Vendor in latest storage, image and runtime-tools

Need to pull in the latest containers/storage and containers/image to fix lots of
issues.  Also want to update runtime-tools to take advantage of newer generate
code.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

Closes: #152
Approved by: rhatdan

17 files changed, 4461 insertions, 0 deletions

diff --git a/vendor/github.com/xeipuuv/gojsonschema/LICENSE-APACHE-2.0.txt b/vendor/github.com/xeipuuv/gojsonschema/LICENSE-APACHE-2.0.txt
new file mode 100644
index 000000000..55ede8a42
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/LICENSE-APACHE-2.0.txt
@@ -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,
+      and distribution as defined by Sections 1 through 9 of this document.
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+
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+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      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,
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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
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+      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,
+      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
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+
+   Copyright 2015 xeipuuv
+
+   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
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+   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/github.com/xeipuuv/gojsonschema/README.md b/vendor/github.com/xeipuuv/gojsonschema/README.md
new file mode 100644
index 000000000..e02976bc6
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/README.md
@@ -0,0 +1,294 @@
+[![Build Status](https://travis-ci.org/xeipuuv/gojsonschema.svg)](https://travis-ci.org/xeipuuv/gojsonschema)
+
+# gojsonschema
+
+## Description
+
+An implementation of JSON Schema, based on IETF's draft v4 - Go language
+
+References :
+
+* http://json-schema.org
+* http://json-schema.org/latest/json-schema-core.html
+* http://json-schema.org/latest/json-schema-validation.html
+
+## Installation
+
+```
+go get github.com/xeipuuv/gojsonschema
+```
+
+Dependencies :
+* [github.com/xeipuuv/gojsonpointer](https://github.com/xeipuuv/gojsonpointer)
+* [github.com/xeipuuv/gojsonreference](https://github.com/xeipuuv/gojsonreference)
+* [github.com/stretchr/testify/assert](https://github.com/stretchr/testify#assert-package)
+
+## Usage
+
+### Example
+
+```go
+
+package main
+
+import (
+    "fmt"
+    "github.com/xeipuuv/gojsonschema"
+)
+
+func main() {
+
+    schemaLoader := gojsonschema.NewReferenceLoader("file:///home/me/schema.json")
+    documentLoader := gojsonschema.NewReferenceLoader("file:///home/me/document.json")
+
+    result, err := gojsonschema.Validate(schemaLoader, documentLoader)
+    if err != nil {
+        panic(err.Error())
+    }
+
+    if result.Valid() {
+        fmt.Printf("The document is valid\n")
+    } else {
+        fmt.Printf("The document is not valid. see errors :\n")
+        for _, desc := range result.Errors() {
+            fmt.Printf("- %s\n", desc)
+        }
+    }
+
+}
+
+
+```
+
+#### Loaders
+
+There are various ways to load your JSON data.
+In order to load your schemas and documents,
+first declare an appropriate loader :
+
+* Web / HTTP, using a reference :
+
+```go
+loader := gojsonschema.NewReferenceLoader("http://www.some_host.com/schema.json")
+```
+
+* Local file, using a reference :
+
+```go
+loader := gojsonschema.NewReferenceLoader("file:///home/me/schema.json")
+```
+
+References use the URI scheme, the prefix (file://) and a full path to the file are required.
+
+* JSON strings :
+
+```go
+loader := gojsonschema.NewStringLoader(`{"type": "string"}`)
+```
+
+* Custom Go types :
+
+```go
+m := map[string]interface{}{"type": "string"}
+loader := gojsonschema.NewGoLoader(m)
+```
+
+And
+
+```go
+type Root struct {
+	Users []User `json:"users"`
+}
+
+type User struct {
+	Name string `json:"name"`
+}
+
+...
+
+data := Root{}
+data.Users = append(data.Users, User{"John"})
+data.Users = append(data.Users, User{"Sophia"})
+data.Users = append(data.Users, User{"Bill"})
+
+loader := gojsonschema.NewGoLoader(data)
+```
+
+#### Validation
+
+Once the loaders are set, validation is easy :
+
+```go
+result, err := gojsonschema.Validate(schemaLoader, documentLoader)
+```
+
+Alternatively, you might want to load a schema only once and process to multiple validations :
+
+```go
+schema, err := gojsonschema.NewSchema(schemaLoader)
+...
+result1, err := schema.Validate(documentLoader1)
+...
+result2, err := schema.Validate(documentLoader2)
+...
+// etc ...
+```
+
+To check the result :
+
+```go
+    if result.Valid() {
+    	fmt.Printf("The document is valid\n")
+    } else {
+        fmt.Printf("The document is not valid. see errors :\n")
+        for _, err := range result.Errors() {
+        	// Err implements the ResultError interface
+            fmt.Printf("- %s\n", err)
+        }
+    }
+```
+
+## Working with Errors
+
+The library handles string error codes which you can customize by creating your own gojsonschema.locale and setting it
+```go
+gojsonschema.Locale = YourCustomLocale{}
+```
+
+However, each error contains additional contextual information.
+
+**err.Type()**: *string* Returns the "type" of error that occurred. Note you can also type check. See below
+
+Note: An error of RequiredType has an err.Type() return value of "required"
+
+    "required": RequiredError
+    "invalid_type": InvalidTypeError
+    "number_any_of": NumberAnyOfError
+    "number_one_of": NumberOneOfError
+    "number_all_of": NumberAllOfError
+    "number_not": NumberNotError
+    "missing_dependency": MissingDependencyError
+    "internal": InternalError
+    "enum": EnumError
+    "array_no_additional_items": ArrayNoAdditionalItemsError
+    "array_min_items": ArrayMinItemsError
+    "array_max_items": ArrayMaxItemsError
+    "unique": ItemsMustBeUniqueError
+    "array_min_properties": ArrayMinPropertiesError
+    "array_max_properties": ArrayMaxPropertiesError
+    "additional_property_not_allowed": AdditionalPropertyNotAllowedError
+    "invalid_property_pattern": InvalidPropertyPatternError
+    "string_gte": StringLengthGTEError
+    "string_lte": StringLengthLTEError
+    "pattern": DoesNotMatchPatternError
+    "multiple_of": MultipleOfError
+    "number_gte": NumberGTEError
+    "number_gt": NumberGTError
+    "number_lte": NumberLTEError
+    "number_lt": NumberLTError
+
+**err.Value()**: *interface{}* Returns the value given
+
+**err.Context()**: *gojsonschema.jsonContext* Returns the context. This has a String() method that will print something like this: (root).firstName
+
+**err.Field()**: *string* Returns the fieldname in the format firstName, or for embedded properties, person.firstName. This returns the same as the String() method on *err.Context()* but removes the (root). prefix.
+
+**err.Description()**: *string* The error description. This is based on the locale you are using. See the beginning of this section for overwriting the locale with a custom implementation.
+
+**err.Details()**: *gojsonschema.ErrorDetails* Returns a map[string]interface{} of additional error details specific to the error. For example, GTE errors will have a "min" value, LTE will have a "max" value. See errors.go for a full description of all the error details. Every error always contains a "field" key that holds the value of *err.Field()*
+
+Note in most cases, the err.Details() will be used to generate replacement strings in your locales, and not used directly. These strings follow the text/template format i.e.
+```
+{{.field}} must be greater than or equal to {{.min}}
+```
+
+The library allows you to specify custom template functions, should you require more complex error message handling.
+```go
+gojsonschema.ErrorTemplateFuncs = map[string]interface{}{
+	"allcaps": func(s string) string {
+		return strings.ToUpper(s)
+	},
+}
+```
+
+Given the above definition, you can use the custom function `"allcaps"` in your localization templates:
+```
+{{allcaps .field}} must be greater than or equal to {{.min}}
+```
+
+The above error message would then be rendered with the `field` value in capital letters. For example:
+```
+"PASSWORD must be greater than or equal to 8"
+```
+
+Learn more about what types of template functions you can use in `ErrorTemplateFuncs` by referring to Go's [text/template FuncMap](https://golang.org/pkg/text/template/#FuncMap) type.
+
+## Formats
+JSON Schema allows for optional "format" property to validate instances against well-known formats. gojsonschema ships with all of the formats defined in the spec that you can use like this:
+````json
+{"type": "string", "format": "email"}
+````
+Available formats: date-time, hostname, email, ipv4, ipv6, uri, uri-reference.
