number range |        UTF-8 octet sequence
+				//      (hexadecimal)    |              (binary)
+				//   --------------------+------------------------------------
+				//   0000 0000-0000 007F | 0xxxxxxx
+				//   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
+				//   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
+				//   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				//
+				// Additionally, the characters in the range 0xD800-0xDFFF
+				// are prohibited as they are reserved for use with UTF-16
+				// surrogate pairs.
+
+				// Determine the length of the UTF-8 sequence.
+				octet := parser.raw_buffer[parser.raw_buffer_pos]
+				switch {
+				case octet&0x80 == 0x00:
+					width = 1
+				case octet&0xE0 == 0xC0:
+					width = 2
+				case octet&0xF0 == 0xE0:
+					width = 3
+				case octet&0xF8 == 0xF0:
+					width = 4
+				default:
+					// The leading octet is invalid.
+					return yaml_parser_set_reader_error(parser,
+						"invalid leading UTF-8 octet",
+						parser.offset, int(octet))
+				}
+
+				// Check if the raw buffer contains an incomplete character.
+				if width > raw_unread {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-8 octet sequence",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Decode the leading octet.
+				switch {
+				case octet&0x80 == 0x00:
+					value = rune(octet & 0x7F)
+				case octet&0xE0 == 0xC0:
+					value = rune(octet & 0x1F)
+				case octet&0xF0 == 0xE0:
+					value = rune(octet & 0x0F)
+				case octet&0xF8 == 0xF0:
+					value = rune(octet & 0x07)
+				default:
+					value = 0
+				}
+
+				// Check and decode the trailing octets.
+				for k := 1; k < width; k++ {
+					octet = parser.raw_buffer[parser.raw_buffer_pos+k]
+
+					// Check if the octet is valid.
+					if (octet & 0xC0) != 0x80 {
+						return yaml_parser_set_reader_error(parser,
+							"invalid trailing UTF-8 octet",
+							parser.offset+k, int(octet))
+					}
+
+					// Decode the octet.
+					value = (value << 6) + rune(octet&0x3F)
+				}
+
+				// Check the length of the sequence against the value.
+				switch {
+				case width == 1:
+				case width == 2 && value >= 0x80:
+				case width == 3 && value >= 0x800:
+				case width == 4 && value >= 0x10000:
+				default:
+					return yaml_parser_set_reader_error(parser,
+						"invalid length of a UTF-8 sequence",
+						parser.offset, -1)
+				}
+
+				// Check the range of the value.
+				if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
+					return yaml_parser_set_reader_error(parser,
+						"invalid Unicode character",
+						parser.offset, int(value))
+				}
+
+			case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
+				var low, high int
+				if parser.encoding == yaml_UTF16LE_ENCODING {
+					low, high = 0, 1
+				} else {
+					low, high = 1, 0
+				}
+
+				// The UTF-16 encoding is not as simple as one might
+				// naively think.  Check RFC 2781
+				// (http://www.ietf.org/rfc/rfc2781.txt).
+				//
+				// Normally, two subsequent bytes describe a Unicode
+				// character.  However a special technique (called a
+				// surrogate pair) is used for specifying character
+				// values larger than 0xFFFF.
+				//
+				// A surrogate pair consists of two pseudo-characters:
+				//      high surrogate area (0xD800-0xDBFF)
+				//      low surrogate area (0xDC00-0xDFFF)
+				//
+				// The following formulas are used for decoding
+				// and encoding characters using surrogate pairs:
+				//
+				//  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
+				//  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
+				//  W1 = 110110yyyyyyyyyy
+				//  W2 = 110111xxxxxxxxxx
+				//
+				// where U is the character value, W1 is the high surrogate
+				// area, W2 is the low surrogate area.
+
+				// Check for incomplete UTF-16 character.
+				if raw_unread < 2 {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-16 character",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Get the character.
+				value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
+					(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
+
+				// Check for unexpected low surrogate area.
+				if value&0xFC00 == 0xDC00 {
+					return yaml_parser_set_reader_error(parser,
+						"unexpected low surrogate area",
+						parser.offset, int(value))
+				}
+
+				// Check for a high surrogate area.
+				if value&0xFC00 == 0xD800 {
+					width = 4
+
+					// Check for incomplete surrogate pair.
+					if raw_unread < 4 {
+						if parser.eof {
+							return yaml_parser_set_reader_error(parser,
+								"incomplete UTF-16 surrogate pair",
+								parser.offset, -1)
+						}
+						break inner
+					}
+
+					// Get the next character.
+					value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
+						(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
+
+					// Check for a low surrogate area.
+					if value2&0xFC00 != 0xDC00 {
+						return yaml_parser_set_reader_error(parser,
+							"expected low surrogate area",
+							parser.offset+2, int(value2))
+					}
+
+					// Generate the value of the surrogate pair.
+					value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
+				} else {
+					width = 2
+				}
+
+			default:
+				panic("impossible")
+			}
+
+			// Check if the character is in the allowed range:
+			//      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)
+			//      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)
+			//      | [#x10000-#x10FFFF]                        (32 bit)
+			switch {
+			case value == 0x09:
+			case value == 0x0A:
+			case value == 0x0D:
+			case value >= 0x20 && value <= 0x7E:
+			case value == 0x85:
+			case value >= 0xA0 && value <= 0xD7FF:
+			case value >= 0xE000 && value <= 0xFFFD:
+			case value >= 0x10000 && value <= 0x10FFFF:
+			default:
+				return yaml_parser_set_reader_error(parser,
+					"control characters are not allowed",
+					parser.offset, int(value))
+			}
+
+			// Move the raw pointers.
+			parser.raw_buffer_pos += width
+			parser.offset += width
+
+			// Finally put the character into the buffer.
+			if value <= 0x7F {
+				// 0000 0000-0000 007F . 0xxxxxxx
+				parser.buffer[buffer_len+0] = byte(value)
+				buffer_len += 1
+			} else if value <= 0x7FF {
+				// 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
+				parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
+				buffer_len += 2
+			} else if value <= 0xFFFF {
+				// 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
+				buffer_len += 3
+			} else {
+				// 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
+				buffer_len += 4
+			}
+
+			parser.unread++
+		}
+
+		// On EOF, put NUL into the buffer and return.
+		if parser.eof {
+			parser.buffer[buffer_len] = 0
+			buffer_len++
+			parser.unread++
+			break
+		}
+	}
+	parser.buffer = parser.buffer[:buffer_len]
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/resolve.go b/vendor/gopkg.in/yaml.v2/resolve.go
new file mode 100644
index 0000000..232313c
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/resolve.go
@@ -0,0 +1,208 @@
+package yaml
+
+import (
+	"encoding/base64"
+	"math"
+	"regexp"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+type resolveMapItem struct {
+	value interface{}
+	tag   string
+}
+
+var resolveTable = make([]byte, 256)
+var resolveMap = make(map[string]resolveMapItem)
+
+func init() {
+	t := resolveTable
+	t[int('+')] = 'S' // Sign
+	t[int('-')] = 'S'
+	for _, c := range "0123456789" {
+		t[int(c)] = 'D' // Digit
+	}
+	for _, c := range "yYnNtTfFoO~" {
+		t[int(c)] = 'M' // In map
+	}
+	t[int('.')] = '.' // Float (potentially in map)
+
+	var resolveMapList = []struct {
+		v   interface{}
+		tag string
+		l   []string
+	}{
+		{true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
+		{true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
+		{true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
+		{false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
+		{false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
+		{false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
+		{nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
+		{math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
+		{math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
+		{"<<", yaml_MERGE_TAG, []string{"<<"}},
+	}
+
+	m := resolveMap
+	for _, item := range resolveMapList {
+		for _, s := range item.l {
+			m[s] = resolveMapItem{item.v, item.tag}
+		}
+	}
+}
+
+const longTagPrefix = "tag:yaml.org,2002:"
+
+func shortTag(tag string) string {
+	// TODO This can easily be made faster and produce less garbage.
+	if strings.HasPrefix(tag, longTagPrefix) {
+		return "!!" + tag[len(longTagPrefix):]
+	}
+	return tag
+}
+
+func longTag(tag string) string {
+	if strings.HasPrefix(tag, "!!") {
+		return longTagPrefix + tag[2:]
+	}
+	return tag
+}
+
+func resolvableTag(tag string) bool {
+	switch tag {
+	case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG:
+		return true
+	}
+	return false
+}
+
+var yamlStyleFloat = regexp.MustCompile(`^[-+]?[0-9]*\.?[0-9]+([eE][-+][0-9]+)?$`)
+
+func resolve(tag string, in string) (rtag string, out interface{}) {
+	if !resolvableTag(tag) {
+		return tag, in
+	}
+
+	defer func() {
+		switch tag {
+		case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
+			return
+		}
+		failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag))
+	}()
+
+	// Any data is accepted as a !!str or !!binary.
+	// Otherwise, the prefix is enough of a hint about what it might be.
+	hint := byte('N')
+	if in != "" {
+		hint = resolveTable[in[0]]
+	}
+	if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
+		// Handle things we can lookup in a map.
+		if item, ok := resolveMap[in]; ok {
+			return item.tag, item.value
+		}
+
+		// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
+		// are purposefully unsupported here. They're still quoted on
+		// the way out for compatibility with other parser, though.
+
+		switch hint {
+		case 'M':
+			// We've already checked the map above.
+
+		case '.':
+			// Not in the map, so maybe a normal float.
+			floatv, err := strconv.ParseFloat(in, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+
+		case 'D', 'S':
+			// Int, float, or timestamp.
+			plain := strings.Replace(in, "_", "", -1)
+			intv, err := strconv.ParseInt(plain, 0, 64)
+			if err == nil {
+				if intv == int64(int(intv)) {
+					return yaml_INT_TAG, int(intv)
+				} else {
+					return yaml_INT_TAG, intv
+				}
+			}
+			uintv, err := strconv.ParseUint(plain, 0, 64)
+			if err == nil {
+				return yaml_INT_TAG, uintv
+			}
+			if yamlStyleFloat.MatchString(plain) {
+				floatv, err := strconv.ParseFloat(plain, 64)
+				if err == nil {
+					return yaml_FLOAT_TAG, floatv
+				}
+			}
+			if strings.HasPrefix(plain, "0b") {
+				intv, err := strconv.ParseInt(plain[2:], 2, 64)
+				if err == nil {
+					if intv == int64(int(intv)) {
+						return yaml_INT_TAG, int(intv)
+					} else {
+						return yaml_INT_TAG, intv
+					}
+				}
+				uintv, err := strconv.ParseUint(plain[2:], 2, 64)
+				if err == nil {
+					return yaml_INT_TAG, uintv
+				}
+			} else if strings.HasPrefix(plain, "-0b") {
+				intv, err := strconv.ParseInt(plain[3:], 2, 64)
+				if err == nil {
+					if intv == int64(int(intv)) {
+						return yaml_INT_TAG, -int(intv)
+					} else {
+						return yaml_INT_TAG, -intv
+					}
+				}
+			}
+			// XXX Handle timestamps here.
+
+		default:
+			panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
+		}
+	}
+	if tag == yaml_BINARY_TAG {
+		return yaml_BINARY_TAG, in
+	}
+	if utf8.ValidString(in) {
+		return yaml_STR_TAG, in
+	}
+	return yaml_BINARY_TAG, encodeBase64(in)
+}
+
+// encodeBase64 encodes s as base64 that is broken up into multiple lines
+// as appropriate for the resulting length.
+func encodeBase64(s string) string {
+	const lineLen = 70
+	encLen := base64.StdEncoding.EncodedLen(len(s))
+	lines := encLen/lineLen + 1
+	buf := make([]byte, encLen*2+lines)
+	in := buf[0:encLen]
+	out := buf[encLen:]
+	base64.StdEncoding.Encode(in, []byte(s))
+	k := 0
+	for i := 0; i < len(in); i += lineLen {
+		j := i + lineLen
+		if j > len(in) {
+			j = len(in)
+		}
+		k += copy(out[k:], in[i:j])
+		if lines > 1 {
+			out[k] = '\n'
+			k++
+		}
+	}
+	return string(out[:k])
+}
diff --git a/vendor/gopkg.in/yaml.v2/scannerc.go b/vendor/gopkg.in/yaml.v2/scannerc.go
new file mode 100644
index 0000000..0744844
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/scannerc.go
@@ -0,0 +1,2711 @@
+package yaml
+
+import (
+	"bytes"
+	"fmt"
+)
+
+// Introduction
+// ************
+//
+// The following notes assume that you are familiar with the YAML specification
+// (http://yaml.org/spec/1.2/spec.html).  We mostly follow it, although in
+// some cases we are less restrictive that it requires.
+//
+// The process of transforming a YAML stream into a sequence of events is
+// divided on two steps: Scanning and Parsing.
+//
+// The Scanner transforms the input stream into a sequence of tokens, while the
+// parser transform the sequence of tokens produced by the Scanner into a
+// sequence of parsing events.
+//
+// The Scanner is rather clever and complicated. The Parser, on the contrary,
+// is a straightforward implementation of a recursive-descendant parser (or,
+// LL(1) parser, as it is usually called).
+//
+// Actually there are two issues of Scanning that might be called "clever", the
+// rest is quite straightforward.  The issues are "block collection start" and
+// "simple keys".  Both issues are explained below in details.
+//
+// Here the Scanning step is explained and implemented.  We start with the list
+// of all the tokens produced by the Scanner together with short descriptions.
+//
+// Now, tokens:
+//
+//      STREAM-START(encoding)          # The stream start.
+//      STREAM-END                      # The stream end.
+//      VERSION-DIRECTIVE(major,minor)  # The '%YAML' directive.
+//      TAG-DIRECTIVE(handle,prefix)    # The '%TAG' directive.
+//      DOCUMENT-START                  # '---'
+//      DOCUMENT-END                    # '...'
+//      BLOCK-SEQUENCE-START            # Indentation increase denoting a block
+//      BLOCK-MAPPING-START             # sequence or a block mapping.
+//      BLOCK-END                       # Indentation decrease.
+//      FLOW-SEQUENCE-START             # '['
+//      FLOW-SEQUENCE-END               # ']'
+//      BLOCK-SEQUENCE-START            # '{'
+//      BLOCK-SEQUENCE-END              # '}'
+//      BLOCK-ENTRY                     # '-'
+//      FLOW-ENTRY                      # ','
+//      KEY                             # '?' or nothing (simple keys).
+//      VALUE                           # ':'
+//      ALIAS(anchor)                   # '*anchor'
+//      ANCHOR(anchor)                  # '&anchor'
+//      TAG(handle,suffix)              # '!handle!suffix'
+//      SCALAR(value,style)             # A scalar.
+//
+// The following two tokens are "virtual" tokens denoting the beginning and the
+// end of the stream:
+//
+//      STREAM-START(encoding)
+//      STREAM-END
+//
+// We pass the information about the input stream encoding with the
+// STREAM-START token.
+//
+// The next two tokens are responsible for tags:
+//
+//      VERSION-DIRECTIVE(major,minor)
+//      TAG-DIRECTIVE(handle,prefix)
+//
+// Example:
+//
+//      %YAML   1.1
+//      %TAG    !   !foo
+//      %TAG    !yaml!  tag:yaml.org,2002:
+//      ---
+//
+// The correspoding sequence of tokens:
+//
+//      STREAM-START(utf-8)
+//      VERSION-DIRECTIVE(1,1)
+//      TAG-DIRECTIVE("!","!foo")
+//      TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:")
+//      DOCUMENT-START
+//      STREAM-END
+//
+// Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole
+// line.
+//
+// The document start and end indicators are represented by:
+//
+//      DOCUMENT-START
+//      DOCUMENT-END
+//
+// Note that if a YAML stream contains an implicit document (without '---'
+// and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be
+// produced.
+//
+// In the following examples, we present whole documents together with the
+// produced tokens.