+
+For repetitive or more complex formats, you can create custom format checkers and add them to gojsonschema like this:
+
+```go
+// Define the format checker
+type RoleFormatChecker struct {}
+
+// Ensure it meets the gojsonschema.FormatChecker interface
+func (f RoleFormatChecker) IsFormat(input interface{}) bool {
+
+    asString, ok := input.(string)
+    if ok == false {
+        return false
+    }
+
+    return strings.HasPrefix("ROLE_", asString)
+}
+
+// Add it to the library
+gojsonschema.FormatCheckers.Add("role", RoleFormatChecker{})
+````
+
+Now to use in your json schema:
+````json
+{"type": "string", "format": "role"}
+````
+
+Another example would be to check if the provided integer matches an id on database:
+
+JSON schema:
+```json
+{"type": "integer", "format": "ValidUserId"}
+```
+
+```go
+// Define the format checker
+type ValidUserIdFormatChecker struct {}
+
+// Ensure it meets the gojsonschema.FormatChecker interface
+func (f ValidUserIdFormatChecker) IsFormat(input interface{}) bool {
+
+    asFloat64, ok := input.(float64) // Numbers are always float64 here
+    if ok == false {
+        return false
+    }
+
+    // XXX
+    // do the magic on the database looking for the int(asFloat64)
+
+    return true
+}
+
+// Add it to the library
+gojsonschema.FormatCheckers.Add("ValidUserId", ValidUserIdFormatChecker{})
+````
+
+
+
+## Uses
+
+gojsonschema uses the following test suite :
+
+https://github.com/json-schema/JSON-Schema-Test-Suite
diff --git a/vendor/github.com/xeipuuv/gojsonschema/errors.go b/vendor/github.com/xeipuuv/gojsonschema/errors.go
new file mode 100644
index 000000000..d39f01959
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/errors.go
@@ -0,0 +1,283 @@
+package gojsonschema
+
+import (
+	"bytes"
+	"sync"
+	"text/template"
+)
+
+var errorTemplates errorTemplate = errorTemplate{template.New("errors-new"), sync.RWMutex{}}
+
+// template.Template is not thread-safe for writing, so some locking is done
+// sync.RWMutex is used for efficiently locking when new templates are created
+type errorTemplate struct {
+	*template.Template
+	sync.RWMutex
+}
+
+type (
+	// RequiredError. ErrorDetails: property string
+	RequiredError struct {
+		ResultErrorFields
+	}
+
+	// InvalidTypeError. ErrorDetails: expected, given
+	InvalidTypeError struct {
+		ResultErrorFields
+	}
+
+	// NumberAnyOfError. ErrorDetails: -
+	NumberAnyOfError struct {
+		ResultErrorFields
+	}
+
+	// NumberOneOfError. ErrorDetails: -
+	NumberOneOfError struct {
+		ResultErrorFields
+	}
+
+	// NumberAllOfError. ErrorDetails: -
+	NumberAllOfError struct {
+		ResultErrorFields
+	}
+
+	// NumberNotError. ErrorDetails: -
+	NumberNotError struct {
+		ResultErrorFields
+	}
+
+	// MissingDependencyError. ErrorDetails: dependency
+	MissingDependencyError struct {
+		ResultErrorFields
+	}
+
+	// InternalError. ErrorDetails: error
+	InternalError struct {
+		ResultErrorFields
+	}
+
+	// EnumError. ErrorDetails: allowed
+	EnumError struct {
+		ResultErrorFields
+	}
+
+	// ArrayNoAdditionalItemsError. ErrorDetails: -
+	ArrayNoAdditionalItemsError struct {
+		ResultErrorFields
+	}
+
+	// ArrayMinItemsError. ErrorDetails: min
+	ArrayMinItemsError struct {
+		ResultErrorFields
+	}
+
+	// ArrayMaxItemsError. ErrorDetails: max
+	ArrayMaxItemsError struct {
+		ResultErrorFields
+	}
+
+	// ItemsMustBeUniqueError. ErrorDetails: type
+	ItemsMustBeUniqueError struct {
+		ResultErrorFields
+	}
+
+	// ArrayMinPropertiesError. ErrorDetails: min
+	ArrayMinPropertiesError struct {
+		ResultErrorFields
+	}
+
+	// ArrayMaxPropertiesError. ErrorDetails: max
+	ArrayMaxPropertiesError struct {
+		ResultErrorFields
+	}
+
+	// AdditionalPropertyNotAllowedError. ErrorDetails: property
+	AdditionalPropertyNotAllowedError struct {
+		ResultErrorFields
+	}
+
+	// InvalidPropertyPatternError. ErrorDetails: property, pattern
+	InvalidPropertyPatternError struct {
+		ResultErrorFields
+	}
+
+	// StringLengthGTEError. ErrorDetails: min
+	StringLengthGTEError struct {
+		ResultErrorFields
+	}
+
+	// StringLengthLTEError. ErrorDetails: max
+	StringLengthLTEError struct {
+		ResultErrorFields
+	}
+
+	// DoesNotMatchPatternError. ErrorDetails: pattern
+	DoesNotMatchPatternError struct {
+		ResultErrorFields
+	}
+
+	// DoesNotMatchFormatError. ErrorDetails: format
+	DoesNotMatchFormatError struct {
+		ResultErrorFields
+	}
+
+	// MultipleOfError. ErrorDetails: multiple
+	MultipleOfError struct {
+		ResultErrorFields
+	}
+
+	// NumberGTEError. ErrorDetails: min
+	NumberGTEError struct {
+		ResultErrorFields
+	}
+
+	// NumberGTError. ErrorDetails: min
+	NumberGTError struct {
+		ResultErrorFields
+	}
+
+	// NumberLTEError. ErrorDetails: max
+	NumberLTEError struct {
+		ResultErrorFields
+	}
+
+	// NumberLTError. ErrorDetails: max
+	NumberLTError struct {
+		ResultErrorFields
+	}
+)
+
+// newError takes a ResultError type and sets the type, context, description, details, value, and field
+func newError(err ResultError, context *jsonContext, value interface{}, locale locale, details ErrorDetails) {
+	var t string
+	var d string
+	switch err.(type) {
+	case *RequiredError:
+		t = "required"
+		d = locale.Required()
+	case *InvalidTypeError:
+		t = "invalid_type"
+		d = locale.InvalidType()
+	case *NumberAnyOfError:
+		t = "number_any_of"
+		d = locale.NumberAnyOf()
+	case *NumberOneOfError:
+		t = "number_one_of"
+		d = locale.NumberOneOf()
+	case *NumberAllOfError:
+		t = "number_all_of"
+		d = locale.NumberAllOf()
+	case *NumberNotError:
+		t = "number_not"
+		d = locale.NumberNot()
+	case *MissingDependencyError:
+		t = "missing_dependency"
+		d = locale.MissingDependency()
+	case *InternalError:
+		t = "internal"
+		d = locale.Internal()
+	case *EnumError:
+		t = "enum"
+		d = locale.Enum()
+	case *ArrayNoAdditionalItemsError:
+		t = "array_no_additional_items"
+		d = locale.ArrayNoAdditionalItems()
+	case *ArrayMinItemsError:
+		t = "array_min_items"
+		d = locale.ArrayMinItems()
+	case *ArrayMaxItemsError:
+		t = "array_max_items"
+		d = locale.ArrayMaxItems()
+	case *ItemsMustBeUniqueError:
+		t = "unique"
+		d = locale.Unique()
+	case *ArrayMinPropertiesError:
+		t = "array_min_properties"
+		d = locale.ArrayMinProperties()
+	case *ArrayMaxPropertiesError:
+		t = "array_max_properties"
+		d = locale.ArrayMaxProperties()
+	case *AdditionalPropertyNotAllowedError:
+		t = "additional_property_not_allowed"
+		d = locale.AdditionalPropertyNotAllowed()
+	case *InvalidPropertyPatternError:
+		t = "invalid_property_pattern"
+		d = locale.InvalidPropertyPattern()
+	case *StringLengthGTEError:
+		t = "string_gte"
+		d = locale.StringGTE()
+	case *StringLengthLTEError:
+		t = "string_lte"
+		d = locale.StringLTE()
+	case *DoesNotMatchPatternError:
+		t = "pattern"
+		d = locale.DoesNotMatchPattern()
+	case *DoesNotMatchFormatError:
+		t = "format"
+		d = locale.DoesNotMatchFormat()
+	case *MultipleOfError:
+		t = "multiple_of"
+		d = locale.MultipleOf()
+	case *NumberGTEError:
+		t = "number_gte"
+		d = locale.NumberGTE()
+	case *NumberGTError:
+		t = "number_gt"
+		d = locale.NumberGT()
+	case *NumberLTEError:
+		t = "number_lte"
+		d = locale.NumberLTE()
+	case *NumberLTError:
+		t = "number_lt"
+		d = locale.NumberLT()
+	}
+
+	err.SetType(t)
+	err.SetContext(context)
+	err.SetValue(value)
+	err.SetDetails(details)
+	details["field"] = err.Field()
+
+	if _, exists := details["context"]; !exists && context != nil {
+		details["context"] = context.String()
+	}
+
+	err.SetDescription(formatErrorDescription(d, details))
+}
+
+// formatErrorDescription takes a string in the default text/template
+// format and converts it to a string with replacements. The fields come
+// from the ErrorDetails struct and vary for each type of error.
+func formatErrorDescription(s string, details ErrorDetails) string {
+
+	var tpl *template.Template
+	var descrAsBuffer bytes.Buffer
+	var err error
+
+	errorTemplates.RLock()
+	tpl = errorTemplates.Lookup(s)
+	errorTemplates.RUnlock()
+
+	if tpl == nil {
+		errorTemplates.Lock()
+		tpl = errorTemplates.New(s)
+
+		if ErrorTemplateFuncs != nil {
+			tpl.Funcs(ErrorTemplateFuncs)
+		}
+
+		tpl, err = tpl.Parse(s)
+		errorTemplates.Unlock()
+
+		if err != nil {
+			return err.Error()
+		}
+	}
+
+	err = tpl.Execute(&descrAsBuffer, details)
+	if err != nil {
+		return err.Error()
+	}
+
+	return descrAsBuffer.String()
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/format_checkers.go b/vendor/github.com/xeipuuv/gojsonschema/format_checkers.go
new file mode 100644
index 000000000..c6a07923b
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/format_checkers.go
@@ -0,0 +1,250 @@
+package gojsonschema
+
+import (
+	"net"
+	"net/url"
+	"regexp"
+	"strings"
+	"time"
+)
+
+type (
+	// FormatChecker is the interface all formatters added to FormatCheckerChain must implement
+	FormatChecker interface {
+		IsFormat(input interface{}) bool
+	}
+
+	// FormatCheckerChain holds the formatters
+	FormatCheckerChain struct {
+		formatters map[string]FormatChecker
+	}
+
+	// EmailFormatter verifies email address formats
+	EmailFormatChecker struct{}
+
+	// IPV4FormatChecker verifies IP addresses in the ipv4 format
+	IPV4FormatChecker struct{}
+
+	// IPV6FormatChecker verifies IP addresses in the ipv6 format
+	IPV6FormatChecker struct{}
+
+	// DateTimeFormatChecker verifies date/time formats per RFC3339 5.6
+	//
+	// Valid formats:
+	// 		Partial Time: HH:MM:SS
+	//		Full Date: YYYY-MM-DD
+	// 		Full Time: HH:MM:SSZ-07:00
+	//		Date Time: YYYY-MM-DDTHH:MM:SSZ-0700
+	//
+	// 	Where
+	//		YYYY = 4DIGIT year
+	//		MM = 2DIGIT month ; 01-12
+	//		DD = 2DIGIT day-month ; 01-28, 01-29, 01-30, 01-31 based on month/year
+	//		HH = 2DIGIT hour ; 00-23
+	//		MM = 2DIGIT ; 00-59
+	//		SS = 2DIGIT ; 00-58, 00-60 based on leap second rules
+	//		T = Literal
+	//		Z = Literal
+	//
+	//	Note: Nanoseconds are also suported in all formats
+	//
+	// http://tools.ietf.org/html/rfc3339#section-5.6
+	DateTimeFormatChecker struct{}
+
+	// URIFormatChecker validates a URI with a valid Scheme per RFC3986
+	URIFormatChecker struct{}
+
+	// URIReferenceFormatChecker validates a URI or relative-reference per RFC3986
+	URIReferenceFormatChecker struct{}
+
+	// HostnameFormatChecker validates a hostname is in the correct format
+	HostnameFormatChecker struct{}
+
+	// UUIDFormatChecker validates a UUID is in the correct format
+	UUIDFormatChecker struct{}
+
+	// RegexFormatChecker validates a regex is in the correct format
+	RegexFormatChecker struct{}
+)
+
+var (
+	// Formatters holds the valid formatters, and is a public variable
+	// so library users can add custom formatters
+	FormatCheckers = FormatCheckerChain{
+		formatters: map[string]FormatChecker{
+			"date-time": 	 DateTimeFormatChecker{},
+			"hostname":  	 HostnameFormatChecker{},
+			"email":     	 EmailFormatChecker{},
+			"ipv4":      	 IPV4FormatChecker{},
+			"ipv6":      	 IPV6FormatChecker{},
+			"uri":       	 URIFormatChecker{},
+			"uri-reference": URIReferenceFormatChecker{},
+			"uuid":      	 UUIDFormatChecker{},
+			"regex":     	 RegexFormatChecker{},
+		},
+	}
+
+	// Regex credit: https://github.com/asaskevich/govalidator
+	rxEmail = regexp.MustCompile("^(((([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}])))\\.?$")
+
+	// Regex credit: https://www.socketloop.com/tutorials/golang-validate-hostname
+	rxHostname = regexp.MustCompile(`^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])(\.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9]))*$`)
+
+	rxUUID = regexp.MustCompile("^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$")
+)
+
+// Add adds a FormatChecker to the FormatCheckerChain
+// The name used will be the value used for the format key in your json schema
+func (c *FormatCheckerChain) Add(name string, f FormatChecker) *FormatCheckerChain {
+	c.formatters[name] = f
+
+	return c
+}
+
+// Remove deletes a FormatChecker from the FormatCheckerChain (if it exists)
+func (c *FormatCheckerChain) Remove(name string) *FormatCheckerChain {
+	delete(c.formatters, name)
+
+	return c
+}
+
+// Has checks to see if the FormatCheckerChain holds a FormatChecker with the given name
+func (c *FormatCheckerChain) Has(name string) bool {
+	_, ok := c.formatters[name]
+
+	return ok
+}
+
+// IsFormat will check an input against a FormatChecker with the given name
+// to see if it is the correct format
+func (c *FormatCheckerChain) IsFormat(name string, input interface{}) bool {
+	f, ok := c.formatters[name]
+
+	if !ok {
+		return false
+	}
+
+	return f.IsFormat(input)
+}
+
+func (f EmailFormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	return rxEmail.MatchString(asString)
+}
+
+// Credit: https://github.com/asaskevich/govalidator
+func (f IPV4FormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	ip := net.ParseIP(asString)
+	return ip != nil && strings.Contains(asString, ".")
+}
+
+// Credit: https://github.com/asaskevich/govalidator
+func (f IPV6FormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	ip := net.ParseIP(asString)
+	return ip != nil && strings.Contains(asString, ":")
+}
+
+func (f DateTimeFormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	formats := []string{
+		"15:04:05",
+		"15:04:05Z07:00",
+		"2006-01-02",
+		time.RFC3339,
+		time.RFC3339Nano,
+	}
+
+	for _, format := range formats {
+		if _, err := time.Parse(format, asString); err == nil {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (f URIFormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	u, err := url.Parse(asString)
+	if err != nil || u.Scheme == "" {
+		return false
+	}
+
+	return true
+}
+
+func (f URIReferenceFormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	_, err := url.Parse(asString)
+	return err == nil
+}
+
+func (f HostnameFormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	return rxHostname.MatchString(asString) && len(asString) < 256
+}
+
+func (f UUIDFormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	return rxUUID.MatchString(asString)
+}
+
+// IsFormat implements FormatChecker interface.
+func (f RegexFormatChecker) IsFormat(input interface{}) bool {
+
+	asString, ok := input.(string)
+	if ok == false {
+		return false
+	}
+
+	if asString == "" {
+		return true
+	}
+	_, err := regexp.Compile(asString)
+	if err != nil {
+		return false
+	}
+	return true
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/internalLog.go b/vendor/github.com/xeipuuv/gojsonschema/internalLog.go
new file mode 100644
index 000000000..4ef7a8d03
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/internalLog.go
@@ -0,0 +1,37 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Very simple log wrapper.
+//					Used for debugging/testing purposes.
+//
+// created          01-01-2015
+
+package gojsonschema
+
+import (
+	"log"
+)
+
+const internalLogEnabled = false
+
+func internalLog(format string, v ...interface{}) {
+	log.Printf(format, v...)
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/jsonContext.go b/vendor/github.com/xeipuuv/gojsonschema/jsonContext.go
new file mode 100644
index 000000000..fcc8d9d6f
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/jsonContext.go
@@ -0,0 +1,72 @@
+// Copyright 2013 MongoDB, Inc.
+//
+// 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.
+
+// author           tolsen
+// author-github    https://github.com/tolsen
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Implements a persistent (immutable w/ shared structure) singly-linked list of strings for the purpose of storing a json context
+//
+// created          04-09-2013
+
+package gojsonschema
+
+import "bytes"
+
+// jsonContext implements a persistent linked-list of strings
+type jsonContext struct {
+	head string
+	tail *jsonContext
+}
+
+func newJsonContext(head string, tail *jsonContext) *jsonContext {
+	return &jsonContext{head, tail}
+}
+
+// String displays the context in reverse.
+// This plays well with the data structure's persistent nature with
+// Cons and a json document's tree structure.
+func (c *jsonContext) String(del ...string) string {
+	byteArr := make([]byte, 0, c.stringLen())
+	buf := bytes.NewBuffer(byteArr)
+	c.writeStringToBuffer(buf, del)
+
+	return buf.String()
+}
+
+func (c *jsonContext) stringLen() int {
+	length := 0
+	if c.tail != nil {
+		length = c.tail.stringLen() + 1 // add 1 for "."
+	}
+
+	length += len(c.head)
+	return length
+}
+
+func (c *jsonContext) writeStringToBuffer(buf *bytes.Buffer, del []string) {
+	if c.tail != nil {
+		c.tail.writeStringToBuffer(buf, del)
+
+		if len(del) > 0 {
+			buf.WriteString(del[0])
+		} else {
+			buf.WriteString(".")
+		}
+	}
+
+	buf.WriteString(c.head)
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/jsonLoader.go b/vendor/github.com/xeipuuv/gojsonschema/jsonLoader.go
new file mode 100644
index 000000000..a77a81e40
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/jsonLoader.go
@@ -0,0 +1,341 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description		Different strategies to load JSON files.
+// 					Includes References (file and HTTP), JSON strings and Go types.
+//
+// created          01-02-2015
+
+package gojsonschema
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+
+
+	"github.com/xeipuuv/gojsonreference"
+)
+
+var osFS = osFileSystem(os.Open)
+
+// JSON loader interface
+
+type JSONLoader interface {
+	JsonSource() interface{}
+	LoadJSON() (interface{}, error)
+	JsonReference() (gojsonreference.JsonReference, error)
+	LoaderFactory() JSONLoaderFactory
+}
+
+type JSONLoaderFactory interface {
+	New(source string) JSONLoader
+}
+
+type DefaultJSONLoaderFactory struct {
+}
+
+type FileSystemJSONLoaderFactory struct {
+	fs http.FileSystem
+}
+
+func (d DefaultJSONLoaderFactory) New(source string) JSONLoader {
+	return &jsonReferenceLoader{
+		fs:     osFS,
+		source: source,
+	}
+}
+
+func (f FileSystemJSONLoaderFactory) New(source string) JSONLoader {
+	return &jsonReferenceLoader{
+		fs:     f.fs,
+		source: source,
+	}
+}
+
+// osFileSystem is a functional wrapper for os.Open that implements http.FileSystem.
+type osFileSystem func(string) (*os.File, error)
+
+func (o osFileSystem) Open(name string) (http.File, error) {
+	return o(name)
+}
+
+// JSON Reference loader
+// references are used to load JSONs from files and HTTP
+
+type jsonReferenceLoader struct {
+	fs     http.FileSystem
+	source string
+}
+
+func (l *jsonReferenceLoader) JsonSource() interface{} {
+	return l.source
+}
+
+func (l *jsonReferenceLoader) JsonReference() (gojsonreference.JsonReference, error) {
+	return gojsonreference.NewJsonReference(l.JsonSource().(string))
+}
+
+func (l *jsonReferenceLoader) LoaderFactory() JSONLoaderFactory {
+	return &FileSystemJSONLoaderFactory{
+		fs: l.fs,
+	}
+}
+
+// NewReferenceLoader returns a JSON reference loader using the given source and the local OS file system.
+func NewReferenceLoader(source string) *jsonReferenceLoader {
+	return &jsonReferenceLoader{
+		fs:     osFS,
+		source: source,
+	}
+}
+
+// NewReferenceLoaderFileSystem returns a JSON reference loader using the given source and file system.
+func NewReferenceLoaderFileSystem(source string, fs http.FileSystem) *jsonReferenceLoader {
+	return &jsonReferenceLoader{
+		fs:     fs,
+		source: source,
+	}
+}
+
+func (l *jsonReferenceLoader) LoadJSON() (interface{}, error) {
+
+	var err error
+
+	reference, err := gojsonreference.NewJsonReference(l.JsonSource().(string))
+	if err != nil {
+		return nil, err
+	}
+
+	refToUrl := reference
+	refToUrl.GetUrl().Fragment = ""
+
+	var document interface{}
+
+	if reference.HasFileScheme {
+
+		filename := strings.Replace(refToUrl.GetUrl().Path, "file://", "", -1)
+		if runtime.GOOS == "windows" {
+			// on Windows, a file URL may have an extra leading slash, use slashes
+			// instead of backslashes, and have spaces escaped
+			if strings.HasPrefix(filename, "/") {
+				filename = filename[1:]
+			}
+			filename = filepath.FromSlash(filename)
+		}
+
+		document, err = l.loadFromFile(filename)
+		if err != nil {
+			return nil, err
+		}
+
+	} else {
+
+		document, err = l.loadFromHTTP(refToUrl.String())
+		if err != nil {
+			return nil, err
+		}
+
+	}
+
+	return document, nil
+
+}
+
+func (l *jsonReferenceLoader) loadFromHTTP(address string) (interface{}, error) {
+
+	resp, err := http.Get(address)
+	if err != nil {
+		return nil, err
+	}
+
+	// must return HTTP Status 200 OK
+	if resp.StatusCode != http.StatusOK {
+		return nil, errors.New(formatErrorDescription(Locale.HttpBadStatus(), ErrorDetails{"status": resp.Status}))
+	}
+
+	bodyBuff, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	return decodeJsonUsingNumber(bytes.NewReader(bodyBuff))
+
+}
+
+func (l *jsonReferenceLoader) loadFromFile(path string) (interface{}, error) {
+	f, err := l.fs.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	bodyBuff, err := ioutil.ReadAll(f)
+	if err != nil {
+		return nil, err
+	}
+
+	return decodeJsonUsingNumber(bytes.NewReader(bodyBuff))
+
+}
+
+// JSON string loader
+
+type jsonStringLoader struct {
+	source string
+}
+
+func (l *jsonStringLoader) JsonSource() interface{} {
+	return l.source
+}
+
+func (l *jsonStringLoader) JsonReference() (gojsonreference.JsonReference, error) {
+	return gojsonreference.NewJsonReference("#")
+}
+
+func (l *jsonStringLoader) LoaderFactory() JSONLoaderFactory {
+	return &DefaultJSONLoaderFactory{}
+}
+
+func NewStringLoader(source string) *jsonStringLoader {
+	return &jsonStringLoader{source: source}
+}
+
+func (l *jsonStringLoader) LoadJSON() (interface{}, error) {
+
+	return decodeJsonUsingNumber(strings.NewReader(l.JsonSource().(string)))
+
+}
+
+// JSON bytes loader
+
+type jsonBytesLoader struct {
+	source []byte
+}
+
+func (l *jsonBytesLoader) JsonSource() interface{} {
+	return l.source
+}
+
+func (l *jsonBytesLoader) JsonReference() (gojsonreference.JsonReference, error) {
+	return gojsonreference.NewJsonReference("#")
+}
+
+func (l *jsonBytesLoader) LoaderFactory() JSONLoaderFactory {
+	return &DefaultJSONLoaderFactory{}
+}
+
+func NewBytesLoader(source []byte) *jsonBytesLoader {
+	return &jsonBytesLoader{source: source}
+}
+
+func (l *jsonBytesLoader) LoadJSON() (interface{}, error) {
+	return decodeJsonUsingNumber(bytes.NewReader(l.JsonSource().([]byte)))
+}
+
+// JSON Go (types) loader
+// used to load JSONs from the code as maps, interface{}, structs ...
+
+type jsonGoLoader struct {
+	source interface{}
+}
+
+func (l *jsonGoLoader) JsonSource() interface{} {
+	return l.source
+}
+
+func (l *jsonGoLoader) JsonReference() (gojsonreference.JsonReference, error) {
+	return gojsonreference.NewJsonReference("#")
+}
+
+func (l *jsonGoLoader) LoaderFactory() JSONLoaderFactory {
+	return &DefaultJSONLoaderFactory{}
+}
+
+func NewGoLoader(source interface{}) *jsonGoLoader {
+	return &jsonGoLoader{source: source}
+}
+
+func (l *jsonGoLoader) LoadJSON() (interface{}, error) {
+
+	// convert it to a compliant JSON first to avoid types "mismatches"
+
+	jsonBytes, err := json.Marshal(l.JsonSource())
+	if err != nil {
+		return nil, err
+	}
+
+	return decodeJsonUsingNumber(bytes.NewReader(jsonBytes))
+
+}
+
+type jsonIOLoader struct {
+	buf *bytes.Buffer
+}
+
+func NewReaderLoader(source io.Reader) (*jsonIOLoader, io.Reader) {
+	buf := &bytes.Buffer{}
+	return &jsonIOLoader{buf: buf}, io.TeeReader(source, buf)
+}
+
+func NewWriterLoader(source io.Writer) (*jsonIOLoader, io.Writer) {
+	buf := &bytes.Buffer{}
+	return &jsonIOLoader{buf: buf}, io.MultiWriter(source, buf)
+}
+
+func (l *jsonIOLoader) JsonSource() interface{} {
+	return l.buf.String()
+}
+
+func (l *jsonIOLoader) LoadJSON() (interface{}, error) {
+	return decodeJsonUsingNumber(l.buf)
+}
+
+func (l *jsonIOLoader) JsonReference() (gojsonreference.JsonReference, error) {
+	return gojsonreference.NewJsonReference("#")
+}
+
+func (l *jsonIOLoader) LoaderFactory() JSONLoaderFactory {
+	return &DefaultJSONLoaderFactory{}
+}
+
+func decodeJsonUsingNumber(r io.Reader) (interface{}, error) {
+
+	var document interface{}
+
+	decoder := json.NewDecoder(r)
+	decoder.UseNumber()
+
+	err := decoder.Decode(&document)
+	if err != nil {
+		return nil, err
+	}
+	
+	return document, nil
+
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/locales.go b/vendor/github.com/xeipuuv/gojsonschema/locales.go
new file mode 100644
index 000000000..ee41484a7
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/locales.go
@@ -0,0 +1,286 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Contains const string and messages.