+//
+//      1. An implicit document:
+//
+//          'a scalar'
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          SCALAR("a scalar",single-quoted)
+//          STREAM-END
+//
+//      2. An explicit document:
+//
+//          ---
+//          'a scalar'
+//          ...
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          DOCUMENT-START
+//          SCALAR("a scalar",single-quoted)
+//          DOCUMENT-END
+//          STREAM-END
+//
+//      3. Several documents in a stream:
+//
+//          'a scalar'
+//          ---
+//          'another scalar'
+//          ---
+//          'yet another scalar'
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          SCALAR("a scalar",single-quoted)
+//          DOCUMENT-START
+//          SCALAR("another scalar",single-quoted)
+//          DOCUMENT-START
+//          SCALAR("yet another scalar",single-quoted)
+//          STREAM-END
+//
+// We have already introduced the SCALAR token above.  The following tokens are
+// used to describe aliases, anchors, tag, and scalars:
+//
+//      ALIAS(anchor)
+//      ANCHOR(anchor)
+//      TAG(handle,suffix)
+//      SCALAR(value,style)
+//
+// The following series of examples illustrate the usage of these tokens:
+//
+//      1. A recursive sequence:
+//
+//          &A [ *A ]
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          ANCHOR("A")
+//          FLOW-SEQUENCE-START
+//          ALIAS("A")
+//          FLOW-SEQUENCE-END
+//          STREAM-END
+//
+//      2. A tagged scalar:
+//
+//          !!float "3.14"  # A good approximation.
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          TAG("!!","float")
+//          SCALAR("3.14",double-quoted)
+//          STREAM-END
+//
+//      3. Various scalar styles:
+//
+//          --- # Implicit empty plain scalars do not produce tokens.
+//          --- a plain scalar
+//          --- 'a single-quoted scalar'
+//          --- "a double-quoted scalar"
+//          --- |-
+//            a literal scalar
+//          --- >-
+//            a folded
+//            scalar
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          DOCUMENT-START
+//          DOCUMENT-START
+//          SCALAR("a plain scalar",plain)
+//          DOCUMENT-START
+//          SCALAR("a single-quoted scalar",single-quoted)
+//          DOCUMENT-START
+//          SCALAR("a double-quoted scalar",double-quoted)
+//          DOCUMENT-START
+//          SCALAR("a literal scalar",literal)
+//          DOCUMENT-START
+//          SCALAR("a folded scalar",folded)
+//          STREAM-END
+//
+// Now it's time to review collection-related tokens. We will start with
+// flow collections:
+//
+//      FLOW-SEQUENCE-START
+//      FLOW-SEQUENCE-END
+//      FLOW-MAPPING-START
+//      FLOW-MAPPING-END
+//      FLOW-ENTRY
+//      KEY
+//      VALUE
+//
+// The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and
+// FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}'
+// correspondingly.  FLOW-ENTRY represent the ',' indicator.  Finally the
+// indicators '?' and ':', which are used for denoting mapping keys and values,
+// are represented by the KEY and VALUE tokens.
+//
+// The following examples show flow collections:
+//
+//      1. A flow sequence:
+//
+//          [item 1, item 2, item 3]
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          FLOW-SEQUENCE-START
+//          SCALAR("item 1",plain)
+//          FLOW-ENTRY
+//          SCALAR("item 2",plain)
+//          FLOW-ENTRY
+//          SCALAR("item 3",plain)
+//          FLOW-SEQUENCE-END
+//          STREAM-END
+//
+//      2. A flow mapping:
+//
+//          {
+//              a simple key: a value,  # Note that the KEY token is produced.
+//              ? a complex key: another value,
+//          }
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          FLOW-MAPPING-START
+//          KEY
+//          SCALAR("a simple key",plain)
+//          VALUE
+//          SCALAR("a value",plain)
+//          FLOW-ENTRY
+//          KEY
+//          SCALAR("a complex key",plain)
+//          VALUE
+//          SCALAR("another value",plain)
+//          FLOW-ENTRY
+//          FLOW-MAPPING-END
+//          STREAM-END
+//
+// A simple key is a key which is not denoted by the '?' indicator.  Note that
+// the Scanner still produce the KEY token whenever it encounters a simple key.
+//
+// For scanning block collections, the following tokens are used (note that we
+// repeat KEY and VALUE here):
+//
+//      BLOCK-SEQUENCE-START
+//      BLOCK-MAPPING-START
+//      BLOCK-END
+//      BLOCK-ENTRY
+//      KEY
+//      VALUE
+//
+// The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation
+// increase that precedes a block collection (cf. the INDENT token in Python).
+// The token BLOCK-END denote indentation decrease that ends a block collection
+// (cf. the DEDENT token in Python).  However YAML has some syntax pecularities
+// that makes detections of these tokens more complex.
+//
+// The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators
+// '-', '?', and ':' correspondingly.
+//
+// The following examples show how the tokens BLOCK-SEQUENCE-START,
+// BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner:
+//
+//      1. Block sequences:
+//
+//          - item 1
+//          - item 2
+//          -
+//            - item 3.1
+//            - item 3.2
+//          -
+//            key 1: value 1
+//            key 2: value 2
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 2",plain)
+//          BLOCK-ENTRY
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 3.1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 3.2",plain)
+//          BLOCK-END
+//          BLOCK-ENTRY
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("key 1",plain)
+//          VALUE
+//          SCALAR("value 1",plain)
+//          KEY
+//          SCALAR("key 2",plain)
+//          VALUE
+//          SCALAR("value 2",plain)
+//          BLOCK-END
+//          BLOCK-END
+//          STREAM-END
+//
+//      2. Block mappings:
+//
+//          a simple key: a value   # The KEY token is produced here.
+//          ? a complex key
+//          : another value
+//          a mapping:
+//            key 1: value 1
+//            key 2: value 2
+//          a sequence:
+//            - item 1
+//            - item 2
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("a simple key",plain)
+//          VALUE
+//          SCALAR("a value",plain)
+//          KEY
+//          SCALAR("a complex key",plain)
+//          VALUE
+//          SCALAR("another value",plain)
+//          KEY
+//          SCALAR("a mapping",plain)
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("key 1",plain)
+//          VALUE
+//          SCALAR("value 1",plain)
+//          KEY
+//          SCALAR("key 2",plain)
+//          VALUE
+//          SCALAR("value 2",plain)
+//          BLOCK-END
+//          KEY
+//          SCALAR("a sequence",plain)
+//          VALUE
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 2",plain)
+//          BLOCK-END
+//          BLOCK-END
+//          STREAM-END
+//
+// YAML does not always require to start a new block collection from a new
+// line.  If the current line contains only '-', '?', and ':' indicators, a new
+// block collection may start at the current line.  The following examples
+// illustrate this case:
+//
+//      1. Collections in a sequence:
+//
+//          - - item 1
+//            - item 2
+//          - key 1: value 1
+//            key 2: value 2
+//          - ? complex key
+//            : complex value
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 2",plain)
+//          BLOCK-END
+//          BLOCK-ENTRY
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("key 1",plain)
+//          VALUE
+//          SCALAR("value 1",plain)
+//          KEY
+//          SCALAR("key 2",plain)
+//          VALUE
+//          SCALAR("value 2",plain)
+//          BLOCK-END
+//          BLOCK-ENTRY
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("complex key")
+//          VALUE
+//          SCALAR("complex value")
+//          BLOCK-END
+//          BLOCK-END
+//          STREAM-END
+//
+//      2. Collections in a mapping:
+//
+//          ? a sequence
+//          : - item 1
+//            - item 2
+//          ? a mapping
+//          : key 1: value 1
+//            key 2: value 2
+//
+//      Tokens:
+//
+//          STREAM-START(utf-8)
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("a sequence",plain)
+//          VALUE
+//          BLOCK-SEQUENCE-START
+//          BLOCK-ENTRY
+//          SCALAR("item 1",plain)
+//          BLOCK-ENTRY
+//          SCALAR("item 2",plain)
+//          BLOCK-END
+//          KEY
+//          SCALAR("a mapping",plain)
+//          VALUE
+//          BLOCK-MAPPING-START
+//          KEY
+//          SCALAR("key 1",plain)
+//          VALUE
+//          SCALAR("value 1",plain)
+//          KEY
+//          SCALAR("key 2",plain)
+//          VALUE
+//          SCALAR("value 2",plain)
+//          BLOCK-END
+//          BLOCK-END
+//          STREAM-END
+//
+// YAML also permits non-indented sequences if they are included into a block
+// mapping.  In this case, the token BLOCK-SEQUENCE-START is not produced:
+//
+//      key:
+//      - item 1    # BLOCK-SEQUENCE-START is NOT produced here.
+//      - item 2
+//
+// Tokens:
+//
+//      STREAM-START(utf-8)
+//      BLOCK-MAPPING-START
+//      KEY
+//      SCALAR("key",plain)
+//      VALUE
+//      BLOCK-ENTRY
+//      SCALAR("item 1",plain)
+//      BLOCK-ENTRY
+//      SCALAR("item 2",plain)
+//      BLOCK-END
+//
+
+// Ensure that the buffer contains the required number of characters.
+// Return true on success, false on failure (reader error or memory error).
+func cache(parser *yaml_parser_t, length int) bool {
+	// [Go] This was inlined: !cache(A, B) -> unread < B && !update(A, B)
+	return parser.unread >= length || yaml_parser_update_buffer(parser, length)
+}
+
+// Advance the buffer pointer.
+func skip(parser *yaml_parser_t) {
+	parser.mark.index++
+	parser.mark.column++
+	parser.unread--
+	parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
+}
+
+func skip_line(parser *yaml_parser_t) {
+	if is_crlf(parser.buffer, parser.buffer_pos) {
+		parser.mark.index += 2
+		parser.mark.column = 0
+		parser.mark.line++
+		parser.unread -= 2
+		parser.buffer_pos += 2
+	} else if is_break(parser.buffer, parser.buffer_pos) {
+		parser.mark.index++
+		parser.mark.column = 0
+		parser.mark.line++
+		parser.unread--
+		parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
+	}
+}
+
+// Copy a character to a string buffer and advance pointers.
+func read(parser *yaml_parser_t, s []byte) []byte {
+	w := width(parser.buffer[parser.buffer_pos])
+	if w == 0 {
+		panic("invalid character sequence")
+	}
+	if len(s) == 0 {
+		s = make([]byte, 0, 32)
+	}
+	if w == 1 && len(s)+w <= cap(s) {
+		s = s[:len(s)+1]
+		s[len(s)-1] = parser.buffer[parser.buffer_pos]
+		parser.buffer_pos++
+	} else {
+		s = append(s, parser.buffer[parser.buffer_pos:parser.buffer_pos+w]...)
+		parser.buffer_pos += w
+	}
+	parser.mark.index++
+	parser.mark.column++
+	parser.unread--
+	return s
+}
+
+// Copy a line break character to a string buffer and advance pointers.
+func read_line(parser *yaml_parser_t, s []byte) []byte {
+	buf := parser.buffer
+	pos := parser.buffer_pos
+	switch {
+	case buf[pos] == '\r' && buf[pos+1] == '\n':
+		// CR LF . LF
+		s = append(s, '\n')
+		parser.buffer_pos += 2
+		parser.mark.index++
+		parser.unread--
+	case buf[pos] == '\r' || buf[pos] == '\n':
+		// CR|LF . LF
+		s = append(s, '\n')
+		parser.buffer_pos += 1
+	case buf[pos] == '\xC2' && buf[pos+1] == '\x85':
+		// NEL . LF
+		s = append(s, '\n')
+		parser.buffer_pos += 2
+	case buf[pos] == '\xE2' && buf[pos+1] == '\x80' && (buf[pos+2] == '\xA8' || buf[pos+2] == '\xA9'):
+		// LS|PS . LS|PS
+		s = append(s, buf[parser.buffer_pos:pos+3]...)
+		parser.buffer_pos += 3
+	default:
+		return s
+	}
+	parser.mark.index++
+	parser.mark.column = 0
+	parser.mark.line++
+	parser.unread--
+	return s
+}
+
+// Get the next token.
+func yaml_parser_scan(parser *yaml_parser_t, token *yaml_token_t) bool {
+	// Erase the token object.
+	*token = yaml_token_t{} // [Go] Is this necessary?
+
+	// No tokens after STREAM-END or error.
+	if parser.stream_end_produced || parser.error != yaml_NO_ERROR {
+		return true
+	}
+
+	// Ensure that the tokens queue contains enough tokens.
+	if !parser.token_available {
+		if !yaml_parser_fetch_more_tokens(parser) {
+			return false
+		}
+	}
+
+	// Fetch the next token from the queue.
+	*token = parser.tokens[parser.tokens_head]
+	parser.tokens_head++
+	parser.tokens_parsed++
+	parser.token_available = false
+
+	if token.typ == yaml_STREAM_END_TOKEN {
+		parser.stream_end_produced = true
+	}
+	return true
+}
+
+// Set the scanner error and return false.
+func yaml_parser_set_scanner_error(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string) bool {
+	parser.error = yaml_SCANNER_ERROR
+	parser.context = context
+	parser.context_mark = context_mark
+	parser.problem = problem
+	parser.problem_mark = parser.mark
+	return false
+}
+
+func yaml_parser_set_scanner_tag_error(parser *yaml_parser_t, directive bool, context_mark yaml_mark_t, problem string) bool {
+	context := "while parsing a tag"
+	if directive {
+		context = "while parsing a %TAG directive"
+	}
+	return yaml_parser_set_scanner_error(parser, context, context_mark, problem)
+}
+
+func trace(args ...interface{}) func() {
+	pargs := append([]interface{}{"+++"}, args...)
+	fmt.Println(pargs...)
+	pargs = append([]interface{}{"---"}, args...)
+	return func() { fmt.Println(pargs...) }
+}
+
+// Ensure that the tokens queue contains at least one token which can be
+// returned to the Parser.
+func yaml_parser_fetch_more_tokens(parser *yaml_parser_t) bool {
+	// While we need more tokens to fetch, do it.
+	for {
+		// Check if we really need to fetch more tokens.
+		need_more_tokens := false
+
+		if parser.tokens_head == len(parser.tokens) {
+			// Queue is empty.
+			need_more_tokens = true
+		} else {
+			// Check if any potential simple key may occupy the head position.
+			if !yaml_parser_stale_simple_keys(parser) {
+				return false
+			}
+
+			for i := range parser.simple_keys {
+				simple_key := &parser.simple_keys[i]
+				if simple_key.possible && simple_key.token_number == parser.tokens_parsed {
+					need_more_tokens = true
+					break
+				}
+			}
+		}
+
+		// We are finished.
+		if !need_more_tokens {
+			break
+		}
+		// Fetch the next token.
+		if !yaml_parser_fetch_next_token(parser) {
+			return false
+		}
+	}
+
+	parser.token_available = true
+	return true
+}
+
+// The dispatcher for token fetchers.
+func yaml_parser_fetch_next_token(parser *yaml_parser_t) bool {
+	// Ensure that the buffer is initialized.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	// Check if we just started scanning.  Fetch STREAM-START then.
+	if !parser.stream_start_produced {
+		return yaml_parser_fetch_stream_start(parser)
+	}
+
+	// Eat whitespaces and comments until we reach the next token.
+	if !yaml_parser_scan_to_next_token(parser) {
+		return false
+	}
+
+	// Remove obsolete potential simple keys.
+	if !yaml_parser_stale_simple_keys(parser) {
+		return false
+	}
+
+	// Check the indentation level against the current column.
+	if !yaml_parser_unroll_indent(parser, parser.mark.column) {
+		return false
+	}
+
+	// Ensure that the buffer contains at least 4 characters.  4 is the length
+	// of the longest indicators ('--- ' and '... ').
+	if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+		return false
+	}
+
+	// Is it the end of the stream?
+	if is_z(parser.buffer, parser.buffer_pos) {
+		return yaml_parser_fetch_stream_end(parser)
+	}
+
+	// Is it a directive?
+	if parser.mark.column == 0 && parser.buffer[parser.buffer_pos] == '%' {
+		return yaml_parser_fetch_directive(parser)
+	}
+
+	buf := parser.buffer
+	pos := parser.buffer_pos
+
+	// Is it the document start indicator?
+	if parser.mark.column == 0 && buf[pos] == '-' && buf[pos+1] == '-' && buf[pos+2] == '-' && is_blankz(buf, pos+3) {
+		return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_START_TOKEN)
+	}
+
+	// Is it the document end indicator?
+	if parser.mark.column == 0 && buf[pos] == '.' && buf[pos+1] == '.' && buf[pos+2] == '.' && is_blankz(buf, pos+3) {
+		return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_END_TOKEN)
+	}
+
+	// Is it the flow sequence start indicator?
+	if buf[pos] == '[' {
+		return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_SEQUENCE_START_TOKEN)
+	}
+
+	// Is it the flow mapping start indicator?
+	if parser.buffer[parser.buffer_pos] == '{' {
+		return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_MAPPING_START_TOKEN)
+	}
+
+	// Is it the flow sequence end indicator?
+	if parser.buffer[parser.buffer_pos] == ']' {
+		return yaml_parser_fetch_flow_collection_end(parser,
+			yaml_FLOW_SEQUENCE_END_TOKEN)
+	}
+
+	// Is it the flow mapping end indicator?
+	if parser.buffer[parser.buffer_pos] == '}' {
+		return yaml_parser_fetch_flow_collection_end(parser,
+			yaml_FLOW_MAPPING_END_TOKEN)
+	}
+
+	// Is it the flow entry indicator?
+	if parser.buffer[parser.buffer_pos] == ',' {
+		return yaml_parser_fetch_flow_entry(parser)
+	}
+
+	// Is it the block entry indicator?
+	if parser.buffer[parser.buffer_pos] == '-' && is_blankz(parser.buffer, parser.buffer_pos+1) {
+		return yaml_parser_fetch_block_entry(parser)
+	}
+
+	// Is it the key indicator?
+	if parser.buffer[parser.buffer_pos] == '?' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
+		return yaml_parser_fetch_key(parser)
+	}
+
+	// Is it the value indicator?
+	if parser.buffer[parser.buffer_pos] == ':' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
+		return yaml_parser_fetch_value(parser)
+	}
+
+	// Is it an alias?
+	if parser.buffer[parser.buffer_pos] == '*' {
+		return yaml_parser_fetch_anchor(parser, yaml_ALIAS_TOKEN)
+	}
+
+	// Is it an anchor?
+	if parser.buffer[parser.buffer_pos] == '&' {
+		return yaml_parser_fetch_anchor(parser, yaml_ANCHOR_TOKEN)
+	}
+
+	// Is it a tag?
+	if parser.buffer[parser.buffer_pos] == '!' {
+		return yaml_parser_fetch_tag(parser)
+	}
+
+	// Is it a literal scalar?
+	if parser.buffer[parser.buffer_pos] == '|' && parser.flow_level == 0 {
+		return yaml_parser_fetch_block_scalar(parser, true)
+	}
+
+	// Is it a folded scalar?
+	if parser.buffer[parser.buffer_pos] == '>' && parser.flow_level == 0 {
+		return yaml_parser_fetch_block_scalar(parser, false)
+	}
+
+	// Is it a single-quoted scalar?
+	if parser.buffer[parser.buffer_pos] == '\'' {
+		return yaml_parser_fetch_flow_scalar(parser, true)
+	}
+
+	// Is it a double-quoted scalar?
+	if parser.buffer[parser.buffer_pos] == '"' {
+		return yaml_parser_fetch_flow_scalar(parser, false)
+	}
+
+	// Is it a plain scalar?
+	//
+	// A plain scalar may start with any non-blank characters except
+	//
+	//      '-', '?', ':', ',', '[', ']', '{', '}',
+	//      '#', '&', '*', '!', '|', '>', '\'', '\"',
+	//      '%', '@', '`'.
+	//
+	// In the block context (and, for the '-' indicator, in the flow context
+	// too), it may also start with the characters
+	//
+	//      '-', '?', ':'
+	//
+	// if it is followed by a non-space character.
+	//
+	// The last rule is more restrictive than the specification requires.
+	// [Go] Make this logic more reasonable.
+	//switch parser.buffer[parser.buffer_pos] {
+	//case '-', '?', ':', ',', '?', '-', ',', ':', ']', '[', '}', '{', '&', '#', '!', '*', '>', '|', '"', '\'', '@', '%', '-', '`':
+	//}
+	if !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '-' ||
+		parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':' ||
+		parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '[' ||
+		parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
+		parser.buffer[parser.buffer_pos] == '}' || parser.buffer[parser.buffer_pos] == '#' ||
+		parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '*' ||
+		parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '|' ||
+		parser.buffer[parser.buffer_pos] == '>' || parser.buffer[parser.buffer_pos] == '\'' ||
+		parser.buffer[parser.buffer_pos] == '"' || parser.buffer[parser.buffer_pos] == '%' ||
+		parser.buffer[parser.buffer_pos] == '@' || parser.buffer[parser.buffer_pos] == '`') ||
+		(parser.buffer[parser.buffer_pos] == '-' && !is_blank(parser.buffer, parser.buffer_pos+1)) ||
+		(parser.flow_level == 0 &&
+			(parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':') &&
+			!is_blankz(parser.buffer, parser.buffer_pos+1)) {
+		return yaml_parser_fetch_plain_scalar(parser)
+	}
+
+	// If we don't determine the token type so far, it is an error.
+	return yaml_parser_set_scanner_error(parser,
+		"while scanning for the next token", parser.mark,
+		"found character that cannot start any token")
+}
+
+// Check the list of potential simple keys and remove the positions that
+// cannot contain simple keys anymore.
+func yaml_parser_stale_simple_keys(parser *yaml_parser_t) bool {
+	// Check for a potential simple key for each flow level.
+	for i := range parser.simple_keys {
+		simple_key := &parser.simple_keys[i]
+
+		// The specification requires that a simple key
+		//
+		//  - is limited to a single line,
+		//  - is shorter than 1024 characters.
+		if simple_key.possible && (simple_key.mark.line < parser.mark.line || simple_key.mark.index+1024 < parser.mark.index) {
+
+			// Check if the potential simple key to be removed is required.
+			if simple_key.required {
+				return yaml_parser_set_scanner_error(parser,
+					"while scanning a simple key", simple_key.mark,
+					"could not find expected ':'")
+			}
+			simple_key.possible = false
+		}
+	}
+	return true
+}
+
+// Check if a simple key may start at the current position and add it if
+// needed.
+func yaml_parser_save_simple_key(parser *yaml_parser_t) bool {
+	// A simple key is required at the current position if the scanner is in
+	// the block context and the current column coincides with the indentation
+	// level.
+
+	required := parser.flow_level == 0 && parser.indent == parser.mark.column
+
+	// A simple key is required only when it is the first token in the current
+	// line.  Therefore it is always allowed.  But we add a check anyway.
+	if required && !parser.simple_key_allowed {
+		panic("should not happen")
+	}
+
+	//
+	// If the current position may start a simple key, save it.
+	//
+	if parser.simple_key_allowed {
+		simple_key := yaml_simple_key_t{
+			possible:     true,
+			required:     required,
+			token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head),
+		}
+		simple_key.mark = parser.mark
+
+		if !yaml_parser_remove_simple_key(parser) {
+			return false
+		}
+		parser.simple_keys[len(parser.simple_keys)-1] = simple_key
+	}
+	return true
+}
+
+// Remove a potential simple key at the current flow level.
+func yaml_parser_remove_simple_key(parser *yaml_parser_t) bool {
+	i := len(parser.simple_keys) - 1
+	if parser.simple_keys[i].possible {
+		// If the key is required, it is an error.
+		if parser.simple_keys[i].required {
+			return yaml_parser_set_scanner_error(parser,
+				"while scanning a simple key", parser.simple_keys[i].mark,
+				"could not find expected ':'")
+		}
+	}
+	// Remove the key from the stack.
+	parser.simple_keys[i].possible = false
+	return true
+}
+
+// Increase the flow level and resize the simple key list if needed.
+func yaml_parser_increase_flow_level(parser *yaml_parser_t) bool {
+	// Reset the simple key on the next level.
+	parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
+
+	// Increase the flow level.
+	parser.flow_level++
+	return true
+}
+
+// Decrease the flow level.
+func yaml_parser_decrease_flow_level(parser *yaml_parser_t) bool {
+	if parser.flow_level > 0 {
+		parser.flow_level--
+		parser.simple_keys = parser.simple_keys[:len(parser.simple_keys)-1]
+	}
+	return true
+}
+
+// Push the current indentation level to the stack and set the new level
+// the current column is greater than the indentation level.  In this case,
+// append or insert the specified token into the token queue.
+func yaml_parser_roll_indent(parser *yaml_parser_t, column, number int, typ yaml_token_type_t, mark yaml_mark_t) bool {
+	// In the flow context, do nothing.
+	if parser.flow_level > 0 {
+		return true
+	}
+
+	if parser.indent < column {
+		// Push the current indentation level to the stack and set the new
+		// indentation level.
+		parser.indents = append(parser.indents, parser.indent)
+		parser.indent = column
+
+		// Create a token and insert it into the queue.
+		token := yaml_token_t{
+			typ:        typ,
+			start_mark: mark,
+			end_mark:   mark,
+		}
+		if number > -1 {
+			number -= parser.tokens_parsed
+		}
+		yaml_insert_token(parser, number, &token)
+	}
+	return true
+}
+
+// Pop indentation levels from the indents stack until the current level
+// becomes less or equal to the column.  For each indentation level, append
+// the BLOCK-END token.
+func yaml_parser_unroll_indent(parser *yaml_parser_t, column int) bool {
+	// In the flow context, do nothing.
+	if parser.flow_level > 0 {
+		return true
+	}
+
+	// Loop through the indentation levels in the stack.
+	for parser.indent > column {
+		// Create a token and append it to the queue.
+		token := yaml_token_t{
+			typ:        yaml_BLOCK_END_TOKEN,
+			start_mark: parser.mark,
+			end_mark:   parser.mark,
+		}
+		yaml_insert_token(parser, -1, &token)
+
+		// Pop the indentation level.
+		parser.indent = parser.indents[len(parser.indents)-1]
+		parser.indents = parser.indents[:len(parser.indents)-1]
+	}
+	return true
+}
+
+// Initialize the scanner and produce the STREAM-START token.
+func yaml_parser_fetch_stream_start(parser *yaml_parser_t) bool {
+
+	// Set the initial indentation.
+	parser.indent = -1
+
+	// Initialize the simple key stack.
+	parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
+
+	// A simple key is allowed at the beginning of the stream.
+	parser.simple_key_allowed = true
+
+	// We have started.
+	parser.stream_start_produced = true
+
+	// Create the STREAM-START token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_STREAM_START_TOKEN,
+		start_mark: parser.mark,
+		end_mark:   parser.mark,
+		encoding:   parser.encoding,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the STREAM-END token and shut down the scanner.
+func yaml_parser_fetch_stream_end(parser *yaml_parser_t) bool {
+
+	// Force new line.
+	if parser.mark.column != 0 {
+		parser.mark.column = 0
+		parser.mark.line++
+	}
+
+	// Reset the indentation level.
+	if !yaml_parser_unroll_indent(parser, -1) {
+		return false
+	}
+
+	// Reset simple keys.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	parser.simple_key_allowed = false
+
+	// Create the STREAM-END token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_STREAM_END_TOKEN,
+		start_mark: parser.mark,
+		end_mark:   parser.mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token.
+func yaml_parser_fetch_directive(parser *yaml_parser_t) bool {
+	// Reset the indentation level.
+	if !yaml_parser_unroll_indent(parser, -1) {
+		return false
+	}
+
+	// Reset simple keys.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	parser.simple_key_allowed = false
+
+	// Create the YAML-DIRECTIVE or TAG-DIRECTIVE token.
+	token := yaml_token_t{}
+	if !yaml_parser_scan_directive(parser, &token) {
+		return false
+	}
+	// Append the token to the queue.
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the DOCUMENT-START or DOCUMENT-END token.
+func yaml_parser_fetch_document_indicator(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+	// Reset the indentation level.
+	if !yaml_parser_unroll_indent(parser, -1) {
+		return false
+	}
+
+	// Reset simple keys.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	parser.simple_key_allowed = false
+
+	// Consume the token.
+	start_mark := parser.mark
+
+	skip(parser)
+	skip(parser)
+	skip(parser)
+
+	end_mark := parser.mark
+
+	// Create the DOCUMENT-START or DOCUMENT-END token.
+	token := yaml_token_t{
+		typ:        typ,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	// Append the token to the queue.
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token.
+func yaml_parser_fetch_flow_collection_start(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+	// The indicators '[' and '{' may start a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// Increase the flow level.
+	if !yaml_parser_increase_flow_level(parser) {
+		return false
+	}
+
+	// A simple key may follow the indicators '[' and '{'.
+	parser.simple_key_allowed = true
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token.
+	token := yaml_token_t{
+		typ:        typ,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	// Append the token to the queue.
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token.
+func yaml_parser_fetch_flow_collection_end(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+	// Reset any potential simple key on the current flow level.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// Decrease the flow level.
+	if !yaml_parser_decrease_flow_level(parser) {
+		return false
+	}
+
+	// No simple keys after the indicators ']' and '}'.
+	parser.simple_key_allowed = false
+
+	// Consume the token.
+
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token.
+	token := yaml_token_t{
+		typ:        typ,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	// Append the token to the queue.
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the FLOW-ENTRY token.
+func yaml_parser_fetch_flow_entry(parser *yaml_parser_t) bool {
+	// Reset any potential simple keys on the current flow level.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// Simple keys are allowed after ','.
+	parser.simple_key_allowed = true
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the FLOW-ENTRY token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_FLOW_ENTRY_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the BLOCK-ENTRY token.
+func yaml_parser_fetch_block_entry(parser *yaml_parser_t) bool {
+	// Check if the scanner is in the block context.
+	if parser.flow_level == 0 {
+		// Check if we are allowed to start a new entry.
+		if !parser.simple_key_allowed {
+			return yaml_parser_set_scanner_error(parser, "", parser.mark,
+				"block sequence entries are not allowed in this context")
+		}
+		// Add the BLOCK-SEQUENCE-START token if needed.
+		if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_SEQUENCE_START_TOKEN, parser.mark) {
+			return false
+		}
+	} else {
+		// It is an error for the '-' indicator to occur in the flow context,
+		// but we let the Parser detect and report about it because the Parser
+		// is able to point to the context.
+	}
+
+	// Reset any potential simple keys on the current flow level.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// Simple keys are allowed after '-'.
+	parser.simple_key_allowed = true
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the BLOCK-ENTRY token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_BLOCK_ENTRY_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the KEY token.
+func yaml_parser_fetch_key(parser *yaml_parser_t) bool {
+
+	// In the block context, additional checks are required.
+	if parser.flow_level == 0 {
+		// Check if we are allowed to start a new key (not nessesary simple).
+		if !parser.simple_key_allowed {
+			return yaml_parser_set_scanner_error(parser, "", parser.mark,
+				"mapping keys are not allowed in this context")
+		}
+		// Add the BLOCK-MAPPING-START token if needed.
+		if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
+			return false
+		}
+	}
+
+	// Reset any potential simple keys on the current flow level.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// Simple keys are allowed after '?' in the block context.
+	parser.simple_key_allowed = parser.flow_level == 0
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the KEY token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_KEY_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the VALUE token.
+func yaml_parser_fetch_value(parser *yaml_parser_t) bool {
+
+	simple_key := &parser.simple_keys[len(parser.simple_keys)-1]
+
+	// Have we found a simple key?
+	if simple_key.possible {
+		// Create the KEY token and insert it into the queue.
+		token := yaml_token_t{
+			typ:        yaml_KEY_TOKEN,
+			start_mark: simple_key.mark,
+			end_mark:   simple_key.mark,
+		}
+		yaml_insert_token(parser, simple_key.token_number-parser.tokens_parsed, &token)
+
+		// In the block context, we may need to add the BLOCK-MAPPING-START token.