+//
+// created          01-01-2015
+
+package gojsonschema
+
+type (
+	// locale is an interface for defining custom error strings
+	locale interface {
+		Required() string
+		InvalidType() string
+		NumberAnyOf() string
+		NumberOneOf() string
+		NumberAllOf() string
+		NumberNot() string
+		MissingDependency() string
+		Internal() string
+		Enum() string
+		ArrayNotEnoughItems() string
+		ArrayNoAdditionalItems() string
+		ArrayMinItems() string
+		ArrayMaxItems() string
+		Unique() string
+		ArrayMinProperties() string
+		ArrayMaxProperties() string
+		AdditionalPropertyNotAllowed() string
+		InvalidPropertyPattern() string
+		StringGTE() string
+		StringLTE() string
+		DoesNotMatchPattern() string
+		DoesNotMatchFormat() string
+		MultipleOf() string
+		NumberGTE() string
+		NumberGT() string
+		NumberLTE() string
+		NumberLT() string
+
+		// Schema validations
+		RegexPattern() string
+		GreaterThanZero() string
+		MustBeOfA() string
+		MustBeOfAn() string
+		CannotBeUsedWithout() string
+		CannotBeGT() string
+		MustBeOfType() string
+		MustBeValidRegex() string
+		MustBeValidFormat() string
+		MustBeGTEZero() string
+		KeyCannotBeGreaterThan() string
+		KeyItemsMustBeOfType() string
+		KeyItemsMustBeUnique() string
+		ReferenceMustBeCanonical() string
+		NotAValidType() string
+		Duplicated() string
+		HttpBadStatus() string
+		ParseError() string
+
+		// ErrorFormat
+		ErrorFormat() string
+	}
+
+	// DefaultLocale is the default locale for this package
+	DefaultLocale struct{}
+)
+
+func (l DefaultLocale) Required() string {
+	return `{{.property}} is required`
+}
+
+func (l DefaultLocale) InvalidType() string {
+	return `Invalid type. Expected: {{.expected}}, given: {{.given}}`
+}
+
+func (l DefaultLocale) NumberAnyOf() string {
+	return `Must validate at least one schema (anyOf)`
+}
+
+func (l DefaultLocale) NumberOneOf() string {
+	return `Must validate one and only one schema (oneOf)`
+}
+
+func (l DefaultLocale) NumberAllOf() string {
+	return `Must validate all the schemas (allOf)`
+}
+
+func (l DefaultLocale) NumberNot() string {
+	return `Must not validate the schema (not)`
+}
+
+func (l DefaultLocale) MissingDependency() string {
+	return `Has a dependency on {{.dependency}}`
+}
+
+func (l DefaultLocale) Internal() string {
+	return `Internal Error {{.error}}`
+}
+
+func (l DefaultLocale) Enum() string {
+	return `{{.field}} must be one of the following: {{.allowed}}`
+}
+
+func (l DefaultLocale) ArrayNoAdditionalItems() string {
+	return `No additional items allowed on array`
+}
+
+func (l DefaultLocale) ArrayNotEnoughItems() string {
+	return `Not enough items on array to match positional list of schema`
+}
+
+func (l DefaultLocale) ArrayMinItems() string {
+	return `Array must have at least {{.min}} items`
+}
+
+func (l DefaultLocale) ArrayMaxItems() string {
+	return `Array must have at most {{.max}} items`
+}
+
+func (l DefaultLocale) Unique() string {
+	return `{{.type}} items must be unique`
+}
+
+func (l DefaultLocale) ArrayMinProperties() string {
+	return `Must have at least {{.min}} properties`
+}
+
+func (l DefaultLocale) ArrayMaxProperties() string {
+	return `Must have at most {{.max}} properties`
+}
+
+func (l DefaultLocale) AdditionalPropertyNotAllowed() string {
+	return `Additional property {{.property}} is not allowed`
+}
+
+func (l DefaultLocale) InvalidPropertyPattern() string {
+	return `Property "{{.property}}" does not match pattern {{.pattern}}`
+}
+
+func (l DefaultLocale) StringGTE() string {
+	return `String length must be greater than or equal to {{.min}}`
+}
+
+func (l DefaultLocale) StringLTE() string {
+	return `String length must be less than or equal to {{.max}}`
+}
+
+func (l DefaultLocale) DoesNotMatchPattern() string {
+	return `Does not match pattern '{{.pattern}}'`
+}
+
+func (l DefaultLocale) DoesNotMatchFormat() string {
+	return `Does not match format '{{.format}}'`
+}
+
+func (l DefaultLocale) MultipleOf() string {
+	return `Must be a multiple of {{.multiple}}`
+}
+
+func (l DefaultLocale) NumberGTE() string {
+	return `Must be greater than or equal to {{.min}}`
+}
+
+func (l DefaultLocale) NumberGT() string {
+	return `Must be greater than {{.min}}`
+}
+
+func (l DefaultLocale) NumberLTE() string {
+	return `Must be less than or equal to {{.max}}`
+}
+
+func (l DefaultLocale) NumberLT() string {
+	return `Must be less than {{.max}}`
+}
+
+// Schema validators
+func (l DefaultLocale) RegexPattern() string {
+	return `Invalid regex pattern '{{.pattern}}'`
+}
+
+func (l DefaultLocale) GreaterThanZero() string {
+	return `{{.number}} must be strictly greater than 0`
+}
+
+func (l DefaultLocale) MustBeOfA() string {
+	return `{{.x}} must be of a {{.y}}`
+}
+
+func (l DefaultLocale) MustBeOfAn() string {
+	return `{{.x}} must be of an {{.y}}`
+}
+
+func (l DefaultLocale) CannotBeUsedWithout() string {
+	return `{{.x}} cannot be used without {{.y}}`
+}
+
+func (l DefaultLocale) CannotBeGT() string {
+	return `{{.x}} cannot be greater than {{.y}}`
+}
+
+func (l DefaultLocale) MustBeOfType() string {
+	return `{{.key}} must be of type {{.type}}`
+}
+
+func (l DefaultLocale) MustBeValidRegex() string {
+	return `{{.key}} must be a valid regex`
+}
+
+func (l DefaultLocale) MustBeValidFormat() string {
+	return `{{.key}} must be a valid format {{.given}}`
+}
+
+func (l DefaultLocale) MustBeGTEZero() string {
+	return `{{.key}} must be greater than or equal to 0`
+}
+
+func (l DefaultLocale) KeyCannotBeGreaterThan() string {
+	return `{{.key}} cannot be greater than {{.y}}`
+}
+
+func (l DefaultLocale) KeyItemsMustBeOfType() string {
+	return `{{.key}} items must be {{.type}}`
+}
+
+func (l DefaultLocale) KeyItemsMustBeUnique() string {
+	return `{{.key}} items must be unique`
+}
+
+func (l DefaultLocale) ReferenceMustBeCanonical() string {
+	return `Reference {{.reference}} must be canonical`
+}
+
+func (l DefaultLocale) NotAValidType() string {
+	return `has a primitive type that is NOT VALID -- given: {{.given}} Expected valid values are:{{.expected}}`
+}
+
+func (l DefaultLocale) Duplicated() string {
+	return `{{.type}} type is duplicated`
+}
+
+func (l DefaultLocale) HttpBadStatus() string {
+	return `Could not read schema from HTTP, response status is {{.status}}`
+}
+
+// Replacement options: field, description, context, value
+func (l DefaultLocale) ErrorFormat() string {
+	return `{{.field}}: {{.description}}`
+}
+
+//Parse error
+func (l DefaultLocale) ParseError() string {
+	return `Expected: %expected%, given: Invalid JSON`
+}
+
+const (
+	STRING_NUMBER                     = "number"
+	STRING_ARRAY_OF_STRINGS           = "array of strings"
+	STRING_ARRAY_OF_SCHEMAS           = "array of schemas"
+	STRING_SCHEMA                     = "schema"
+	STRING_SCHEMA_OR_ARRAY_OF_STRINGS = "schema or array of strings"
+	STRING_PROPERTIES                 = "properties"
+	STRING_DEPENDENCY                 = "dependency"
+	STRING_PROPERTY                   = "property"
+	STRING_UNDEFINED                  = "undefined"
+	STRING_CONTEXT_ROOT               = "(root)"
+	STRING_ROOT_SCHEMA_PROPERTY       = "(root)"
+)
diff --git a/vendor/github.com/xeipuuv/gojsonschema/result.go b/vendor/github.com/xeipuuv/gojsonschema/result.go
new file mode 100644
index 000000000..6ad56ae86
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/result.go
@@ -0,0 +1,172 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Result and ResultError implementations.
+//
+// created          01-01-2015
+
+package gojsonschema
+
+import (
+	"fmt"
+	"strings"
+)
+
+type (
+	// ErrorDetails is a map of details specific to each error.
+	// While the values will vary, every error will contain a "field" value
+	ErrorDetails map[string]interface{}
+
+	// ResultError is the interface that library errors must implement
+	ResultError interface {
+		Field() string
+		SetType(string)
+		Type() string
+		SetContext(*jsonContext)
+		Context() *jsonContext
+		SetDescription(string)
+		Description() string
+		SetValue(interface{})
+		Value() interface{}
+		SetDetails(ErrorDetails)
+		Details() ErrorDetails
+		String() string
+	}
+
+	// ResultErrorFields holds the fields for each ResultError implementation.
+	// ResultErrorFields implements the ResultError interface, so custom errors
+	// can be defined by just embedding this type
+	ResultErrorFields struct {
+		errorType   string       // A string with the type of error (i.e. invalid_type)
+		context     *jsonContext // Tree like notation of the part that failed the validation. ex (root).a.b ...
+		description string       // A human readable error message
+		value       interface{}  // Value given by the JSON file that is the source of the error
+		details     ErrorDetails
+	}
+
+	Result struct {
+		errors []ResultError
+		// Scores how well the validation matched. Useful in generating
+		// better error messages for anyOf and oneOf.
+		score int
+	}
+)
+
+// Field outputs the field name without the root context
+// i.e. firstName or person.firstName instead of (root).firstName or (root).person.firstName
+func (v *ResultErrorFields) Field() string {
+	if p, ok := v.Details()["property"]; ok {
+		if str, isString := p.(string); isString {
+			return str
+		}
+	}
+
+	return strings.TrimPrefix(v.context.String(), STRING_ROOT_SCHEMA_PROPERTY+".")