+		if !yaml_parser_roll_indent(parser, simple_key.mark.column,
+			simple_key.token_number,
+			yaml_BLOCK_MAPPING_START_TOKEN, simple_key.mark) {
+			return false
+		}
+
+		// Remove the simple key.
+		simple_key.possible = false
+
+		// A simple key cannot follow another simple key.
+		parser.simple_key_allowed = false
+
+	} else {
+		// The ':' indicator follows a complex key.
+
+		// In the block context, extra checks are required.
+		if parser.flow_level == 0 {
+
+			// Check if we are allowed to start a complex value.
+			if !parser.simple_key_allowed {
+				return yaml_parser_set_scanner_error(parser, "", parser.mark,
+					"mapping values are not allowed in this context")
+			}
+
+			// Add the BLOCK-MAPPING-START token if needed.
+			if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
+				return false
+			}
+		}
+
+		// Simple keys after ':' are allowed in the block context.
+		parser.simple_key_allowed = parser.flow_level == 0
+	}
+
+	// Consume the token.
+	start_mark := parser.mark
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create the VALUE token and append it to the queue.
+	token := yaml_token_t{
+		typ:        yaml_VALUE_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the ALIAS or ANCHOR token.
+func yaml_parser_fetch_anchor(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+	// An anchor or an alias could be a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// A simple key cannot follow an anchor or an alias.
+	parser.simple_key_allowed = false
+
+	// Create the ALIAS or ANCHOR token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_anchor(parser, &token, typ) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the TAG token.
+func yaml_parser_fetch_tag(parser *yaml_parser_t) bool {
+	// A tag could be a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// A simple key cannot follow a tag.
+	parser.simple_key_allowed = false
+
+	// Create the TAG token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_tag(parser, &token) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens.
+func yaml_parser_fetch_block_scalar(parser *yaml_parser_t, literal bool) bool {
+	// Remove any potential simple keys.
+	if !yaml_parser_remove_simple_key(parser) {
+		return false
+	}
+
+	// A simple key may follow a block scalar.
+	parser.simple_key_allowed = true
+
+	// Create the SCALAR token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_block_scalar(parser, &token, literal) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens.
+func yaml_parser_fetch_flow_scalar(parser *yaml_parser_t, single bool) bool {
+	// A plain scalar could be a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// A simple key cannot follow a flow scalar.
+	parser.simple_key_allowed = false
+
+	// Create the SCALAR token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_flow_scalar(parser, &token, single) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Produce the SCALAR(...,plain) token.
+func yaml_parser_fetch_plain_scalar(parser *yaml_parser_t) bool {
+	// A plain scalar could be a simple key.
+	if !yaml_parser_save_simple_key(parser) {
+		return false
+	}
+
+	// A simple key cannot follow a flow scalar.
+	parser.simple_key_allowed = false
+
+	// Create the SCALAR token and append it to the queue.
+	var token yaml_token_t
+	if !yaml_parser_scan_plain_scalar(parser, &token) {
+		return false
+	}
+	yaml_insert_token(parser, -1, &token)
+	return true
+}
+
+// Eat whitespaces and comments until the next token is found.
+func yaml_parser_scan_to_next_token(parser *yaml_parser_t) bool {
+
+	// Until the next token is not found.
+	for {
+		// Allow the BOM mark to start a line.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		if parser.mark.column == 0 && is_bom(parser.buffer, parser.buffer_pos) {
+			skip(parser)
+		}
+
+		// Eat whitespaces.
+		// Tabs are allowed:
+		//  - in the flow context
+		//  - in the block context, but not at the beginning of the line or
+		//  after '-', '?', or ':' (complex value).
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+
+		for parser.buffer[parser.buffer_pos] == ' ' || ((parser.flow_level > 0 || !parser.simple_key_allowed) && parser.buffer[parser.buffer_pos] == '\t') {
+			skip(parser)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+
+		// Eat a comment until a line break.
+		if parser.buffer[parser.buffer_pos] == '#' {
+			for !is_breakz(parser.buffer, parser.buffer_pos) {
+				skip(parser)
+				if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+					return false
+				}
+			}
+		}
+
+		// If it is a line break, eat it.
+		if is_break(parser.buffer, parser.buffer_pos) {
+			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+				return false
+			}
+			skip_line(parser)
+
+			// In the block context, a new line may start a simple key.
+			if parser.flow_level == 0 {
+				parser.simple_key_allowed = true
+			}
+		} else {
+			break // We have found a token.
+		}
+	}
+
+	return true
+}
+
+// Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token.
+//
+// Scope:
+//      %YAML    1.1    # a comment \n
+//      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//      %TAG    !yaml!  tag:yaml.org,2002:  \n
+//      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//
+func yaml_parser_scan_directive(parser *yaml_parser_t, token *yaml_token_t) bool {
+	// Eat '%'.
+	start_mark := parser.mark
+	skip(parser)
+
+	// Scan the directive name.
+	var name []byte
+	if !yaml_parser_scan_directive_name(parser, start_mark, &name) {
+		return false
+	}
+
+	// Is it a YAML directive?
+	if bytes.Equal(name, []byte("YAML")) {
+		// Scan the VERSION directive value.
+		var major, minor int8
+		if !yaml_parser_scan_version_directive_value(parser, start_mark, &major, &minor) {
+			return false
+		}
+		end_mark := parser.mark
+
+		// Create a VERSION-DIRECTIVE token.
+		*token = yaml_token_t{
+			typ:        yaml_VERSION_DIRECTIVE_TOKEN,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			major:      major,
+			minor:      minor,
+		}
+
+		// Is it a TAG directive?
+	} else if bytes.Equal(name, []byte("TAG")) {
+		// Scan the TAG directive value.
+		var handle, prefix []byte
+		if !yaml_parser_scan_tag_directive_value(parser, start_mark, &handle, &prefix) {
+			return false
+		}
+		end_mark := parser.mark
+
+		// Create a TAG-DIRECTIVE token.
+		*token = yaml_token_t{
+			typ:        yaml_TAG_DIRECTIVE_TOKEN,
+			start_mark: start_mark,
+			end_mark:   end_mark,
+			value:      handle,
+			prefix:     prefix,
+		}
+
+		// Unknown directive.
+	} else {
+		yaml_parser_set_scanner_error(parser, "while scanning a directive",
+			start_mark, "found unknown directive name")
+		return false
+	}
+
+	// Eat the rest of the line including any comments.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	if parser.buffer[parser.buffer_pos] == '#' {
+		for !is_breakz(parser.buffer, parser.buffer_pos) {
+			skip(parser)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+	}
+
+	// Check if we are at the end of the line.
+	if !is_breakz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a directive",
+			start_mark, "did not find expected comment or line break")
+		return false
+	}
+
+	// Eat a line break.
+	if is_break(parser.buffer, parser.buffer_pos) {
+		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+			return false
+		}
+		skip_line(parser)
+	}
+
+	return true
+}
+
+// Scan the directive name.
+//
+// Scope:
+//      %YAML   1.1     # a comment \n
+//       ^^^^
+//      %TAG    !yaml!  tag:yaml.org,2002:  \n
+//       ^^^
+//
+func yaml_parser_scan_directive_name(parser *yaml_parser_t, start_mark yaml_mark_t, name *[]byte) bool {
+	// Consume the directive name.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	var s []byte
+	for is_alpha(parser.buffer, parser.buffer_pos) {
+		s = read(parser, s)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Check if the name is empty.
+	if len(s) == 0 {
+		yaml_parser_set_scanner_error(parser, "while scanning a directive",
+			start_mark, "could not find expected directive name")
+		return false
+	}
+
+	// Check for an blank character after the name.
+	if !is_blankz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a directive",
+			start_mark, "found unexpected non-alphabetical character")
+		return false
+	}
+	*name = s
+	return true
+}
+
+// Scan the value of VERSION-DIRECTIVE.
+//
+// Scope:
+//      %YAML   1.1     # a comment \n
+//           ^^^^^^
+func yaml_parser_scan_version_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, major, minor *int8) bool {
+	// Eat whitespaces.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Consume the major version number.
+	if !yaml_parser_scan_version_directive_number(parser, start_mark, major) {
+		return false
+	}
+
+	// Eat '.'.
+	if parser.buffer[parser.buffer_pos] != '.' {
+		return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+			start_mark, "did not find expected digit or '.' character")
+	}
+
+	skip(parser)
+
+	// Consume the minor version number.
+	if !yaml_parser_scan_version_directive_number(parser, start_mark, minor) {
+		return false
+	}
+	return true
+}
+
+const max_number_length = 2
+
+// Scan the version number of VERSION-DIRECTIVE.
+//
+// Scope:
+//      %YAML   1.1     # a comment \n
+//              ^
+//      %YAML   1.1     # a comment \n
+//                ^
+func yaml_parser_scan_version_directive_number(parser *yaml_parser_t, start_mark yaml_mark_t, number *int8) bool {
+
+	// Repeat while the next character is digit.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	var value, length int8
+	for is_digit(parser.buffer, parser.buffer_pos) {
+		// Check if the number is too long.
+		length++
+		if length > max_number_length {
+			return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+				start_mark, "found extremely long version number")
+		}
+		value = value*10 + int8(as_digit(parser.buffer, parser.buffer_pos))
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Check if the number was present.
+	if length == 0 {
+		return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+			start_mark, "did not find expected version number")
+	}
+	*number = value
+	return true
+}
+
+// Scan the value of a TAG-DIRECTIVE token.
+//
+// Scope:
+//      %TAG    !yaml!  tag:yaml.org,2002:  \n
+//          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//
+func yaml_parser_scan_tag_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, handle, prefix *[]byte) bool {
+	var handle_value, prefix_value []byte
+
+	// Eat whitespaces.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Scan a handle.
+	if !yaml_parser_scan_tag_handle(parser, true, start_mark, &handle_value) {
+		return false
+	}
+
+	// Expect a whitespace.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	if !is_blank(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
+			start_mark, "did not find expected whitespace")
+		return false
+	}
+
+	// Eat whitespaces.
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Scan a prefix.
+	if !yaml_parser_scan_tag_uri(parser, true, nil, start_mark, &prefix_value) {
+		return false
+	}
+
+	// Expect a whitespace or line break.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	if !is_blankz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
+			start_mark, "did not find expected whitespace or line break")
+		return false
+	}
+
+	*handle = handle_value
+	*prefix = prefix_value
+	return true
+}
+
+func yaml_parser_scan_anchor(parser *yaml_parser_t, token *yaml_token_t, typ yaml_token_type_t) bool {
+	var s []byte
+
+	// Eat the indicator character.
+	start_mark := parser.mark
+	skip(parser)
+
+	// Consume the value.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	for is_alpha(parser.buffer, parser.buffer_pos) {
+		s = read(parser, s)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	end_mark := parser.mark
+
+	/*
+	 * Check if length of the anchor is greater than 0 and it is followed by
+	 * a whitespace character or one of the indicators:
+	 *
+	 *      '?', ':', ',', ']', '}', '%', '@', '`'.
+	 */
+
+	if len(s) == 0 ||
+		!(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '?' ||
+			parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == ',' ||
+			parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '}' ||
+			parser.buffer[parser.buffer_pos] == '%' || parser.buffer[parser.buffer_pos] == '@' ||
+			parser.buffer[parser.buffer_pos] == '`') {
+		context := "while scanning an alias"
+		if typ == yaml_ANCHOR_TOKEN {
+			context = "while scanning an anchor"
+		}
+		yaml_parser_set_scanner_error(parser, context, start_mark,
+			"did not find expected alphabetic or numeric character")
+		return false
+	}
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        typ,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      s,
+	}
+
+	return true
+}
+
+/*
+ * Scan a TAG token.
+ */
+
+func yaml_parser_scan_tag(parser *yaml_parser_t, token *yaml_token_t) bool {
+	var handle, suffix []byte
+
+	start_mark := parser.mark
+
+	// Check if the tag is in the canonical form.
+	if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+		return false
+	}
+
+	if parser.buffer[parser.buffer_pos+1] == '<' {
+		// Keep the handle as ''
+
+		// Eat '!<'
+		skip(parser)
+		skip(parser)
+
+		// Consume the tag value.
+		if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
+			return false
+		}
+
+		// Check for '>' and eat it.
+		if parser.buffer[parser.buffer_pos] != '>' {
+			yaml_parser_set_scanner_error(parser, "while scanning a tag",
+				start_mark, "did not find the expected '>'")
+			return false
+		}
+
+		skip(parser)
+	} else {
+		// The tag has either the '!suffix' or the '!handle!suffix' form.
+
+		// First, try to scan a handle.
+		if !yaml_parser_scan_tag_handle(parser, false, start_mark, &handle) {
+			return false
+		}
+
+		// Check if it is, indeed, handle.
+		if handle[0] == '!' && len(handle) > 1 && handle[len(handle)-1] == '!' {
+			// Scan the suffix now.
+			if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
+				return false
+			}
+		} else {
+			// It wasn't a handle after all.  Scan the rest of the tag.
+			if !yaml_parser_scan_tag_uri(parser, false, handle, start_mark, &suffix) {
+				return false
+			}
+
+			// Set the handle to '!'.
+			handle = []byte{'!'}
+
+			// A special case: the '!' tag.  Set the handle to '' and the
+			// suffix to '!'.
+			if len(suffix) == 0 {
+				handle, suffix = suffix, handle
+			}
+		}
+	}
+
+	// Check the character which ends the tag.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	if !is_blankz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a tag",
+			start_mark, "did not find expected whitespace or line break")
+		return false
+	}
+
+	end_mark := parser.mark
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        yaml_TAG_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      handle,
+		suffix:     suffix,
+	}
+	return true
+}
+
+// Scan a tag handle.
+func yaml_parser_scan_tag_handle(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, handle *[]byte) bool {
+	// Check the initial '!' character.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	if parser.buffer[parser.buffer_pos] != '!' {
+		yaml_parser_set_scanner_tag_error(parser, directive,
+			start_mark, "did not find expected '!'")
+		return false
+	}
+
+	var s []byte
+
+	// Copy the '!' character.
+	s = read(parser, s)
+
+	// Copy all subsequent alphabetical and numerical characters.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	for is_alpha(parser.buffer, parser.buffer_pos) {
+		s = read(parser, s)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+
+	// Check if the trailing character is '!' and copy it.
+	if parser.buffer[parser.buffer_pos] == '!' {
+		s = read(parser, s)
+	} else {
+		// It's either the '!' tag or not really a tag handle.  If it's a %TAG
+		// directive, it's an error.  If it's a tag token, it must be a part of URI.
+		if directive && string(s) != "!" {
+			yaml_parser_set_scanner_tag_error(parser, directive,
+				start_mark, "did not find expected '!'")
+			return false
+		}
+	}
+
+	*handle = s
+	return true
+}
+
+// Scan a tag.
+func yaml_parser_scan_tag_uri(parser *yaml_parser_t, directive bool, head []byte, start_mark yaml_mark_t, uri *[]byte) bool {
+	//size_t length = head ? strlen((char *)head) : 0
+	var s []byte
+	hasTag := len(head) > 0
+
+	// Copy the head if needed.
+	//
+	// Note that we don't copy the leading '!' character.
+	if len(head) > 1 {
+		s = append(s, head[1:]...)
+	}
+
+	// Scan the tag.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	// The set of characters that may appear in URI is as follows:
+	//
+	//      '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&',
+	//      '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']',
+	//      '%'.
+	// [Go] Convert this into more reasonable logic.