+}
+
+func (v *ResultErrorFields) SetType(errorType string) {
+	v.errorType = errorType
+}
+
+func (v *ResultErrorFields) Type() string {
+	return v.errorType
+}
+
+func (v *ResultErrorFields) SetContext(context *jsonContext) {
+	v.context = context
+}
+
+func (v *ResultErrorFields) Context() *jsonContext {
+	return v.context
+}
+
+func (v *ResultErrorFields) SetDescription(description string) {
+	v.description = description
+}
+
+func (v *ResultErrorFields) Description() string {
+	return v.description
+}
+
+func (v *ResultErrorFields) SetValue(value interface{}) {
+	v.value = value
+}
+
+func (v *ResultErrorFields) Value() interface{} {
+	return v.value
+}
+
+func (v *ResultErrorFields) SetDetails(details ErrorDetails) {
+	v.details = details
+}
+
+func (v *ResultErrorFields) Details() ErrorDetails {
+	return v.details
+}
+
+func (v ResultErrorFields) String() string {
+	// as a fallback, the value is displayed go style
+	valueString := fmt.Sprintf("%v", v.value)
+
+	// marshal the go value value to json
+	if v.value == nil {
+		valueString = TYPE_NULL
+	} else {
+		if vs, err := marshalToJsonString(v.value); err == nil {
+			if vs == nil {
+				valueString = TYPE_NULL
+			} else {
+				valueString = *vs
+			}
+		}
+	}
+
+	return formatErrorDescription(Locale.ErrorFormat(), ErrorDetails{
+		"context":     v.context.String(),
+		"description": v.description,
+		"value":       valueString,
+		"field":       v.Field(),
+	})
+}
+
+func (v *Result) Valid() bool {
+	return len(v.errors) == 0
+}
+
+func (v *Result) Errors() []ResultError {
+	return v.errors
+}
+
+func (v *Result) addError(err ResultError, context *jsonContext, value interface{}, details ErrorDetails) {
+	newError(err, context, value, Locale, details)
+	v.errors = append(v.errors, err)
+	v.score -= 2 // results in a net -1 when added to the +1 we get at the end of the validation function
+}
+
+// Used to copy errors from a sub-schema to the main one
+func (v *Result) mergeErrors(otherResult *Result) {
+	v.errors = append(v.errors, otherResult.Errors()...)
+	v.score += otherResult.score
+}
+
+func (v *Result) incrementScore() {
+	v.score++
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/schema.go b/vendor/github.com/xeipuuv/gojsonschema/schema.go
new file mode 100644
index 000000000..2cac71e9b
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/schema.go
@@ -0,0 +1,928 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Defines Schema, the main entry to every subSchema.
+//                  Contains the parsing logic and error checking.
+//
+// created          26-02-2013
+
+package gojsonschema
+
+import (
+	//	"encoding/json"
+	"errors"
+	"reflect"
+	"regexp"
+	"text/template"
+
+	"github.com/xeipuuv/gojsonreference"
+)
+
+var (
+	// Locale is the default locale to use
+	// Library users can overwrite with their own implementation
+	Locale locale = DefaultLocale{}
+
+	// ErrorTemplateFuncs allows you to define custom template funcs for use in localization.
+	ErrorTemplateFuncs template.FuncMap
+)
+
+func NewSchema(l JSONLoader) (*Schema, error) {
+	ref, err := l.JsonReference()
+	if err != nil {
+		return nil, err
+	}
+
+	d := Schema{}
+	d.pool = newSchemaPool(l.LoaderFactory())
+	d.documentReference = ref
+	d.referencePool = newSchemaReferencePool()
+
+	var doc interface{}
+	if ref.String() != "" {
+		// Get document from schema pool
+		spd, err := d.pool.GetDocument(d.documentReference)
+		if err != nil {
+			return nil, err
+		}
+		doc = spd.Document
+	} else {
+		// Load JSON directly
+		doc, err = l.LoadJSON()
+		if err != nil {
+			return nil, err
+		}
+		d.pool.SetStandaloneDocument(doc)
+	}
+
+	err = d.parse(doc)
+	if err != nil {
+		return nil, err
+	}
+
+	return &d, nil
+}
+
+type Schema struct {
+	documentReference gojsonreference.JsonReference
+	rootSchema        *subSchema
+	pool              *schemaPool
+	referencePool     *schemaReferencePool
+}
+
+func (d *Schema) parse(document interface{}) error {
+	d.rootSchema = &subSchema{property: STRING_ROOT_SCHEMA_PROPERTY}
+	return d.parseSchema(document, d.rootSchema)
+}
+
+func (d *Schema) SetRootSchemaName(name string) {
+	d.rootSchema.property = name
+}
+
+// Parses a subSchema
+//
+// Pretty long function ( sorry :) )... but pretty straight forward, repetitive and boring
+// Not much magic involved here, most of the job is to validate the key names and their values,
+// then the values are copied into subSchema struct
+//
+func (d *Schema) parseSchema(documentNode interface{}, currentSchema *subSchema) error {
+
+	if !isKind(documentNode, reflect.Map) {
+		return errors.New(formatErrorDescription(
+			Locale.ParseError(),
+			ErrorDetails{
+				"expected": STRING_SCHEMA,
+			},
+		))
+	}
+
+	m := documentNode.(map[string]interface{})
+
+	if currentSchema == d.rootSchema {
+		currentSchema.ref = &d.documentReference
+	}
+
+	// $subSchema
+	if existsMapKey(m, KEY_SCHEMA) {
+		if !isKind(m[KEY_SCHEMA], reflect.String) {
+			return errors.New(formatErrorDescription(
+				Locale.InvalidType(),
+				ErrorDetails{
+					"expected": TYPE_STRING,
+					"given":    KEY_SCHEMA,
+				},
+			))
+		}
+		schemaRef := m[KEY_SCHEMA].(string)
+		schemaReference, err := gojsonreference.NewJsonReference(schemaRef)
+		currentSchema.subSchema = &schemaReference
+		if err != nil {
+			return err
+		}
+	}
+
+	// $ref
+	if existsMapKey(m, KEY_REF) && !isKind(m[KEY_REF], reflect.String) {
+		return errors.New(formatErrorDescription(
+			Locale.InvalidType(),
+			ErrorDetails{
+				"expected": TYPE_STRING,
+				"given":    KEY_REF,
+			},
+		))
+	}
+	if k, ok := m[KEY_REF].(string); ok {
+
+		jsonReference, err := gojsonreference.NewJsonReference(k)
+		if err != nil {
+			return err
+		}
+
+		if jsonReference.HasFullUrl {
+			currentSchema.ref = &jsonReference
+		} else {
+			inheritedReference, err := currentSchema.ref.Inherits(jsonReference)
+			if err != nil {
+				return err
+			}
+
+			currentSchema.ref = inheritedReference
+		}
+
+		if sch, ok := d.referencePool.Get(currentSchema.ref.String() + k); ok {
+			currentSchema.refSchema = sch
+
+		} else {
+			err := d.parseReference(documentNode, currentSchema, k)
+			if err != nil {
+				return err
+			}
+
+			return nil
+		}
+	}
+
+	// definitions
+	if existsMapKey(m, KEY_DEFINITIONS) {
+		if isKind(m[KEY_DEFINITIONS], reflect.Map) {
+			currentSchema.definitions = make(map[string]*subSchema)
+			for dk, dv := range m[KEY_DEFINITIONS].(map[string]interface{}) {
+				if isKind(dv, reflect.Map) {
+					newSchema := &subSchema{property: KEY_DEFINITIONS, parent: currentSchema, ref: currentSchema.ref}
+					currentSchema.definitions[dk] = newSchema
+					err := d.parseSchema(dv, newSchema)
+					if err != nil {
+						return errors.New(err.Error())
+					}
+				} else {
+					return errors.New(formatErrorDescription(
+						Locale.InvalidType(),
+						ErrorDetails{
+							"expected": STRING_ARRAY_OF_SCHEMAS,
+							"given":    KEY_DEFINITIONS,
+						},
+					))
+				}
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.InvalidType(),
+				ErrorDetails{
+					"expected": STRING_ARRAY_OF_SCHEMAS,
+					"given":    KEY_DEFINITIONS,
+				},
+			))
+		}
+
+	}
+
+	// id
+	if existsMapKey(m, KEY_ID) && !isKind(m[KEY_ID], reflect.String) {
+		return errors.New(formatErrorDescription(
+			Locale.InvalidType(),
+			ErrorDetails{
+				"expected": TYPE_STRING,
+				"given":    KEY_ID,
+			},
+		))
+	}
+	if k, ok := m[KEY_ID].(string); ok {
+		currentSchema.id = &k
+	}
+
+	// title
+	if existsMapKey(m, KEY_TITLE) && !isKind(m[KEY_TITLE], reflect.String) {
+		return errors.New(formatErrorDescription(
+			Locale.InvalidType(),
+			ErrorDetails{
+				"expected": TYPE_STRING,
+				"given":    KEY_TITLE,
+			},
+		))
+	}
+	if k, ok := m[KEY_TITLE].(string); ok {
+		currentSchema.title = &k
+	}
+
+	// description
+	if existsMapKey(m, KEY_DESCRIPTION) && !isKind(m[KEY_DESCRIPTION], reflect.String) {
+		return errors.New(formatErrorDescription(
+			Locale.InvalidType(),
+			ErrorDetails{
+				"expected": TYPE_STRING,
+				"given":    KEY_DESCRIPTION,
+			},
+		))
+	}
+	if k, ok := m[KEY_DESCRIPTION].(string); ok {
+		currentSchema.description = &k
+	}
+
+	// type
+	if existsMapKey(m, KEY_TYPE) {
+		if isKind(m[KEY_TYPE], reflect.String) {
+			if k, ok := m[KEY_TYPE].(string); ok {
+				err := currentSchema.types.Add(k)
+				if err != nil {
+					return err
+				}
+			}
+		} else {
+			if isKind(m[KEY_TYPE], reflect.Slice) {
+				arrayOfTypes := m[KEY_TYPE].([]interface{})
+				for _, typeInArray := range arrayOfTypes {
+					if reflect.ValueOf(typeInArray).Kind() != reflect.String {
+						return errors.New(formatErrorDescription(
+							Locale.InvalidType(),
+							ErrorDetails{
+								"expected": TYPE_STRING + "/" + STRING_ARRAY_OF_STRINGS,
+								"given":    KEY_TYPE,
+							},
+						))
+					} else {
+						currentSchema.types.Add(typeInArray.(string))
+					}
+				}
+
+			} else {
+				return errors.New(formatErrorDescription(
+					Locale.InvalidType(),
+					ErrorDetails{
+						"expected": TYPE_STRING + "/" + STRING_ARRAY_OF_STRINGS,
+						"given":    KEY_TYPE,
+					},
+				))
+			}
+		}
+	}
+
+	// properties
+	if existsMapKey(m, KEY_PROPERTIES) {
+		err := d.parseProperties(m[KEY_PROPERTIES], currentSchema)
+		if err != nil {
+			return err
+		}
+	}
+
+	// additionalProperties
+	if existsMapKey(m, KEY_ADDITIONAL_PROPERTIES) {
+		if isKind(m[KEY_ADDITIONAL_PROPERTIES], reflect.Bool) {
+			currentSchema.additionalProperties = m[KEY_ADDITIONAL_PROPERTIES].(bool)
+		} else if isKind(m[KEY_ADDITIONAL_PROPERTIES], reflect.Map) {
+			newSchema := &subSchema{property: KEY_ADDITIONAL_PROPERTIES, parent: currentSchema, ref: currentSchema.ref}
+			currentSchema.additionalProperties = newSchema
+			err := d.parseSchema(m[KEY_ADDITIONAL_PROPERTIES], newSchema)
+			if err != nil {
+				return errors.New(err.Error())
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.InvalidType(),
+				ErrorDetails{
+					"expected": TYPE_BOOLEAN + "/" + STRING_SCHEMA,
+					"given":    KEY_ADDITIONAL_PROPERTIES,
+				},
+			))
+		}
+	}
+
+	// patternProperties
+	if existsMapKey(m, KEY_PATTERN_PROPERTIES) {
+		if isKind(m[KEY_PATTERN_PROPERTIES], reflect.Map) {
+			patternPropertiesMap := m[KEY_PATTERN_PROPERTIES].(map[string]interface{})
+			if len(patternPropertiesMap) > 0 {
+				currentSchema.patternProperties = make(map[string]*subSchema)
+				for k, v := range patternPropertiesMap {
+					_, err := regexp.MatchString(k, "")
+					if err != nil {
+						return errors.New(formatErrorDescription(
+							Locale.RegexPattern(),
+							ErrorDetails{"pattern": k},
+						))
+					}
+					newSchema := &subSchema{property: k, parent: currentSchema, ref: currentSchema.ref}
+					err = d.parseSchema(v, newSchema)
+					if err != nil {
+						return errors.New(err.Error())
+					}
+					currentSchema.patternProperties[k] = newSchema
+				}
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.InvalidType(),
+				ErrorDetails{
+					"expected": STRING_SCHEMA,
+					"given":    KEY_PATTERN_PROPERTIES,
+				},
+			))
+		}
+	}
+
+	// dependencies
+	if existsMapKey(m, KEY_DEPENDENCIES) {
+		err := d.parseDependencies(m[KEY_DEPENDENCIES], currentSchema)
+		if err != nil {
+			return err
+		}
+	}
+
+	// items
+	if existsMapKey(m, KEY_ITEMS) {
+		if isKind(m[KEY_ITEMS], reflect.Slice) {
+			for _, itemElement := range m[KEY_ITEMS].([]interface{}) {
+				if isKind(itemElement, reflect.Map) {
+					newSchema := &subSchema{parent: currentSchema, property: KEY_ITEMS}
+					newSchema.ref = currentSchema.ref
+					currentSchema.AddItemsChild(newSchema)
+					err := d.parseSchema(itemElement, newSchema)
+					if err != nil {
+						return err
+					}
+				} else {
+					return errors.New(formatErrorDescription(
+						Locale.InvalidType(),
+						ErrorDetails{
+							"expected": STRING_SCHEMA + "/" + STRING_ARRAY_OF_SCHEMAS,
+							"given":    KEY_ITEMS,
+						},
+					))
+				}
+				currentSchema.itemsChildrenIsSingleSchema = false
+			}
+		} else if isKind(m[KEY_ITEMS], reflect.Map) {
+			newSchema := &subSchema{parent: currentSchema, property: KEY_ITEMS}
+			newSchema.ref = currentSchema.ref
+			currentSchema.AddItemsChild(newSchema)
+			err := d.parseSchema(m[KEY_ITEMS], newSchema)
+			if err != nil {
+				return err
+			}
+			currentSchema.itemsChildrenIsSingleSchema = true
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.InvalidType(),
+				ErrorDetails{
+					"expected": STRING_SCHEMA + "/" + STRING_ARRAY_OF_SCHEMAS,
+					"given":    KEY_ITEMS,
+				},
+			))
+		}
+	}
+
+	// additionalItems
+	if existsMapKey(m, KEY_ADDITIONAL_ITEMS) {
+		if isKind(m[KEY_ADDITIONAL_ITEMS], reflect.Bool) {
+			currentSchema.additionalItems = m[KEY_ADDITIONAL_ITEMS].(bool)
+		} else if isKind(m[KEY_ADDITIONAL_ITEMS], reflect.Map) {
+			newSchema := &subSchema{property: KEY_ADDITIONAL_ITEMS, parent: currentSchema, ref: currentSchema.ref}
+			currentSchema.additionalItems = newSchema
+			err := d.parseSchema(m[KEY_ADDITIONAL_ITEMS], newSchema)
+			if err != nil {
+				return errors.New(err.Error())
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.InvalidType(),
+				ErrorDetails{
+					"expected": TYPE_BOOLEAN + "/" + STRING_SCHEMA,
+					"given":    KEY_ADDITIONAL_ITEMS,
+				},
+			))
+		}
+	}
+
+	// validation : number / integer
+
+	if existsMapKey(m, KEY_MULTIPLE_OF) {
+		multipleOfValue := mustBeNumber(m[KEY_MULTIPLE_OF])
+		if multipleOfValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.InvalidType(),
+				ErrorDetails{
+					"expected": STRING_NUMBER,
+					"given":    KEY_MULTIPLE_OF,
+				},
+			))
+		}
+		if *multipleOfValue <= 0 {
+			return errors.New(formatErrorDescription(
+				Locale.GreaterThanZero(),
+				ErrorDetails{"number": KEY_MULTIPLE_OF},
+			))
+		}
+		currentSchema.multipleOf = multipleOfValue
+	}
+
+	if existsMapKey(m, KEY_MINIMUM) {
+		minimumValue := mustBeNumber(m[KEY_MINIMUM])
+		if minimumValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfA(),
+				ErrorDetails{"x": KEY_MINIMUM, "y": STRING_NUMBER},
+			))
+		}
+		currentSchema.minimum = minimumValue
+	}
+
+	if existsMapKey(m, KEY_EXCLUSIVE_MINIMUM) {
+		if isKind(m[KEY_EXCLUSIVE_MINIMUM], reflect.Bool) {
+			if currentSchema.minimum == nil {
+				return errors.New(formatErrorDescription(
+					Locale.CannotBeUsedWithout(),
+					ErrorDetails{"x": KEY_EXCLUSIVE_MINIMUM, "y": KEY_MINIMUM},
+				))
+			}
+			exclusiveMinimumValue := m[KEY_EXCLUSIVE_MINIMUM].(bool)
+			currentSchema.exclusiveMinimum = exclusiveMinimumValue
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfA(),
+				ErrorDetails{"x": KEY_EXCLUSIVE_MINIMUM, "y": TYPE_BOOLEAN},
+			))
+		}
+	}
+
+	if existsMapKey(m, KEY_MAXIMUM) {
+		maximumValue := mustBeNumber(m[KEY_MAXIMUM])
+		if maximumValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfA(),
+				ErrorDetails{"x": KEY_MAXIMUM, "y": STRING_NUMBER},
+			))
+		}
+		currentSchema.maximum = maximumValue
+	}
+
+	if existsMapKey(m, KEY_EXCLUSIVE_MAXIMUM) {
+		if isKind(m[KEY_EXCLUSIVE_MAXIMUM], reflect.Bool) {
+			if currentSchema.maximum == nil {
+				return errors.New(formatErrorDescription(
+					Locale.CannotBeUsedWithout(),
+					ErrorDetails{"x": KEY_EXCLUSIVE_MAXIMUM, "y": KEY_MAXIMUM},
+				))
+			}
+			exclusiveMaximumValue := m[KEY_EXCLUSIVE_MAXIMUM].(bool)
+			currentSchema.exclusiveMaximum = exclusiveMaximumValue
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfA(),
+				ErrorDetails{"x": KEY_EXCLUSIVE_MAXIMUM, "y": STRING_NUMBER},
+			))
+		}
+	}
+
+	if currentSchema.minimum != nil && currentSchema.maximum != nil {
+		if *currentSchema.minimum > *currentSchema.maximum {
+			return errors.New(formatErrorDescription(
+				Locale.CannotBeGT(),
+				ErrorDetails{"x": KEY_MINIMUM, "y": KEY_MAXIMUM},
+			))
+		}
+	}
+
+	// validation : string
+
+	if existsMapKey(m, KEY_MIN_LENGTH) {
+		minLengthIntegerValue := mustBeInteger(m[KEY_MIN_LENGTH])
+		if minLengthIntegerValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_MIN_LENGTH, "y": TYPE_INTEGER},
+			))
+		}
+		if *minLengthIntegerValue < 0 {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeGTEZero(),
+				ErrorDetails{"key": KEY_MIN_LENGTH},
+			))
+		}
+		currentSchema.minLength = minLengthIntegerValue
+	}
+
+	if existsMapKey(m, KEY_MAX_LENGTH) {
+		maxLengthIntegerValue := mustBeInteger(m[KEY_MAX_LENGTH])
+		if maxLengthIntegerValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_MAX_LENGTH, "y": TYPE_INTEGER},
+			))
+		}
+		if *maxLengthIntegerValue < 0 {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeGTEZero(),
+				ErrorDetails{"key": KEY_MAX_LENGTH},
+			))
+		}
+		currentSchema.maxLength = maxLengthIntegerValue
+	}
+
+	if currentSchema.minLength != nil && currentSchema.maxLength != nil {
+		if *currentSchema.minLength > *currentSchema.maxLength {
+			return errors.New(formatErrorDescription(
+				Locale.CannotBeGT(),
+				ErrorDetails{"x": KEY_MIN_LENGTH, "y": KEY_MAX_LENGTH},
+			))
+		}
+	}
+
+	if existsMapKey(m, KEY_PATTERN) {
+		if isKind(m[KEY_PATTERN], reflect.String) {
+			regexpObject, err := regexp.Compile(m[KEY_PATTERN].(string))
+			if err != nil {
+				return errors.New(formatErrorDescription(
+					Locale.MustBeValidRegex(),
+					ErrorDetails{"key": KEY_PATTERN},
+				))
+			}
+			currentSchema.pattern = regexpObject
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfA(),
+				ErrorDetails{"x": KEY_PATTERN, "y": TYPE_STRING},
+			))
+		}
+	}
+
+	if existsMapKey(m, KEY_FORMAT) {
+		formatString, ok := m[KEY_FORMAT].(string)
+		if ok && FormatCheckers.Has(formatString) {
+			currentSchema.format = formatString
+		}
+	}
+
+	// validation : object
+
+	if existsMapKey(m, KEY_MIN_PROPERTIES) {
+		minPropertiesIntegerValue := mustBeInteger(m[KEY_MIN_PROPERTIES])
+		if minPropertiesIntegerValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_MIN_PROPERTIES, "y": TYPE_INTEGER},
+			))
+		}
+		if *minPropertiesIntegerValue < 0 {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeGTEZero(),
+				ErrorDetails{"key": KEY_MIN_PROPERTIES},
+			))
+		}
+		currentSchema.minProperties = minPropertiesIntegerValue
+	}
+
+	if existsMapKey(m, KEY_MAX_PROPERTIES) {
+		maxPropertiesIntegerValue := mustBeInteger(m[KEY_MAX_PROPERTIES])
+		if maxPropertiesIntegerValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_MAX_PROPERTIES, "y": TYPE_INTEGER},
+			))
+		}
+		if *maxPropertiesIntegerValue < 0 {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeGTEZero(),
+				ErrorDetails{"key": KEY_MAX_PROPERTIES},
+			))
+		}
+		currentSchema.maxProperties = maxPropertiesIntegerValue
+	}
+
+	if currentSchema.minProperties != nil && currentSchema.maxProperties != nil {
+		if *currentSchema.minProperties > *currentSchema.maxProperties {
+			return errors.New(formatErrorDescription(
+				Locale.KeyCannotBeGreaterThan(),
+				ErrorDetails{"key": KEY_MIN_PROPERTIES, "y": KEY_MAX_PROPERTIES},
+			))
+		}
+	}
+
+	if existsMapKey(m, KEY_REQUIRED) {
+		if isKind(m[KEY_REQUIRED], reflect.Slice) {
+			requiredValues := m[KEY_REQUIRED].([]interface{})
+			for _, requiredValue := range requiredValues {
+				if isKind(requiredValue, reflect.String) {
+					err := currentSchema.AddRequired(requiredValue.(string))
+					if err != nil {
+						return err
+					}
+				} else {
+					return errors.New(formatErrorDescription(
+						Locale.KeyItemsMustBeOfType(),
+						ErrorDetails{"key": KEY_REQUIRED, "type": TYPE_STRING},
+					))
+				}
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_REQUIRED, "y": TYPE_ARRAY},
+			))
+		}
+	}
+
+	// validation : array
+
+	if existsMapKey(m, KEY_MIN_ITEMS) {
+		minItemsIntegerValue := mustBeInteger(m[KEY_MIN_ITEMS])
+		if minItemsIntegerValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_MIN_ITEMS, "y": TYPE_INTEGER},
+			))
+		}
+		if *minItemsIntegerValue < 0 {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeGTEZero(),
+				ErrorDetails{"key": KEY_MIN_ITEMS},
+			))
+		}
+		currentSchema.minItems = minItemsIntegerValue
+	}
+
+	if existsMapKey(m, KEY_MAX_ITEMS) {
+		maxItemsIntegerValue := mustBeInteger(m[KEY_MAX_ITEMS])