+	for is_alpha(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == ';' ||
+		parser.buffer[parser.buffer_pos] == '/' || parser.buffer[parser.buffer_pos] == '?' ||
+		parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == '@' ||
+		parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '=' ||
+		parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '$' ||
+		parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '.' ||
+		parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '~' ||
+		parser.buffer[parser.buffer_pos] == '*' || parser.buffer[parser.buffer_pos] == '\'' ||
+		parser.buffer[parser.buffer_pos] == '(' || parser.buffer[parser.buffer_pos] == ')' ||
+		parser.buffer[parser.buffer_pos] == '[' || parser.buffer[parser.buffer_pos] == ']' ||
+		parser.buffer[parser.buffer_pos] == '%' {
+		// Check if it is a URI-escape sequence.
+		if parser.buffer[parser.buffer_pos] == '%' {
+			if !yaml_parser_scan_uri_escapes(parser, directive, start_mark, &s) {
+				return false
+			}
+		} else {
+			s = read(parser, s)
+		}
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		hasTag = true
+	}
+
+	if !hasTag {
+		yaml_parser_set_scanner_tag_error(parser, directive,
+			start_mark, "did not find expected tag URI")
+		return false
+	}
+	*uri = s
+	return true
+}
+
+// Decode an URI-escape sequence corresponding to a single UTF-8 character.
+func yaml_parser_scan_uri_escapes(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, s *[]byte) bool {
+
+	// Decode the required number of characters.
+	w := 1024
+	for w > 0 {
+		// Check for a URI-escaped octet.
+		if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
+			return false
+		}
+
+		if !(parser.buffer[parser.buffer_pos] == '%' &&
+			is_hex(parser.buffer, parser.buffer_pos+1) &&
+			is_hex(parser.buffer, parser.buffer_pos+2)) {
+			return yaml_parser_set_scanner_tag_error(parser, directive,
+				start_mark, "did not find URI escaped octet")
+		}
+
+		// Get the octet.
+		octet := byte((as_hex(parser.buffer, parser.buffer_pos+1) << 4) + as_hex(parser.buffer, parser.buffer_pos+2))
+
+		// If it is the leading octet, determine the length of the UTF-8 sequence.
+		if w == 1024 {
+			w = width(octet)
+			if w == 0 {
+				return yaml_parser_set_scanner_tag_error(parser, directive,
+					start_mark, "found an incorrect leading UTF-8 octet")
+			}
+		} else {
+			// Check if the trailing octet is correct.
+			if octet&0xC0 != 0x80 {
+				return yaml_parser_set_scanner_tag_error(parser, directive,
+					start_mark, "found an incorrect trailing UTF-8 octet")
+			}
+		}
+
+		// Copy the octet and move the pointers.
+		*s = append(*s, octet)
+		skip(parser)
+		skip(parser)
+		skip(parser)
+		w--
+	}
+	return true
+}
+
+// Scan a block scalar.
+func yaml_parser_scan_block_scalar(parser *yaml_parser_t, token *yaml_token_t, literal bool) bool {
+	// Eat the indicator '|' or '>'.
+	start_mark := parser.mark
+	skip(parser)
+
+	// Scan the additional block scalar indicators.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+
+	// Check for a chomping indicator.
+	var chomping, increment int
+	if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
+		// Set the chomping method and eat the indicator.
+		if parser.buffer[parser.buffer_pos] == '+' {
+			chomping = +1
+		} else {
+			chomping = -1
+		}
+		skip(parser)
+
+		// Check for an indentation indicator.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		if is_digit(parser.buffer, parser.buffer_pos) {
+			// Check that the indentation is greater than 0.
+			if parser.buffer[parser.buffer_pos] == '0' {
+				yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+					start_mark, "found an indentation indicator equal to 0")
+				return false
+			}
+
+			// Get the indentation level and eat the indicator.
+			increment = as_digit(parser.buffer, parser.buffer_pos)
+			skip(parser)
+		}
+
+	} else if is_digit(parser.buffer, parser.buffer_pos) {
+		// Do the same as above, but in the opposite order.
+
+		if parser.buffer[parser.buffer_pos] == '0' {
+			yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+				start_mark, "found an indentation indicator equal to 0")
+			return false
+		}
+		increment = as_digit(parser.buffer, parser.buffer_pos)
+		skip(parser)
+
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
+			if parser.buffer[parser.buffer_pos] == '+' {
+				chomping = +1
+			} else {
+				chomping = -1
+			}
+			skip(parser)
+		}
+	}
+
+	// Eat whitespaces and comments to the end of the line.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	for is_blank(parser.buffer, parser.buffer_pos) {
+		skip(parser)
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+	}
+	if parser.buffer[parser.buffer_pos] == '#' {
+		for !is_breakz(parser.buffer, parser.buffer_pos) {
+			skip(parser)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+	}
+
+	// Check if we are at the end of the line.
+	if !is_breakz(parser.buffer, parser.buffer_pos) {
+		yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+			start_mark, "did not find expected comment or line break")
+		return false
+	}
+
+	// Eat a line break.
+	if is_break(parser.buffer, parser.buffer_pos) {
+		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+			return false
+		}
+		skip_line(parser)
+	}
+
+	end_mark := parser.mark
+
+	// Set the indentation level if it was specified.
+	var indent int
+	if increment > 0 {
+		if parser.indent >= 0 {
+			indent = parser.indent + increment
+		} else {
+			indent = increment
+		}
+	}
+
+	// Scan the leading line breaks and determine the indentation level if needed.
+	var s, leading_break, trailing_breaks []byte
+	if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
+		return false
+	}
+
+	// Scan the block scalar content.
+	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+		return false
+	}
+	var leading_blank, trailing_blank bool
+	for parser.mark.column == indent && !is_z(parser.buffer, parser.buffer_pos) {
+		// We are at the beginning of a non-empty line.
+
+		// Is it a trailing whitespace?
+		trailing_blank = is_blank(parser.buffer, parser.buffer_pos)
+
+		// Check if we need to fold the leading line break.
+		if !literal && !leading_blank && !trailing_blank && len(leading_break) > 0 && leading_break[0] == '\n' {
+			// Do we need to join the lines by space?
+			if len(trailing_breaks) == 0 {
+				s = append(s, ' ')
+			}
+		} else {
+			s = append(s, leading_break...)
+		}
+		leading_break = leading_break[:0]
+
+		// Append the remaining line breaks.
+		s = append(s, trailing_breaks...)
+		trailing_breaks = trailing_breaks[:0]
+
+		// Is it a leading whitespace?
+		leading_blank = is_blank(parser.buffer, parser.buffer_pos)
+
+		// Consume the current line.
+		for !is_breakz(parser.buffer, parser.buffer_pos) {
+			s = read(parser, s)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+
+		// Consume the line break.
+		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+			return false
+		}
+
+		leading_break = read_line(parser, leading_break)
+
+		// Eat the following indentation spaces and line breaks.
+		if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
+			return false
+		}
+	}
+
+	// Chomp the tail.
+	if chomping != -1 {
+		s = append(s, leading_break...)
+	}
+	if chomping == 1 {
+		s = append(s, trailing_breaks...)
+	}
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        yaml_SCALAR_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      s,
+		style:      yaml_LITERAL_SCALAR_STYLE,
+	}
+	if !literal {
+		token.style = yaml_FOLDED_SCALAR_STYLE
+	}
+	return true
+}
+
+// Scan indentation spaces and line breaks for a block scalar.  Determine the
+// indentation level if needed.
+func yaml_parser_scan_block_scalar_breaks(parser *yaml_parser_t, indent *int, breaks *[]byte, start_mark yaml_mark_t, end_mark *yaml_mark_t) bool {
+	*end_mark = parser.mark
+
+	// Eat the indentation spaces and line breaks.
+	max_indent := 0
+	for {
+		// Eat the indentation spaces.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+		for (*indent == 0 || parser.mark.column < *indent) && is_space(parser.buffer, parser.buffer_pos) {
+			skip(parser)
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+		if parser.mark.column > max_indent {
+			max_indent = parser.mark.column
+		}
+
+		// Check for a tab character messing the indentation.
+		if (*indent == 0 || parser.mark.column < *indent) && is_tab(parser.buffer, parser.buffer_pos) {
+			return yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+				start_mark, "found a tab character where an indentation space is expected")
+		}
+
+		// Have we found a non-empty line?
+		if !is_break(parser.buffer, parser.buffer_pos) {
+			break
+		}
+
+		// Consume the line break.
+		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+			return false
+		}
+		// [Go] Should really be returning breaks instead.
+		*breaks = read_line(parser, *breaks)
+		*end_mark = parser.mark
+	}
+
+	// Determine the indentation level if needed.
+	if *indent == 0 {
+		*indent = max_indent
+		if *indent < parser.indent+1 {
+			*indent = parser.indent + 1
+		}
+		if *indent < 1 {
+			*indent = 1
+		}
+	}
+	return true
+}
+
+// Scan a quoted scalar.
+func yaml_parser_scan_flow_scalar(parser *yaml_parser_t, token *yaml_token_t, single bool) bool {
+	// Eat the left quote.
+	start_mark := parser.mark
+	skip(parser)
+
+	// Consume the content of the quoted scalar.
+	var s, leading_break, trailing_breaks, whitespaces []byte
+	for {
+		// Check that there are no document indicators at the beginning of the line.
+		if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+			return false
+		}
+
+		if parser.mark.column == 0 &&
+			((parser.buffer[parser.buffer_pos+0] == '-' &&
+				parser.buffer[parser.buffer_pos+1] == '-' &&
+				parser.buffer[parser.buffer_pos+2] == '-') ||
+				(parser.buffer[parser.buffer_pos+0] == '.' &&
+					parser.buffer[parser.buffer_pos+1] == '.' &&
+					parser.buffer[parser.buffer_pos+2] == '.')) &&
+			is_blankz(parser.buffer, parser.buffer_pos+3) {
+			yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
+				start_mark, "found unexpected document indicator")
+			return false
+		}
+
+		// Check for EOF.
+		if is_z(parser.buffer, parser.buffer_pos) {
+			yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
+				start_mark, "found unexpected end of stream")
+			return false
+		}
+
+		// Consume non-blank characters.
+		leading_blanks := false
+		for !is_blankz(parser.buffer, parser.buffer_pos) {
+			if single && parser.buffer[parser.buffer_pos] == '\'' && parser.buffer[parser.buffer_pos+1] == '\'' {
+				// Is is an escaped single quote.
+				s = append(s, '\'')
+				skip(parser)
+				skip(parser)
+
+			} else if single && parser.buffer[parser.buffer_pos] == '\'' {
+				// It is a right single quote.
+				break
+			} else if !single && parser.buffer[parser.buffer_pos] == '"' {
+				// It is a right double quote.
+				break
+
+			} else if !single && parser.buffer[parser.buffer_pos] == '\\' && is_break(parser.buffer, parser.buffer_pos+1) {
+				// It is an escaped line break.
+				if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
+					return false
+				}
+				skip(parser)
+				skip_line(parser)
+				leading_blanks = true
+				break
+
+			} else if !single && parser.buffer[parser.buffer_pos] == '\\' {
+				// It is an escape sequence.
+				code_length := 0
+
+				// Check the escape character.
+				switch parser.buffer[parser.buffer_pos+1] {
+				case '0':
+					s = append(s, 0)
+				case 'a':
+					s = append(s, '\x07')
+				case 'b':
+					s = append(s, '\x08')
+				case 't', '\t':
+					s = append(s, '\x09')
+				case 'n':
+					s = append(s, '\x0A')
+				case 'v':
+					s = append(s, '\x0B')
+				case 'f':
+					s = append(s, '\x0C')
+				case 'r':
+					s = append(s, '\x0D')
+				case 'e':
+					s = append(s, '\x1B')
+				case ' ':
+					s = append(s, '\x20')
+				case '"':
+					s = append(s, '"')
+				case '\'':
+					s = append(s, '\'')
+				case '\\':
+					s = append(s, '\\')
+				case 'N': // NEL (#x85)
+					s = append(s, '\xC2')
+					s = append(s, '\x85')
+				case '_': // #xA0
+					s = append(s, '\xC2')
+					s = append(s, '\xA0')
+				case 'L': // LS (#x2028)
+					s = append(s, '\xE2')
+					s = append(s, '\x80')
+					s = append(s, '\xA8')
+				case 'P': // PS (#x2029)
+					s = append(s, '\xE2')
+					s = append(s, '\x80')
+					s = append(s, '\xA9')
+				case 'x':
+					code_length = 2
+				case 'u':
+					code_length = 4
+				case 'U':
+					code_length = 8
+				default:
+					yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+						start_mark, "found unknown escape character")
+					return false
+				}
+
+				skip(parser)
+				skip(parser)
+
+				// Consume an arbitrary escape code.
+				if code_length > 0 {
+					var value int
+
+					// Scan the character value.
+					if parser.unread < code_length && !yaml_parser_update_buffer(parser, code_length) {
+						return false
+					}
+					for k := 0; k < code_length; k++ {
+						if !is_hex(parser.buffer, parser.buffer_pos+k) {
+							yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+								start_mark, "did not find expected hexdecimal number")
+							return false
+						}
+						value = (value << 4) + as_hex(parser.buffer, parser.buffer_pos+k)
+					}
+
+					// Check the value and write the character.
+					if (value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF {
+						yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+							start_mark, "found invalid Unicode character escape code")
+						return false
+					}
+					if value <= 0x7F {
+						s = append(s, byte(value))
+					} else if value <= 0x7FF {
+						s = append(s, byte(0xC0+(value>>6)))
+						s = append(s, byte(0x80+(value&0x3F)))
+					} else if value <= 0xFFFF {
+						s = append(s, byte(0xE0+(value>>12)))
+						s = append(s, byte(0x80+((value>>6)&0x3F)))
+						s = append(s, byte(0x80+(value&0x3F)))
+					} else {
+						s = append(s, byte(0xF0+(value>>18)))
+						s = append(s, byte(0x80+((value>>12)&0x3F)))
+						s = append(s, byte(0x80+((value>>6)&0x3F)))
+						s = append(s, byte(0x80+(value&0x3F)))
+					}
+
+					// Advance the pointer.
+					for k := 0; k < code_length; k++ {
+						skip(parser)
+					}
+				}
+			} else {
+				// It is a non-escaped non-blank character.
+				s = read(parser, s)
+			}
+			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+				return false
+			}
+		}
+
+		// Check if we are at the end of the scalar.
+		if single {
+			if parser.buffer[parser.buffer_pos] == '\'' {
+				break
+			}
+		} else {
+			if parser.buffer[parser.buffer_pos] == '"' {
+				break
+			}
+		}
+
+		// Consume blank characters.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+
+		for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
+			if is_blank(parser.buffer, parser.buffer_pos) {
+				// Consume a space or a tab character.
+				if !leading_blanks {
+					whitespaces = read(parser, whitespaces)
+				} else {
+					skip(parser)
+				}
+			} else {
+				if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+					return false
+				}
+
+				// Check if it is a first line break.
+				if !leading_blanks {
+					whitespaces = whitespaces[:0]
+					leading_break = read_line(parser, leading_break)
+					leading_blanks = true
+				} else {
+					trailing_breaks = read_line(parser, trailing_breaks)
+				}
+			}
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+
+		// Join the whitespaces or fold line breaks.
+		if leading_blanks {
+			// Do we need to fold line breaks?
+			if len(leading_break) > 0 && leading_break[0] == '\n' {
+				if len(trailing_breaks) == 0 {
+					s = append(s, ' ')
+				} else {
+					s = append(s, trailing_breaks...)
+				}
+			} else {
+				s = append(s, leading_break...)
+				s = append(s, trailing_breaks...)
+			}
+			trailing_breaks = trailing_breaks[:0]
+			leading_break = leading_break[:0]
+		} else {
+			s = append(s, whitespaces...)
+			whitespaces = whitespaces[:0]
+		}
+	}
+
+	// Eat the right quote.
+	skip(parser)
+	end_mark := parser.mark
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        yaml_SCALAR_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      s,
+		style:      yaml_SINGLE_QUOTED_SCALAR_STYLE,
+	}
+	if !single {
+		token.style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	}
+	return true
+}
+
+// Scan a plain scalar.