+		if maxItemsIntegerValue == nil {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_MAX_ITEMS, "y": TYPE_INTEGER},
+			))
+		}
+		if *maxItemsIntegerValue < 0 {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeGTEZero(),
+				ErrorDetails{"key": KEY_MAX_ITEMS},
+			))
+		}
+		currentSchema.maxItems = maxItemsIntegerValue
+	}
+
+	if existsMapKey(m, KEY_UNIQUE_ITEMS) {
+		if isKind(m[KEY_UNIQUE_ITEMS], reflect.Bool) {
+			currentSchema.uniqueItems = m[KEY_UNIQUE_ITEMS].(bool)
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfA(),
+				ErrorDetails{"x": KEY_UNIQUE_ITEMS, "y": TYPE_BOOLEAN},
+			))
+		}
+	}
+
+	// validation : all
+
+	if existsMapKey(m, KEY_ENUM) {
+		if isKind(m[KEY_ENUM], reflect.Slice) {
+			for _, v := range m[KEY_ENUM].([]interface{}) {
+				err := currentSchema.AddEnum(v)
+				if err != nil {
+					return err
+				}
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_ENUM, "y": TYPE_ARRAY},
+			))
+		}
+	}
+
+	// validation : subSchema
+
+	if existsMapKey(m, KEY_ONE_OF) {
+		if isKind(m[KEY_ONE_OF], reflect.Slice) {
+			for _, v := range m[KEY_ONE_OF].([]interface{}) {
+				newSchema := &subSchema{property: KEY_ONE_OF, parent: currentSchema, ref: currentSchema.ref}
+				currentSchema.AddOneOf(newSchema)
+				err := d.parseSchema(v, newSchema)
+				if err != nil {
+					return err
+				}
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_ONE_OF, "y": TYPE_ARRAY},
+			))
+		}
+	}
+
+	if existsMapKey(m, KEY_ANY_OF) {
+		if isKind(m[KEY_ANY_OF], reflect.Slice) {
+			for _, v := range m[KEY_ANY_OF].([]interface{}) {
+				newSchema := &subSchema{property: KEY_ANY_OF, parent: currentSchema, ref: currentSchema.ref}
+				currentSchema.AddAnyOf(newSchema)
+				err := d.parseSchema(v, newSchema)
+				if err != nil {
+					return err
+				}
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_ANY_OF, "y": TYPE_ARRAY},
+			))
+		}
+	}
+
+	if existsMapKey(m, KEY_ALL_OF) {
+		if isKind(m[KEY_ALL_OF], reflect.Slice) {
+			for _, v := range m[KEY_ALL_OF].([]interface{}) {
+				newSchema := &subSchema{property: KEY_ALL_OF, parent: currentSchema, ref: currentSchema.ref}
+				currentSchema.AddAllOf(newSchema)
+				err := d.parseSchema(v, newSchema)
+				if err != nil {
+					return err
+				}
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_ANY_OF, "y": TYPE_ARRAY},
+			))
+		}
+	}
+
+	if existsMapKey(m, KEY_NOT) {
+		if isKind(m[KEY_NOT], reflect.Map) {
+			newSchema := &subSchema{property: KEY_NOT, parent: currentSchema, ref: currentSchema.ref}
+			currentSchema.SetNot(newSchema)
+			err := d.parseSchema(m[KEY_NOT], newSchema)
+			if err != nil {
+				return err
+			}
+		} else {
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfAn(),
+				ErrorDetails{"x": KEY_NOT, "y": TYPE_OBJECT},
+			))
+		}
+	}
+
+	return nil
+}
+
+func (d *Schema) parseReference(documentNode interface{}, currentSchema *subSchema, reference string) error {
+	var refdDocumentNode interface{}
+	jsonPointer := currentSchema.ref.GetPointer()
+	standaloneDocument := d.pool.GetStandaloneDocument()
+
+	if standaloneDocument != nil {
+
+		var err error
+		refdDocumentNode, _, err = jsonPointer.Get(standaloneDocument)
+		if err != nil {
+			return err
+		}
+
+	} else {
+		dsp, err := d.pool.GetDocument(*currentSchema.ref)
+		if err != nil {
+			return err
+		}
+
+		refdDocumentNode, _, err = jsonPointer.Get(dsp.Document)
+		if err != nil {
+			return err
+		}
+
+	}
+
+	if !isKind(refdDocumentNode, reflect.Map) {
+		return errors.New(formatErrorDescription(
+			Locale.MustBeOfType(),
+			ErrorDetails{"key": STRING_SCHEMA, "type": TYPE_OBJECT},
+		))
+	}
+
+	// returns the loaded referenced subSchema for the caller to update its current subSchema
+	newSchemaDocument := refdDocumentNode.(map[string]interface{})
+	newSchema := &subSchema{property: KEY_REF, parent: currentSchema, ref: currentSchema.ref}
+	d.referencePool.Add(currentSchema.ref.String()+reference, newSchema)
+
+	err := d.parseSchema(newSchemaDocument, newSchema)
+	if err != nil {
+		return err
+	}
+
+	currentSchema.refSchema = newSchema
+
+	return nil
+
+}
+
+func (d *Schema) parseProperties(documentNode interface{}, currentSchema *subSchema) error {
+
+	if !isKind(documentNode, reflect.Map) {
+		return errors.New(formatErrorDescription(
+			Locale.MustBeOfType(),
+			ErrorDetails{"key": STRING_PROPERTIES, "type": TYPE_OBJECT},
+		))
+	}
+
+	m := documentNode.(map[string]interface{})
+	for k := range m {
+		schemaProperty := k
+		newSchema := &subSchema{property: schemaProperty, parent: currentSchema, ref: currentSchema.ref}
+		currentSchema.AddPropertiesChild(newSchema)
+		err := d.parseSchema(m[k], newSchema)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (d *Schema) parseDependencies(documentNode interface{}, currentSchema *subSchema) error {
+
+	if !isKind(documentNode, reflect.Map) {
+		return errors.New(formatErrorDescription(
+			Locale.MustBeOfType(),
+			ErrorDetails{"key": KEY_DEPENDENCIES, "type": TYPE_OBJECT},
+		))
+	}
+
+	m := documentNode.(map[string]interface{})
+	currentSchema.dependencies = make(map[string]interface{})
+
+	for k := range m {
+		switch reflect.ValueOf(m[k]).Kind() {
+
+		case reflect.Slice:
+			values := m[k].([]interface{})
+			var valuesToRegister []string
+
+			for _, value := range values {
+				if !isKind(value, reflect.String) {
+					return errors.New(formatErrorDescription(
+						Locale.MustBeOfType(),
+						ErrorDetails{
+							"key":  STRING_DEPENDENCY,
+							"type": STRING_SCHEMA_OR_ARRAY_OF_STRINGS,
+						},
+					))
+				} else {
+					valuesToRegister = append(valuesToRegister, value.(string))
+				}
+				currentSchema.dependencies[k] = valuesToRegister
+			}
+
+		case reflect.Map:
+			depSchema := &subSchema{property: k, parent: currentSchema, ref: currentSchema.ref}
+			err := d.parseSchema(m[k], depSchema)
+			if err != nil {
+				return err
+			}
+			currentSchema.dependencies[k] = depSchema
+
+		default:
+			return errors.New(formatErrorDescription(
+				Locale.MustBeOfType(),
+				ErrorDetails{
+					"key":  STRING_DEPENDENCY,
+					"type": STRING_SCHEMA_OR_ARRAY_OF_STRINGS,
+				},
+			))
+		}
+
+	}
+
+	return nil
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/schemaPool.go b/vendor/github.com/xeipuuv/gojsonschema/schemaPool.go
new file mode 100644
index 000000000..f2ad641af
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/schemaPool.go
@@ -0,0 +1,109 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description		Defines resources pooling.
+//                  Eases referencing and avoids downloading the same resource twice.
+//
+// created          26-02-2013
+
+package gojsonschema
+
+import (
+	"errors"
+
+	"github.com/xeipuuv/gojsonreference"
+)
+
+type schemaPoolDocument struct {
+	Document interface{}
+}
+
+type schemaPool struct {
+	schemaPoolDocuments map[string]*schemaPoolDocument
+	standaloneDocument  interface{}
+	jsonLoaderFactory   JSONLoaderFactory
+}
+
+func newSchemaPool(f JSONLoaderFactory) *schemaPool {
+
+	p := &schemaPool{}
+	p.schemaPoolDocuments = make(map[string]*schemaPoolDocument)
+	p.standaloneDocument = nil
+	p.jsonLoaderFactory = f
+
+	return p
+}
+
+func (p *schemaPool) SetStandaloneDocument(document interface{}) {
+	p.standaloneDocument = document
+}
+
+func (p *schemaPool) GetStandaloneDocument() (document interface{}) {
+	return p.standaloneDocument
+}
+
+func (p *schemaPool) GetDocument(reference gojsonreference.JsonReference) (*schemaPoolDocument, error) {
+
+	if internalLogEnabled {
+		internalLog("Get Document ( %s )", reference.String())
+	}
+
+	var err error
+
+	// It is not possible to load anything that is not canonical...
+	if !reference.IsCanonical() {
+		return nil, errors.New(formatErrorDescription(
+			Locale.ReferenceMustBeCanonical(),
+			ErrorDetails{"reference": reference},
+		))
+	}
+
+	refToUrl := reference
+	refToUrl.GetUrl().Fragment = ""
+
+	var spd *schemaPoolDocument
+
+	// Try to find the requested document in the pool
+	for k := range p.schemaPoolDocuments {
+		if k == refToUrl.String() {
+			spd = p.schemaPoolDocuments[k]
+		}
+	}
+
+	if spd != nil {
+		if internalLogEnabled {
+			internalLog(" From pool")
+		}
+		return spd, nil
+	}
+
+	jsonReferenceLoader := p.jsonLoaderFactory.New(reference.String())
+	document, err := jsonReferenceLoader.LoadJSON()
+	if err != nil {
+		return nil, err
+	}
+
+	spd = &schemaPoolDocument{Document: document}
+	// add the document to the pool for potential later use
+	p.schemaPoolDocuments[refToUrl.String()] = spd
+
+	return spd, nil
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/schemaReferencePool.go b/vendor/github.com/xeipuuv/gojsonschema/schemaReferencePool.go
new file mode 100644
index 000000000..294e36a73
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/schemaReferencePool.go
@@ -0,0 +1,67 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Pool of referenced schemas.
+//
+// created          25-06-2013
+
+package gojsonschema
+
+import (
+	"fmt"
+)
+
+type schemaReferencePool struct {
+	documents map[string]*subSchema
+}
+
+func newSchemaReferencePool() *schemaReferencePool {
+
+	p := &schemaReferencePool{}
+	p.documents = make(map[string]*subSchema)
+
+	return p
+}
+
+func (p *schemaReferencePool) Get(ref string) (r *subSchema, o bool) {
+
+	if internalLogEnabled {
+		internalLog(fmt.Sprintf("Schema Reference ( %s )", ref))
+	}
+
+	if sch, ok := p.documents[ref]; ok {
+		if internalLogEnabled {
+			internalLog(fmt.Sprintf(" From pool"))
+		}
+		return sch, true
+	}
+
+	return nil, false
+}
+
+func (p *schemaReferencePool) Add(ref string, sch *subSchema) {
+
+	if internalLogEnabled {
+		internalLog(fmt.Sprintf("Add Schema Reference %s to pool", ref))
+	}
+
+	p.documents[ref] = sch
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/schemaType.go b/vendor/github.com/xeipuuv/gojsonschema/schemaType.go
new file mode 100644
index 000000000..36b447a29
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/schemaType.go
@@ -0,0 +1,83 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Helper structure to handle schema types, and the combination of them.