+func yaml_parser_scan_plain_scalar(parser *yaml_parser_t, token *yaml_token_t) bool {
+
+	var s, leading_break, trailing_breaks, whitespaces []byte
+	var leading_blanks bool
+	var indent = parser.indent + 1
+
+	start_mark := parser.mark
+	end_mark := parser.mark
+
+	// Consume the content of the plain scalar.
+	for {
+		// Check for a document indicator.
+		if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+			return false
+		}
+		if parser.mark.column == 0 &&
+			((parser.buffer[parser.buffer_pos+0] == '-' &&
+				parser.buffer[parser.buffer_pos+1] == '-' &&
+				parser.buffer[parser.buffer_pos+2] == '-') ||
+				(parser.buffer[parser.buffer_pos+0] == '.' &&
+					parser.buffer[parser.buffer_pos+1] == '.' &&
+					parser.buffer[parser.buffer_pos+2] == '.')) &&
+			is_blankz(parser.buffer, parser.buffer_pos+3) {
+			break
+		}
+
+		// Check for a comment.
+		if parser.buffer[parser.buffer_pos] == '#' {
+			break
+		}
+
+		// Consume non-blank characters.
+		for !is_blankz(parser.buffer, parser.buffer_pos) {
+
+			// Check for 'x:x' in the flow context. TODO: Fix the test "spec-08-13".
+			if parser.flow_level > 0 &&
+				parser.buffer[parser.buffer_pos] == ':' &&
+				!is_blankz(parser.buffer, parser.buffer_pos+1) {
+				yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
+					start_mark, "found unexpected ':'")
+				return false
+			}
+
+			// Check for indicators that may end a plain scalar.
+			if (parser.buffer[parser.buffer_pos] == ':' && is_blankz(parser.buffer, parser.buffer_pos+1)) ||
+				(parser.flow_level > 0 &&
+					(parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == ':' ||
+						parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == '[' ||
+						parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
+						parser.buffer[parser.buffer_pos] == '}')) {
+				break
+			}
+
+			// Check if we need to join whitespaces and breaks.
+			if leading_blanks || len(whitespaces) > 0 {
+				if leading_blanks {
+					// Do we need to fold line breaks?
+					if leading_break[0] == '\n' {
+						if len(trailing_breaks) == 0 {
+							s = append(s, ' ')
+						} else {
+							s = append(s, trailing_breaks...)
+						}
+					} else {
+						s = append(s, leading_break...)
+						s = append(s, trailing_breaks...)
+					}
+					trailing_breaks = trailing_breaks[:0]
+					leading_break = leading_break[:0]
+					leading_blanks = false
+				} else {
+					s = append(s, whitespaces...)
+					whitespaces = whitespaces[:0]
+				}
+			}
+
+			// Copy the character.
+			s = read(parser, s)
+
+			end_mark = parser.mark
+			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+				return false
+			}
+		}
+
+		// Is it the end?
+		if !(is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos)) {
+			break
+		}
+
+		// Consume blank characters.
+		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+			return false
+		}
+
+		for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
+			if is_blank(parser.buffer, parser.buffer_pos) {
+
+				// Check for tab character that abuse indentation.
+				if leading_blanks && parser.mark.column < indent && is_tab(parser.buffer, parser.buffer_pos) {
+					yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
+						start_mark, "found a tab character that violate indentation")
+					return false
+				}
+
+				// Consume a space or a tab character.
+				if !leading_blanks {
+					whitespaces = read(parser, whitespaces)
+				} else {
+					skip(parser)
+				}
+			} else {
+				if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+					return false
+				}
+
+				// Check if it is a first line break.
+				if !leading_blanks {
+					whitespaces = whitespaces[:0]
+					leading_break = read_line(parser, leading_break)
+					leading_blanks = true
+				} else {
+					trailing_breaks = read_line(parser, trailing_breaks)
+				}
+			}
+			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+				return false
+			}
+		}
+
+		// Check indentation level.
+		if parser.flow_level == 0 && parser.mark.column < indent {
+			break
+		}
+	}
+
+	// Create a token.
+	*token = yaml_token_t{
+		typ:        yaml_SCALAR_TOKEN,
+		start_mark: start_mark,
+		end_mark:   end_mark,
+		value:      s,
+		style:      yaml_PLAIN_SCALAR_STYLE,
+	}
+
+	// Note that we change the 'simple_key_allowed' flag.
+	if leading_blanks {
+		parser.simple_key_allowed = true
+	}
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/sorter.go b/vendor/gopkg.in/yaml.v2/sorter.go
new file mode 100644
index 0000000..5958822
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/sorter.go
@@ -0,0 +1,104 @@
+package yaml
+
+import (
+	"reflect"
+	"unicode"
+)
+
+type keyList []reflect.Value
+
+func (l keyList) Len() int      { return len(l) }
+func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
+func (l keyList) Less(i, j int) bool {
+	a := l[i]
+	b := l[j]
+	ak := a.Kind()
+	bk := b.Kind()
+	for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
+		a = a.Elem()
+		ak = a.Kind()
+	}
+	for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
+		b = b.Elem()
+		bk = b.Kind()
+	}
+	af, aok := keyFloat(a)
+	bf, bok := keyFloat(b)
+	if aok && bok {
+		if af != bf {
+			return af < bf
+		}
+		if ak != bk {
+			return ak < bk
+		}
+		return numLess(a, b)
+	}
+	if ak != reflect.String || bk != reflect.String {
+		return ak < bk
+	}
+	ar, br := []rune(a.String()), []rune(b.String())
+	for i := 0; i < len(ar) && i < len(br); i++ {
+		if ar[i] == br[i] {
+			continue
+		}
+		al := unicode.IsLetter(ar[i])
+		bl := unicode.IsLetter(br[i])
+		if al && bl {
+			return ar[i] < br[i]
+		}
+		if al || bl {
+			return bl
+		}
+		var ai, bi int
+		var an, bn int64
+		for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
+			an = an*10 + int64(ar[ai]-'0')
+		}
+		for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
+			bn = bn*10 + int64(br[bi]-'0')
+		}
+		if an != bn {
+			return an < bn
+		}
+		if ai != bi {
+			return ai < bi
+		}
+		return ar[i] < br[i]
+	}
+	return len(ar) < len(br)
+}
+
+// keyFloat returns a float value for v if it is a number/bool
+// and whether it is a number/bool or not.
+func keyFloat(v reflect.Value) (f float64, ok bool) {
+	switch v.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return float64(v.Int()), true
+	case reflect.Float32, reflect.Float64:
+		return v.Float(), true
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return float64(v.Uint()), true
+	case reflect.Bool:
+		if v.Bool() {
+			return 1, true
+		}
+		return 0, true
+	}
+	return 0, false
+}
+
+// numLess returns whether a < b.
+// a and b must necessarily have the same kind.
+func numLess(a, b reflect.Value) bool {
+	switch a.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return a.Int() < b.Int()
+	case reflect.Float32, reflect.Float64:
+		return a.Float() < b.Float()
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return a.Uint() < b.Uint()
+	case reflect.Bool:
+		return !a.Bool() && b.Bool()
+	}
+	panic("not a number")
+}
diff --git a/vendor/gopkg.in/yaml.v2/suite_test.go b/vendor/gopkg.in/yaml.v2/suite_test.go
new file mode 100644
index 0000000..c5cf1ed
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/suite_test.go
@@ -0,0 +1,12 @@
+package yaml_test
+
+import (
+	. "gopkg.in/check.v1"
+	"testing"
+)
+
+func Test(t *testing.T) { TestingT(t) }
+
+type S struct{}
+
+var _ = Suite(&S{})
diff --git a/vendor/gopkg.in/yaml.v2/writerc.go b/vendor/gopkg.in/yaml.v2/writerc.go
new file mode 100644
index 0000000..190362f
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/writerc.go
@@ -0,0 +1,89 @@
+package yaml
+
+// Set the writer error and return false.
+func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
+	emitter.error = yaml_WRITER_ERROR
+	emitter.problem = problem
+	return false
+}
+
+// Flush the output buffer.
+func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
+	if emitter.write_handler == nil {
+		panic("write handler not set")
+	}
+
+	// Check if the buffer is empty.
+	if emitter.buffer_pos == 0 {
+		return true
+	}
+
+	// If the output encoding is UTF-8, we don't need to recode the buffer.
+	if emitter.encoding == yaml_UTF8_ENCODING {
+		if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
+			return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+		}
+		emitter.buffer_pos = 0
+		return true
+	}
+
+	// Recode the buffer into the raw buffer.
+	var low, high int
+	if emitter.encoding == yaml_UTF16LE_ENCODING {
+		low, high = 0, 1
+	} else {
+		high, low = 1, 0
+	}
+
+	pos := 0
+	for pos < emitter.buffer_pos {
+		// See the "reader.c" code for more details on UTF-8 encoding.  Note
+		// that we assume that the buffer contains a valid UTF-8 sequence.
+
+		// Read the next UTF-8 character.
+		octet := emitter.buffer[pos]
+
+		var w int
+		var value rune
+		switch {
+		case octet&0x80 == 0x00:
+			w, value = 1, rune(octet&0x7F)
+		case octet&0xE0 == 0xC0:
+			w, value = 2, rune(octet&0x1F)
+		case octet&0xF0 == 0xE0:
+			w, value = 3, rune(octet&0x0F)
+		case octet&0xF8 == 0xF0:
+			w, value = 4, rune(octet&0x07)
+		}
+		for k := 1; k < w; k++ {
+			octet = emitter.buffer[pos+k]
+			value = (value << 6) + (rune(octet) & 0x3F)
+		}
+		pos += w
+
+		// Write the character.
+		if value < 0x10000 {
+			var b [2]byte
+			b[high] = byte(value >> 8)
+			b[low] = byte(value & 0xFF)
+			emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1])
+		} else {
+			// Write the character using a surrogate pair (check "reader.c").
+			var b [4]byte
+			value -= 0x10000
+			b[high] = byte(0xD8 + (value >> 18))
+			b[low] = byte((value >> 10) & 0xFF)
+			b[high+2] = byte(0xDC + ((value >> 8) & 0xFF))
+			b[low+2] = byte(value & 0xFF)
+			emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1], b[2], b[3])
+		}
+	}
+
+	// Write the raw buffer.
+	if err := emitter.write_handler(emitter, emitter.raw_buffer); err != nil {
+		return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+	}
+	emitter.buffer_pos = 0
+	emitter.raw_buffer = emitter.raw_buffer[:0]
+	return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/yaml.go b/vendor/gopkg.in/yaml.v2/yaml.go
new file mode 100644
index 0000000..bf18884
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yaml.go
@@ -0,0 +1,357 @@
+// Package yaml implements YAML support for the Go language.
+//
+// Source code and other details for the project are available at GitHub:
+//
+//   https://github.com/go-yaml/yaml
+//
+package yaml
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+)
+
+// MapSlice encodes and decodes as a YAML map.
+// The order of keys is preserved when encoding and decoding.
+type MapSlice []MapItem
+
+// MapItem is an item in a MapSlice.
+type MapItem struct {
+	Key, Value interface{}
+}
+
+// The Unmarshaler interface may be implemented by types to customize their
+// behavior when being unmarshaled from a YAML document. The UnmarshalYAML
+// method receives a function that may be called to unmarshal the original
+// YAML value into a field or variable. It is safe to call the unmarshal
+// function parameter more than once if necessary.
+type Unmarshaler interface {
+	UnmarshalYAML(unmarshal func(interface{}) error) error
+}
+
+// The Marshaler interface may be implemented by types to customize their
+// behavior when being marshaled into a YAML document. The returned value
+// is marshaled in place of the original value implementing Marshaler.
+//
+// If an error is returned by MarshalYAML, the marshaling procedure stops
+// and returns with the provided error.
+type Marshaler interface {
+	MarshalYAML() (interface{}, error)
+}
+
+// Unmarshal decodes the first document found within the in byte slice
+// and assigns decoded values into the out value.
+//
+// Maps and pointers (to a struct, string, int, etc) are accepted as out
+// values. If an internal pointer within a struct is not initialized,
+// the yaml package will initialize it if necessary for unmarshalling
+// the provided data. The out parameter must not be nil.
+//
+// The type of the decoded values should be compatible with the respective
+// values in out. If one or more values cannot be decoded due to a type
+// mismatches, decoding continues partially until the end of the YAML
+// content, and a *yaml.TypeError is returned with details for all
+// missed values.
+//
+// Struct fields are only unmarshalled if they are exported (have an
+// upper case first letter), and are unmarshalled using the field name
+// lowercased as the default key. Custom keys may be defined via the
+// "yaml" name in the field tag: the content preceding the first comma
+// is used as the key, and the following comma-separated options are
+// used to tweak the marshalling process (see Marshal).
+// Conflicting names result in a runtime error.
+//
+// For example:
+//
+//     type T struct {
+//         F int `yaml:"a,omitempty"`
+//         B int
+//     }
+//     var t T
+//     yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
+//
+// See the documentation of Marshal for the format of tags and a list of
+// supported tag options.
+//
+func Unmarshal(in []byte, out interface{}) (err error) {
+	return unmarshal(in, out, false)
+}
+
+// UnmarshalStrict is like Unmarshal except that any fields that are found
+// in the data that do not have corresponding struct members will result in
+// an error.
+func UnmarshalStrict(in []byte, out interface{}) (err error) {
+	return unmarshal(in, out, true)
+}
+
+func unmarshal(in []byte, out interface{}, strict bool) (err error) {
+	defer handleErr(&err)
+	d := newDecoder(strict)
+	p := newParser(in)
+	defer p.destroy()
+	node := p.parse()
+	if node != nil {
+		v := reflect.ValueOf(out)
+		if v.Kind() == reflect.Ptr && !v.IsNil() {
+			v = v.Elem()
+		}
+		d.unmarshal(node, v)
+	}
+	if len(d.terrors) > 0 {
+		return &TypeError{d.terrors}
+	}
+	return nil
+}
+
+// Marshal serializes the value provided into a YAML document. The structure
+// of the generated document will reflect the structure of the value itself.
+// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
+//
+// Struct fields are only unmarshalled if they are exported (have an upper case
+// first letter), and are unmarshalled using the field name lowercased as the
+// default key. Custom keys may be defined via the "yaml" name in the field
+// tag: the content preceding the first comma is used as the key, and the
+// following comma-separated options are used to tweak the marshalling process.
+// Conflicting names result in a runtime error.
+//
+// The field tag format accepted is:
+//
+//     `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
+//
+// The following flags are currently supported:
+//
+//     omitempty    Only include the field if it's not set to the zero
+//                  value for the type or to empty slices or maps.
+//                  Does not apply to zero valued structs.
+//
+//     flow         Marshal using a flow style (useful for structs,
+//                  sequences and maps).
+//
+//     inline       Inline the field, which must be a struct or a map,
+//                  causing all of its fields or keys to be processed as if
+//                  they were part of the outer struct. For maps, keys must
+//                  not conflict with the yaml keys of other struct fields.
+//
+// In addition, if the key is "-", the field is ignored.
+//
+// For example:
+//
+//     type T struct {
+//         F int "a,omitempty"
+//         B int
+//     }
+//     yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
+//     yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
+//
+func Marshal(in interface{}) (out []byte, err error) {
+	defer handleErr(&err)
+	e := newEncoder()
+	defer e.destroy()
+	e.marshal("", reflect.ValueOf(in))
+	e.finish()
+	out = e.out
+	return
+}
+
+func handleErr(err *error) {
+	if v := recover(); v != nil {
+		if e, ok := v.(yamlError); ok {
+			*err = e.err
+		} else {
+			panic(v)
+		}
+	}
+}
+
+type yamlError struct {
+	err error
+}
+
+func fail(err error) {
+	panic(yamlError{err})
+}
+
+func failf(format string, args ...interface{}) {
+	panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
+}
+
+// A TypeError is returned by Unmarshal when one or more fields in
+// the YAML document cannot be properly decoded into the requested
+// types. When this error is returned, the value is still
+// unmarshaled partially.
+type TypeError struct {
+	Errors []string
+}
+
+func (e *TypeError) Error() string {
+	return fmt.Sprintf("yaml: unmarshal errors:\n  %s", strings.Join(e.Errors, "\n  "))
+}
+
+// --------------------------------------------------------------------------
+// Maintain a mapping of keys to structure field indexes
+
+// The code in this section was copied from mgo/bson.
+
+// structInfo holds details for the serialization of fields of
+// a given struct.
+type structInfo struct {
+	FieldsMap  map[string]fieldInfo
+	FieldsList []fieldInfo
+
+	// InlineMap is the number of the field in the struct that
+	// contains an ,inline map, or -1 if there's none.
+	InlineMap int
+}
+
+type fieldInfo struct {
+	Key       string
+	Num       int
+	OmitEmpty bool
+	Flow      bool
+
+	// Inline holds the field index if the field is part of an inlined struct.
+	Inline []int
+}
+
+var structMap = make(map[reflect.Type]*structInfo)
+var fieldMapMutex sync.RWMutex
+
+func getStructInfo(st reflect.Type) (*structInfo, error) {
+	fieldMapMutex.RLock()
+	sinfo, found := structMap[st]
+	fieldMapMutex.RUnlock()
+	if found {
+		return sinfo, nil
+	}
+
+	n := st.NumField()
+	fieldsMap := make(map[string]fieldInfo)
+	fieldsList := make([]fieldInfo, 0, n)
+	inlineMap := -1
+	for i := 0; i != n; i++ {
+		field := st.Field(i)
+		if field.PkgPath != "" && !field.Anonymous {
+			continue // Private field
+		}
+
+		info := fieldInfo{Num: i}
+
+		tag := field.Tag.Get("yaml")
+		if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
+			tag = string(field.Tag)
+		}
+		if tag == "-" {
+			continue
+		}
+
+		inline := false
+		fields := strings.Split(tag, ",")
+		if len(fields) > 1 {
+			for _, flag := range fields[1:] {
+				switch flag {
+				case "omitempty":
+					info.OmitEmpty = true
+				case "flow":
+					info.Flow = true
+				case "inline":
+					inline = true
+				default:
+					return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
+				}
+			}
+			tag = fields[0]
+		}
+
+		if inline {
+			switch field.Type.Kind() {
+			case reflect.Map:
+				if inlineMap >= 0 {
+					return nil, errors.New("Multiple ,inline maps in struct " + st.String())
+				}
+				if field.Type.Key() != reflect.TypeOf("") {
+					return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
+				}
+				inlineMap = info.Num
+			case reflect.Struct:
+				sinfo, err := getStructInfo(field.Type)
+				if err != nil {
+					return nil, err
+				}
+				for _, finfo := range sinfo.FieldsList {
+					if _, found := fieldsMap[finfo.Key]; found {
+						msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
+						return nil, errors.New(msg)
+					}
+					if finfo.Inline == nil {
+						finfo.Inline = []int{i, finfo.Num}
+					} else {
+						finfo.Inline = append([]int{i}, finfo.Inline...)
+					}
+					fieldsMap[finfo.Key] = finfo
+					fieldsList = append(fieldsList, finfo)
+				}
+			default:
+				//return nil, errors.New("Option ,inline needs a struct value or map field")
+				return nil, errors.New("Option ,inline needs a struct value field")
+			}
+			continue
+		}
+
+		if tag != "" {
+			info.Key = tag
+		} else {
+			info.Key = strings.ToLower(field.Name)
+		}
+
+		if _, found = fieldsMap[info.Key]; found {
+			msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
+			return nil, errors.New(msg)
+		}
+
+		fieldsList = append(fieldsList, info)
+		fieldsMap[info.Key] = info
+	}
+
+	sinfo = &structInfo{fieldsMap, fieldsList, inlineMap}
+
+	fieldMapMutex.Lock()
+	structMap[st] = sinfo
+	fieldMapMutex.Unlock()
+	return sinfo, nil
+}
+
+func isZero(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.String:
+		return len(v.String()) == 0
+	case reflect.Interface, reflect.Ptr:
+		return v.IsNil()
+	case reflect.Slice:
+		return v.Len() == 0
+	case reflect.Map:
+		return v.Len() == 0
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Bool:
+		return !v.Bool()
+	case reflect.Struct:
+		vt := v.Type()
+		for i := v.NumField() - 1; i >= 0; i-- {
+			if vt.Field(i).PkgPath != "" {
+				continue // Private field
+			}
+			if !isZero(v.Field(i)) {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}
diff --git a/vendor/gopkg.in/yaml.v2/yamlh.go b/vendor/gopkg.in/yaml.v2/yamlh.go
new file mode 100644
index 0000000..3caeca0
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yamlh.go
@@ -0,0 +1,716 @@
+package yaml
+
+import (
+	"io"
+)
+
+// The version directive data.
+type yaml_version_directive_t struct {
+	major int8 // The major version number.
+	minor int8 // The minor version number.
+}
+
+// The tag directive data.
+type yaml_tag_directive_t struct {
+	handle []byte // The tag handle.
+	prefix []byte // The tag prefix.
+}
+
+type yaml_encoding_t int
+
+// The stream encoding.
+const (
+	// Let the parser choose the encoding.
+	yaml_ANY_ENCODING yaml_encoding_t = iota
+
+	yaml_UTF8_ENCODING    // The default UTF-8 encoding.
+	yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
+	yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
+)
+
+type yaml_break_t int
+
+// Line break types.
+const (
+	// Let the parser choose the break type.
+	yaml_ANY_BREAK yaml_break_t = iota
+
+	yaml_CR_BREAK   // Use CR for line breaks (Mac style).
+	yaml_LN_BREAK   // Use LN for line breaks (Unix style).
+	yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
+)
+
+type yaml_error_type_t int
+
+// Many bad things could happen with the parser and emitter.
+const (
+	// No error is produced.
+	yaml_NO_ERROR yaml_error_type_t = iota
+
+	yaml_MEMORY_ERROR   // Cannot allocate or reallocate a block of memory.
+	yaml_READER_ERROR   // Cannot read or decode the input stream.
+	yaml_SCANNER_ERROR  // Cannot scan the input stream.
+	yaml_PARSER_ERROR   // Cannot parse the input stream.
+	yaml_COMPOSER_ERROR // Cannot compose a YAML document.
+	yaml_WRITER_ERROR   // Cannot write to the output stream.
+	yaml_EMITTER_ERROR  // Cannot emit a YAML stream.
+)
+
+// The pointer position.
+type yaml_mark_t struct {
+	index  int // The position index.
+	line   int // The position line.
+	column int // The position column.
+}
+
+// Node Styles
+
+type yaml_style_t int8
+
+type yaml_scalar_style_t yaml_style_t
+
+// Scalar styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
+
+	yaml_PLAIN_SCALAR_STYLE         // The plain scalar style.
+	yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
+	yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
+	yaml_LITERAL_SCALAR_STYLE       // The literal scalar style.
+	yaml_FOLDED_SCALAR_STYLE        // The folded scalar style.
+)
+
+type yaml_sequence_style_t yaml_style_t
+
+// Sequence styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
+
+	yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
+	yaml_FLOW_SEQUENCE_STYLE  // The flow sequence style.
+)
+
+type yaml_mapping_style_t yaml_style_t
+
+// Mapping styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
+
+	yaml_BLOCK_MAPPING_STYLE // The block mapping style.
+	yaml_FLOW_MAPPING_STYLE  // The flow mapping style.
+)
+
+// Tokens
+
+type yaml_token_type_t int
+
+// Token types.
+const (
+	// An empty token.
+	yaml_NO_TOKEN yaml_token_type_t = iota
+
+	yaml_STREAM_START_TOKEN // A STREAM-START token.
+	yaml_STREAM_END_TOKEN   // A STREAM-END token.
+
+	yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
+	yaml_TAG_DIRECTIVE_TOKEN     // A TAG-DIRECTIVE token.
+	yaml_DOCUMENT_START_TOKEN    // A DOCUMENT-START token.
+	yaml_DOCUMENT_END_TOKEN      // A DOCUMENT-END token.
+
+	yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
+	yaml_BLOCK_MAPPING_START_TOKEN  // A BLOCK-SEQUENCE-END token.
+	yaml_BLOCK_END_TOKEN            // A BLOCK-END token.
+
+	yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
+	yaml_FLOW_SEQUENCE_END_TOKEN   // A FLOW-SEQUENCE-END token.
+	yaml_FLOW_MAPPING_START_TOKEN  // A FLOW-MAPPING-START token.
+	yaml_FLOW_MAPPING_END_TOKEN    // A FLOW-MAPPING-END token.
+
+	yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
+	yaml_FLOW_ENTRY_TOKEN  // A FLOW-ENTRY token.
+	yaml_KEY_TOKEN         // A KEY token.
+	yaml_VALUE_TOKEN       // A VALUE token.
+
+	yaml_ALIAS_TOKEN  // An ALIAS token.
+	yaml_ANCHOR_TOKEN // An ANCHOR token.
+	yaml_TAG_TOKEN    // A TAG token.
+	yaml_SCALAR_TOKEN // A SCALAR token.
+)
+
+func (tt yaml_token_type_t) String() string {
+	switch tt {
+	case yaml_NO_TOKEN:
+		return "yaml_NO_TOKEN"
+	case yaml_STREAM_START_TOKEN:
+		return "yaml_STREAM_START_TOKEN"
+	case yaml_STREAM_END_TOKEN:
+		return "yaml_STREAM_END_TOKEN"
+	case yaml_VERSION_DIRECTIVE_TOKEN:
+		return "yaml_VERSION_DIRECTIVE_TOKEN"
+	case yaml_TAG_DIRECTIVE_TOKEN:
+		return "yaml_TAG_DIRECTIVE_TOKEN"
+	case yaml_DOCUMENT_START_TOKEN:
+		return "yaml_DOCUMENT_START_TOKEN"
+	case yaml_DOCUMENT_END_TOKEN:
+		return "yaml_DOCUMENT_END_TOKEN"
+	case yaml_BLOCK_SEQUENCE_START_TOKEN:
+		return "yaml_BLOCK_SEQUENCE_START_TOKEN"
+	case yaml_BLOCK_MAPPING_START_TOKEN:
+		return "yaml_BLOCK_MAPPING_START_TOKEN"
+	case yaml_BLOCK_END_TOKEN:
+		return "yaml_BLOCK_END_TOKEN"
+	case yaml_FLOW_SEQUENCE_START_TOKEN:
+		return "yaml_FLOW_SEQUENCE_START_TOKEN"
+	case yaml_FLOW_SEQUENCE_END_TOKEN:
+		return "yaml_FLOW_SEQUENCE_END_TOKEN"
+	case yaml_FLOW_MAPPING_START_TOKEN:
+		return "yaml_FLOW_MAPPING_START_TOKEN"
+	case yaml_FLOW_MAPPING_END_TOKEN:
+		return "yaml_FLOW_MAPPING_END_TOKEN"
+	case yaml_BLOCK_ENTRY_TOKEN:
+		return "yaml_BLOCK_ENTRY_TOKEN"
+	case yaml_FLOW_ENTRY_TOKEN:
+		return "yaml_FLOW_ENTRY_TOKEN"
+	case yaml_KEY_TOKEN:
+		return "yaml_KEY_TOKEN"
+	case yaml_VALUE_TOKEN:
+		return "yaml_VALUE_TOKEN"
+	case yaml_ALIAS_TOKEN:
+		return "yaml_ALIAS_TOKEN"
+	case yaml_ANCHOR_TOKEN:
+		return "yaml_ANCHOR_TOKEN"
+	case yaml_TAG_TOKEN:
+		return "yaml_TAG_TOKEN"
+	case yaml_SCALAR_TOKEN:
+		return "yaml_SCALAR_TOKEN"
+	}
+	return "<unknown token>"
+}
+
+// The token structure.
+type yaml_token_t struct {
+	// The token type.
+	typ yaml_token_type_t
+
+	// The start/end of the token.
+	start_mark, end_mark yaml_mark_t
+
+	// The stream encoding (for yaml_STREAM_START_TOKEN).
+	encoding yaml_encoding_t
+
+	// The alias/anchor/scalar value or tag/tag directive handle
+	// (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
+	value []byte
+
+	// The tag suffix (for yaml_TAG_TOKEN).
+	suffix []byte
+
+	// The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
+	prefix []byte
+
+	// The scalar style (for yaml_SCALAR_TOKEN).
+	style yaml_scalar_style_t
+
+	// The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
+	major, minor int8
+}
+
+// Events
+
+type yaml_event_type_t int8
+
+// Event types.
+const (
+	// An empty event.
+	yaml_NO_EVENT yaml_event_type_t = iota
+
+	yaml_STREAM_START_EVENT   // A STREAM-START event.
+	yaml_STREAM_END_EVENT     // A STREAM-END event.
+	yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
+	yaml_DOCUMENT_END_EVENT   // A DOCUMENT-END event.
+	yaml_ALIAS_EVENT          // An ALIAS event.
+	yaml_SCALAR_EVENT         // A SCALAR event.
+	yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
+	yaml_SEQUENCE_END_EVENT   // A SEQUENCE-END event.
+	yaml_MAPPING_START_EVENT  // A MAPPING-START event.
+	yaml_MAPPING_END_EVENT    // A MAPPING-END event.
+)
+
+// The event structure.
+type yaml_event_t struct {
+
+	// The event type.
+	typ yaml_event_type_t
+
+	// The start and end of the event.
+	start_mark, end_mark yaml_mark_t
+
+	// The document encoding (for yaml_STREAM_START_EVENT).
+	encoding yaml_encoding_t
+
+	// The version directive (for yaml_DOCUMENT_START_EVENT).
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives (for yaml_DOCUMENT_START_EVENT).
+	tag_directives []yaml_tag_directive_t
+
+	// The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
+	anchor []byte
+
+	// The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	tag []byte
+
+	// The scalar value (for yaml_SCALAR_EVENT).
+	value []byte
+
+	// Is the document start/end indicator implicit, or the tag optional?
+	// (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
+	implicit bool
+
+	// Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
+	quoted_implicit bool
+
+	// The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	style yaml_style_t
+}
+
+func (e *yaml_event_t) scalar_style() yaml_scalar_style_t     { return yaml_scalar_style_t(e.style) }
+func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
+func (e *yaml_event_t) mapping_style() yaml_mapping_style_t   { return yaml_mapping_style_t(e.style) }
+
+// Nodes
+
+const (
+	yaml_NULL_TAG      = "tag:yaml.org,2002:null"      // The tag !!null with the only possible value: null.
+	yaml_BOOL_TAG      = "tag:yaml.org,2002:bool"      // The tag !!bool with the values: true and false.
+	yaml_STR_TAG       = "tag:yaml.org,2002:str"       // The tag !!str for string values.
+	yaml_INT_TAG       = "tag:yaml.org,2002:int"       // The tag !!int for integer values.
+	yaml_FLOAT_TAG     = "tag:yaml.org,2002:float"     // The tag !!float for float values.
+	yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
+
+	yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
+	yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
+
+	// Not in original libyaml.
+	yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
+	yaml_MERGE_TAG  = "tag:yaml.org,2002:merge"
+
+	yaml_DEFAULT_SCALAR_TAG   = yaml_STR_TAG // The default scalar tag is !!str.
+	yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
+	yaml_DEFAULT_MAPPING_TAG  = yaml_MAP_TAG // The default mapping tag is !!map.
+)
+
+type yaml_node_type_t int
+
+// Node types.
+const (
+	// An empty node.
+	yaml_NO_NODE yaml_node_type_t = iota
+
+	yaml_SCALAR_NODE   // A scalar node.
+	yaml_SEQUENCE_NODE // A sequence node.
+	yaml_MAPPING_NODE  // A mapping node.
+)
+
+// An element of a sequence node.
+type yaml_node_item_t int
+
+// An element of a mapping node.
+type yaml_node_pair_t struct {
+	key   int // The key of the element.
+	value int // The value of the element.
+}
+
+// The node structure.
+type yaml_node_t struct {
+	typ yaml_node_type_t // The node type.
+	tag []byte           // The node tag.
+
+	// The node data.
+
+	// The scalar parameters (for yaml_SCALAR_NODE).
+	scalar struct {
+		value  []byte              // The scalar value.
+		length int                 // The length of the scalar value.
+		style  yaml_scalar_style_t // The scalar style.
+	}
+
+	// The sequence parameters (for YAML_SEQUENCE_NODE).
+	sequence struct {
+		items_data []yaml_node_item_t    // The stack of sequence items.
+		style      yaml_sequence_style_t // The sequence style.
+	}
+
+	// The mapping parameters (for yaml_MAPPING_NODE).
+	mapping struct {
+		pairs_data  []yaml_node_pair_t   // The stack of mapping pairs (key, value).
+		pairs_start *yaml_node_pair_t    // The beginning of the stack.
+		pairs_end   *yaml_node_pair_t    // The end of the stack.
+		pairs_top   *yaml_node_pair_t    // The top of the stack.
+		style       yaml_mapping_style_t // The mapping style.
+	}
+
+	start_mark yaml_mark_t // The beginning of the node.
+	end_mark   yaml_mark_t // The end of the node.
+
+}
+
+// The document structure.
+type yaml_document_t struct {
+
+	// The document nodes.
+	nodes []yaml_node_t
+
+	// The version directive.
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives.
+	tag_directives_data  []yaml_tag_directive_t
+	tag_directives_start int // The beginning of the tag directives list.
+	tag_directives_end   int // The end of the tag directives list.
+
+	start_implicit int // Is the document start indicator implicit?
+	end_implicit   int // Is the document end indicator implicit?
+
+	// The start/end of the document.
+	start_mark, end_mark yaml_mark_t
+}
+
+// The prototype of a read handler.
+//
+// The read handler is called when the parser needs to read more bytes from the
+// source. The handler should write not more than size bytes to the buffer.
+// The number of written bytes should be set to the size_read variable.
+//
+// [in,out]   data        A pointer to an application data specified by
+//                        yaml_parser_set_input().
+// [out]      buffer      The buffer to write the data from the source.
+// [in]       size        The size of the buffer.
+// [out]      size_read   The actual number of bytes read from the source.
+//
+// On success, the handler should return 1.  If the handler failed,
+// the returned value should be 0. On EOF, the handler should set the
+// size_read to 0 and return 1.
+type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
+
+// This structure holds information about a potential simple key.
+type yaml_simple_key_t struct {
+	possible     bool        // Is a simple key possible?
+	required     bool        // Is a simple key required?
+	token_number int         // The number of the token.
+	mark         yaml_mark_t // The position mark.
+}
+
+// The states of the parser.
+type yaml_parser_state_t int
+
+const (
+	yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
+
+	yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE           // Expect the beginning of an implicit document.
+	yaml_PARSE_DOCUMENT_START_STATE                    // Expect DOCUMENT-START.
+	yaml_PARSE_DOCUMENT_CONTENT_STATE                  // Expect the content of a document.
+	yaml_PARSE_DOCUMENT_END_STATE                      // Expect DOCUMENT-END.
+	yaml_PARSE_BLOCK_NODE_STATE                        // Expect a block node.
+	yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
+	yaml_PARSE_FLOW_NODE_STATE                         // Expect a flow node.
+	yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE        // Expect the first entry of a block sequence.
+	yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE              // Expect an entry of a block sequence.
+	yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE         // Expect an entry of an indentless sequence.
+	yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE           // Expect the first key of a block mapping.
+	yaml_PARSE_BLOCK_MAPPING_KEY_STATE                 // Expect a block mapping key.
+	yaml_PARSE_BLOCK_MAPPING_VALUE_STATE               // Expect a block mapping value.
+	yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE         // Expect the first entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE               // Expect an entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE   // Expect a key of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE   // Expect the and of an ordered mapping entry.
+	yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE            // Expect the first key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_KEY_STATE                  // Expect a key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_VALUE_STATE                // Expect a value of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE          // Expect an empty value of a flow mapping.
+	yaml_PARSE_END_STATE                               // Expect nothing.
+)
+
+func (ps yaml_parser_state_t) String() string {
+	switch ps {
+	case yaml_PARSE_STREAM_START_STATE:
+		return "yaml_PARSE_STREAM_START_STATE"
+	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+		return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_START_STATE:
+		return "yaml_PARSE_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+		return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
+	case yaml_PARSE_DOCUMENT_END_STATE:
+		return "yaml_PARSE_DOCUMENT_END_STATE"
+	case yaml_PARSE_BLOCK_NODE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_STATE"
+	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
+	case yaml_PARSE_FLOW_NODE_STATE:
+		return "yaml_PARSE_FLOW_NODE_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
+	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
+	case yaml_PARSE_END_STATE:
+		return "yaml_PARSE_END_STATE"
+	}
+	return "<unknown parser state>"
+}
+
+// This structure holds aliases data.
+type yaml_alias_data_t struct {
+	anchor []byte      // The anchor.
+	index  int         // The node id.
+	mark   yaml_mark_t // The anchor mark.
+}
+
+// The parser structure.
+//
+// All members are internal. Manage the structure using the
+// yaml_parser_ family of functions.
+type yaml_parser_t struct {
+
+	// Error handling
+
+	error yaml_error_type_t // Error type.
+
+	problem string // Error description.
+
+	// The byte about which the problem occurred.
+	problem_offset int
+	problem_value  int
+	problem_mark   yaml_mark_t
+
+	// The error context.
+	context      string
+	context_mark yaml_mark_t
+
+	// Reader stuff
+
+	read_handler yaml_read_handler_t // Read handler.
+
+	input_file io.Reader // File input data.
+	input      []byte    // String input data.
+	input_pos  int
+
+	eof bool // EOF flag
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	unread int // The number of unread characters in the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The input encoding.
+
+	offset int         // The offset of the current position (in bytes).
+	mark   yaml_mark_t // The mark of the current position.
+
+	// Scanner stuff
+
+	stream_start_produced bool // Have we started to scan the input stream?
+	stream_end_produced   bool // Have we reached the end of the input stream?
+
+	flow_level int // The number of unclosed '[' and '{' indicators.
+
+	tokens          []yaml_token_t // The tokens queue.
+	tokens_head     int            // The head of the tokens queue.
+	tokens_parsed   int            // The number of tokens fetched from the queue.
+	token_available bool           // Does the tokens queue contain a token ready for dequeueing.
+
+	indent  int   // The current indentation level.
+	indents []int // The indentation levels stack.
+
+	simple_key_allowed bool                // May a simple key occur at the current position?
+	simple_keys        []yaml_simple_key_t // The stack of simple keys.
+
+	// Parser stuff
+
+	state          yaml_parser_state_t    // The current parser state.
+	states         []yaml_parser_state_t  // The parser states stack.
+	marks          []yaml_mark_t          // The stack of marks.
+	tag_directives []yaml_tag_directive_t // The list of TAG directives.
+
+	// Dumper stuff
+
+	aliases []yaml_alias_data_t // The alias data.
+
+	document *yaml_document_t // The currently parsed document.
+}
+
+// Emitter Definitions
+
+// The prototype of a write handler.
+//
+// The write handler is called when the emitter needs to flush the accumulated
+// characters to the output.  The handler should write @a size bytes of the
+// @a buffer to the output.
+//
+// @param[in,out]   data        A pointer to an application data specified by
+//                              yaml_emitter_set_output().
+// @param[in]       buffer      The buffer with bytes to be written.
+// @param[in]       size        The size of the buffer.
+//
+// @returns On success, the handler should return @c 1.  If the handler failed,
+// the returned value should be @c 0.
+//
+type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
+
+type yaml_emitter_state_t int
+
+// The emitter states.
+const (
+	// Expect STREAM-START.
+	yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
+
+	yaml_EMIT_FIRST_DOCUMENT_START_STATE       // Expect the first DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_START_STATE             // Expect DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_CONTENT_STATE           // Expect the content of a document.
+	yaml_EMIT_DOCUMENT_END_STATE               // Expect DOCUMENT-END.
+	yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE   // Expect the first item of a flow sequence.
+	yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE         // Expect an item of a flow sequence.
+	yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE     // Expect the first key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_KEY_STATE           // Expect a key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE  // Expect a value for a simple key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_VALUE_STATE         // Expect a value of a flow mapping.
+	yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE  // Expect the first item of a block sequence.
+	yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE        // Expect an item of a block sequence.
+	yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE    // Expect the first key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_KEY_STATE          // Expect the key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_VALUE_STATE        // Expect a value of a block mapping.
+	yaml_EMIT_END_STATE                        // Expect nothing.
+)
+
+// The emitter structure.
+//
+// All members are internal.  Manage the structure using the @c yaml_emitter_
+// family of functions.
+type yaml_emitter_t struct {
+
+	// Error handling
+
+	error   yaml_error_type_t // Error type.
+	problem string            // Error description.
+
+	// Writer stuff
+
+	write_handler yaml_write_handler_t // Write handler.
+
+	output_buffer *[]byte   // String output data.
+	output_file   io.Writer // File output data.
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The stream encoding.
+
+	// Emitter stuff
+
+	canonical   bool         // If the output is in the canonical style?
+	best_indent int          // The number of indentation spaces.
+	best_width  int          // The preferred width of the output lines.
+	unicode     bool         // Allow unescaped non-ASCII characters?
+	line_break  yaml_break_t // The preferred line break.
+
+	state  yaml_emitter_state_t   // The current emitter state.
+	states []yaml_emitter_state_t // The stack of states.
+
+	events      []yaml_event_t // The event queue.
+	events_head int            // The head of the event queue.
+
+	indents []int // The stack of indentation levels.
+
+	tag_directives []yaml_tag_directive_t // The list of tag directives.
+
+	indent int // The current indentation level.
+
+	flow_level int // The current flow level.
+
+	root_context       bool // Is it the document root context?
+	sequence_context   bool // Is it a sequence context?
+	mapping_context    bool // Is it a mapping context?
+	simple_key_context bool // Is it a simple mapping key context?
+
+	line       int  // The current line.
+	column     int  // The current column.
+	whitespace bool // If the last character was a whitespace?
+	indention  bool // If the last character was an indentation character (' ', '-', '?', ':')?
+	open_ended bool // If an explicit document end is required?
+
+	// Anchor analysis.
+	anchor_data struct {
+		anchor []byte // The anchor value.
+		alias  bool   // Is it an alias?
+	}
+
+	// Tag analysis.
+	tag_data struct {
+		handle []byte // The tag handle.
+		suffix []byte // The tag suffix.
+	}
+
+	// Scalar analysis.
+	scalar_data struct {
+		value                 []byte              // The scalar value.
+		multiline             bool                // Does the scalar contain line breaks?
+		flow_plain_allowed    bool                // Can the scalar be expessed in the flow plain style?
+		block_plain_allowed   bool                // Can the scalar be expressed in the block plain style?
+		single_quoted_allowed bool                // Can the scalar be expressed in the single quoted style?
+		block_allowed         bool                // Can the scalar be expressed in the literal or folded styles?
+		style                 yaml_scalar_style_t // The output style.
+	}
+
+	// Dumper stuff
+
+	opened bool // If the stream was already opened?
+	closed bool // If the stream was already closed?
+
+	// The information associated with the document nodes.
+	anchors *struct {
+		references int  // The number of references.
+		anchor     int  // The anchor id.
+		serialized bool // If the node has been emitted?
+	}
+
+	last_anchor_id int // The last assigned anchor id.
+
+	document *yaml_document_t // The currently emitted document.
+}
diff --git a/vendor/gopkg.in/yaml.v2/yamlprivateh.go b/vendor/gopkg.in/yaml.v2/yamlprivateh.go
new file mode 100644
index 0000000..8110ce3
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yamlprivateh.go
@@ -0,0 +1,173 @@
+package yaml
+
+const (
+	// The size of the input raw buffer.
+	input_raw_buffer_size = 512
+
+	// The size of the input buffer.
+	// It should be possible to decode the whole raw buffer.
+	input_buffer_size = input_raw_buffer_size * 3
+
+	// The size of the output buffer.
+	output_buffer_size = 128
+
+	// The size of the output raw buffer.
+	// It should be possible to encode the whole output buffer.
+	output_raw_buffer_size = (output_buffer_size*2 + 2)
+
+	// The size of other stacks and queues.
+	initial_stack_size  = 16
+	initial_queue_size  = 16
+	initial_string_size = 16
+)
+
+// Check if the character at the specified position is an alphabetical
+// character, a digit, '_', or '-'.
+func is_alpha(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
+}
+
+// Check if the character at the specified position is a digit.
+func is_digit(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9'
+}
+
+// Get the value of a digit.
+func as_digit(b []byte, i int) int {
+	return int(b[i]) - '0'
+}
+
+// Check if the character at the specified position is a hex-digit.
+func is_hex(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
+}
+
+// Get the value of a hex-digit.
+func as_hex(b []byte, i int) int {
+	bi := b[i]
+	if bi >= 'A' && bi <= 'F' {
+		return int(bi) - 'A' + 10
+	}
+	if bi >= 'a' && bi <= 'f' {
+		return int(bi) - 'a' + 10
+	}
+	return int(bi) - '0'
+}
+
+// Check if the character is ASCII.
+func is_ascii(b []byte, i int) bool {
+	return b[i] <= 0x7F
+}
+
+// Check if the character at the start of the buffer can be printed unescaped.
+func is_printable(b []byte, i int) bool {
+	return ((b[i] == 0x0A) || // . == #x0A
+		(b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
+		(b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
+		(b[i] > 0xC2 && b[i] < 0xED) ||
+		(b[i] == 0xED && b[i+1] < 0xA0) ||
+		(b[i] == 0xEE) ||
+		(b[i] == 0xEF && // #xE000 <= . <= #xFFFD
+			!(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
+			!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
+}
+
+// Check if the character at the specified position is NUL.
+func is_z(b []byte, i int) bool {
+	return b[i] == 0x00
+}
+
+// Check if the beginning of the buffer is a BOM.
+func is_bom(b []byte, i int) bool {
+	return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
+}
+
+// Check if the character at the specified position is space.
+func is_space(b []byte, i int) bool {
+	return b[i] == ' '
+}
+
+// Check if the character at the specified position is tab.
+func is_tab(b []byte, i int) bool {
+	return b[i] == '\t'
+}
+
+// Check if the character at the specified position is blank (space or tab).
+func is_blank(b []byte, i int) bool {
+	//return is_space(b, i) || is_tab(b, i)
+	return b[i] == ' ' || b[i] == '\t'
+}
+
+// Check if the character at the specified position is a line break.
+func is_break(b []byte, i int) bool {
+	return (b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
+}
+
+func is_crlf(b []byte, i int) bool {
+	return b[i] == '\r' && b[i+1] == '\n'
+}
+
+// Check if the character is a line break or NUL.
+func is_breakz(b []byte, i int) bool {
+	//return is_break(b, i) || is_z(b, i)
+	return (        // is_break:
+	b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		// is_z:
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, or NUL.
+func is_spacez(b []byte, i int) bool {
+	//return is_space(b, i) || is_breakz(b, i)
+	return ( // is_space:
+	b[i] == ' ' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, tab, or NUL.
+func is_blankz(b []byte, i int) bool {
+	//return is_blank(b, i) || is_breakz(b, i)
+	return ( // is_blank:
+	b[i] == ' ' || b[i] == '\t' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Determine the width of the character.
+func width(b byte) int {
+	// Don't replace these by a switch without first
+	// confirming that it is being inlined.
+	if b&0x80 == 0x00 {
+		return 1
+	}
+	if b&0xE0 == 0xC0 {
+		return 2
+	}
+	if b&0xF0 == 0xE0 {
+		return 3
+	}
+	if b&0xF8 == 0xF0 {
+		return 4
+	}
+	return 0
+
+}