+//
+// created          28-02-2013
+
+package gojsonschema
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+)
+
+type jsonSchemaType struct {
+	types []string
+}
+
+// Is the schema typed ? that is containing at least one type
+// When not typed, the schema does not need any type validation
+func (t *jsonSchemaType) IsTyped() bool {
+	return len(t.types) > 0
+}
+
+func (t *jsonSchemaType) Add(etype string) error {
+
+	if !isStringInSlice(JSON_TYPES, etype) {
+		return errors.New(formatErrorDescription(Locale.NotAValidType(), ErrorDetails{"given": "/" + etype + "/", "expected": JSON_TYPES}))
+	}
+
+	if t.Contains(etype) {
+		return errors.New(formatErrorDescription(Locale.Duplicated(), ErrorDetails{"type": etype}))
+	}
+
+	t.types = append(t.types, etype)
+
+	return nil
+}
+
+func (t *jsonSchemaType) Contains(etype string) bool {
+
+	for _, v := range t.types {
+		if v == etype {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (t *jsonSchemaType) String() string {
+
+	if len(t.types) == 0 {
+		return STRING_UNDEFINED // should never happen
+	}
+
+	// Displayed as a list [type1,type2,...]
+	if len(t.types) > 1 {
+		return fmt.Sprintf("[%s]", strings.Join(t.types, ","))
+	}
+
+	// Only one type: name only
+	return t.types[0]
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/subSchema.go b/vendor/github.com/xeipuuv/gojsonschema/subSchema.go
new file mode 100644
index 000000000..9ddbb5fc1
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/subSchema.go
@@ -0,0 +1,227 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Defines the structure of a sub-subSchema.
+//                  A sub-subSchema can contain other sub-schemas.
+//
+// created          27-02-2013
+
+package gojsonschema
+
+import (
+	"errors"
+	"regexp"
+	"strings"
+
+	"github.com/xeipuuv/gojsonreference"
+)
+
+const (
+	KEY_SCHEMA                = "$subSchema"
+	KEY_ID                    = "$id"
+	KEY_REF                   = "$ref"
+	KEY_TITLE                 = "title"
+	KEY_DESCRIPTION           = "description"
+	KEY_TYPE                  = "type"
+	KEY_ITEMS                 = "items"
+	KEY_ADDITIONAL_ITEMS      = "additionalItems"
+	KEY_PROPERTIES            = "properties"
+	KEY_PATTERN_PROPERTIES    = "patternProperties"
+	KEY_ADDITIONAL_PROPERTIES = "additionalProperties"
+	KEY_DEFINITIONS           = "definitions"
+	KEY_MULTIPLE_OF           = "multipleOf"
+	KEY_MINIMUM               = "minimum"
+	KEY_MAXIMUM               = "maximum"
+	KEY_EXCLUSIVE_MINIMUM     = "exclusiveMinimum"
+	KEY_EXCLUSIVE_MAXIMUM     = "exclusiveMaximum"
+	KEY_MIN_LENGTH            = "minLength"
+	KEY_MAX_LENGTH            = "maxLength"
+	KEY_PATTERN               = "pattern"
+	KEY_FORMAT                = "format"
+	KEY_MIN_PROPERTIES        = "minProperties"
+	KEY_MAX_PROPERTIES        = "maxProperties"
+	KEY_DEPENDENCIES          = "dependencies"
+	KEY_REQUIRED              = "required"
+	KEY_MIN_ITEMS             = "minItems"
+	KEY_MAX_ITEMS             = "maxItems"
+	KEY_UNIQUE_ITEMS          = "uniqueItems"
+	KEY_ENUM                  = "enum"
+	KEY_ONE_OF                = "oneOf"
+	KEY_ANY_OF                = "anyOf"
+	KEY_ALL_OF                = "allOf"
+	KEY_NOT                   = "not"
+)
+
+type subSchema struct {
+
+	// basic subSchema meta properties
+	id          *string
+	title       *string
+	description *string
+
+	property string
+
+	// Types associated with the subSchema
+	types jsonSchemaType
+
+	// Reference url
+	ref *gojsonreference.JsonReference
+	// Schema referenced
+	refSchema *subSchema
+	// Json reference
+	subSchema *gojsonreference.JsonReference
+
+	// hierarchy
+	parent                      *subSchema
+	definitions                 map[string]*subSchema
+	definitionsChildren         []*subSchema
+	itemsChildren               []*subSchema
+	itemsChildrenIsSingleSchema bool
+	propertiesChildren          []*subSchema
+
+	// validation : number / integer
+	multipleOf       *float64
+	maximum          *float64
+	exclusiveMaximum bool
+	minimum          *float64
+	exclusiveMinimum bool
+
+	// validation : string
+	minLength *int
+	maxLength *int
+	pattern   *regexp.Regexp
+	format    string
+
+	// validation : object
+	minProperties *int
+	maxProperties *int
+	required      []string
+
+	dependencies         map[string]interface{}
+	additionalProperties interface{}
+	patternProperties    map[string]*subSchema
+
+	// validation : array
+	minItems    *int
+	maxItems    *int
+	uniqueItems bool
+
+	additionalItems interface{}
+
+	// validation : all
+	enum []string
+
+	// validation : subSchema
+	oneOf []*subSchema
+	anyOf []*subSchema
+	allOf []*subSchema
+	not   *subSchema
+}
+
+func (s *subSchema) AddEnum(i interface{}) error {
+
+	is, err := marshalToJsonString(i)
+	if err != nil {
+		return err
+	}
+
+	if isStringInSlice(s.enum, *is) {
+		return errors.New(formatErrorDescription(
+			Locale.KeyItemsMustBeUnique(),
+			ErrorDetails{"key": KEY_ENUM},
+		))
+	}
+
+	s.enum = append(s.enum, *is)
+
+	return nil
+}
+
+func (s *subSchema) ContainsEnum(i interface{}) (bool, error) {
+
+	is, err := marshalToJsonString(i)
+	if err != nil {
+		return false, err
+	}
+
+	return isStringInSlice(s.enum, *is), nil
+}
+
+func (s *subSchema) AddOneOf(subSchema *subSchema) {
+	s.oneOf = append(s.oneOf, subSchema)
+}
+
+func (s *subSchema) AddAllOf(subSchema *subSchema) {
+	s.allOf = append(s.allOf, subSchema)
+}
+
+func (s *subSchema) AddAnyOf(subSchema *subSchema) {
+	s.anyOf = append(s.anyOf, subSchema)
+}
+
+func (s *subSchema) SetNot(subSchema *subSchema) {
+	s.not = subSchema
+}
+
+func (s *subSchema) AddRequired(value string) error {
+
+	if isStringInSlice(s.required, value) {
+		return errors.New(formatErrorDescription(
+			Locale.KeyItemsMustBeUnique(),
+			ErrorDetails{"key": KEY_REQUIRED},
+		))
+	}
+
+	s.required = append(s.required, value)
+
+	return nil
+}
+
+func (s *subSchema) AddDefinitionChild(child *subSchema) {
+	s.definitionsChildren = append(s.definitionsChildren, child)
+}
+
+func (s *subSchema) AddItemsChild(child *subSchema) {
+	s.itemsChildren = append(s.itemsChildren, child)
+}
+
+func (s *subSchema) AddPropertiesChild(child *subSchema) {
+	s.propertiesChildren = append(s.propertiesChildren, child)
+}
+
+func (s *subSchema) PatternPropertiesString() string {
+
+	if s.patternProperties == nil || len(s.patternProperties) == 0 {
+		return STRING_UNDEFINED // should never happen
+	}
+
+	patternPropertiesKeySlice := []string{}
+	for pk := range s.patternProperties {
+		patternPropertiesKeySlice = append(patternPropertiesKeySlice, `"`+pk+`"`)
+	}
+
+	if len(patternPropertiesKeySlice) == 1 {
+		return patternPropertiesKeySlice[0]
+	}
+
+	return "[" + strings.Join(patternPropertiesKeySlice, ",") + "]"
+
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/types.go b/vendor/github.com/xeipuuv/gojsonschema/types.go
new file mode 100644
index 000000000..952d22ef6
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/types.go
@@ -0,0 +1,58 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Contains const types for schema and JSON.
+//
+// created          28-02-2013
+
+package gojsonschema
+
+const (
+	TYPE_ARRAY   = `array`
+	TYPE_BOOLEAN = `boolean`
+	TYPE_INTEGER = `integer`
+	TYPE_NUMBER  = `number`
+	TYPE_NULL    = `null`
+	TYPE_OBJECT  = `object`
+	TYPE_STRING  = `string`
+)
+
+var JSON_TYPES []string
+var SCHEMA_TYPES []string
+
+func init() {
+	JSON_TYPES = []string{
+		TYPE_ARRAY,
+		TYPE_BOOLEAN,
+		TYPE_INTEGER,
+		TYPE_NUMBER,
+		TYPE_NULL,
+		TYPE_OBJECT,
+		TYPE_STRING}
+
+	SCHEMA_TYPES = []string{
+		TYPE_ARRAY,
+		TYPE_BOOLEAN,
+		TYPE_INTEGER,
+		TYPE_NUMBER,
+		TYPE_OBJECT,
+		TYPE_STRING}
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/utils.go b/vendor/github.com/xeipuuv/gojsonschema/utils.go
new file mode 100644
index 000000000..26cf75ebf
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/utils.go
@@ -0,0 +1,208 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Various utility functions.
+//
+// created          26-02-2013
+
+package gojsonschema
+
+import (
+	"encoding/json"
+	"fmt"
+	"math"
+	"reflect"
+	"strconv"
+)
+
+func isKind(what interface{}, kind reflect.Kind) bool {
+	target := what
+	if isJsonNumber(what) {
+		// JSON Numbers are strings!
+		target = *mustBeNumber(what)
+	}
+	return reflect.ValueOf(target).Kind() == kind
+}
+
+func existsMapKey(m map[string]interface{}, k string) bool {
+	_, ok := m[k]
+	return ok
+}
+
+func isStringInSlice(s []string, what string) bool {
+	for i := range s {
+		if s[i] == what {
+			return true
+		}
+	}
+	return false
+}
+
+func marshalToJsonString(value interface{}) (*string, error) {
+
+	mBytes, err := json.Marshal(value)
+	if err != nil {
+		return nil, err
+	}
+
+	sBytes := string(mBytes)
+	return &sBytes, nil
+}
+
+func isJsonNumber(what interface{}) bool {
+
+	switch what.(type) {
+
+	case json.Number:
+		return true
+	}
+
+	return false
+}
+
+func checkJsonNumber(what interface{}) (isValidFloat64 bool, isValidInt64 bool, isValidInt32 bool) {
+
+	jsonNumber := what.(json.Number)
+
+	f64, errFloat64 := jsonNumber.Float64()
+	s64 := strconv.FormatFloat(f64, 'f', -1, 64)
+	_, errInt64 := strconv.ParseInt(s64, 10, 64)
+
+	isValidFloat64 = errFloat64 == nil
+	isValidInt64 = errInt64 == nil
+
+	_, errInt32 := strconv.ParseInt(s64, 10, 32)
+	isValidInt32 = isValidInt64 && errInt32 == nil
+
+	return
+
+}
+
+// same as ECMA Number.MAX_SAFE_INTEGER and Number.MIN_SAFE_INTEGER
+const (
+	max_json_float = float64(1<<53 - 1)  // 9007199254740991.0 	 2^53 - 1
+	min_json_float = -float64(1<<53 - 1) //-9007199254740991.0	-2^53 - 1
+)
+
+func isFloat64AnInteger(f float64) bool {
+
+	if math.IsNaN(f) || math.IsInf(f, 0) || f < min_json_float || f > max_json_float {
+		return false
+	}
+
+	return f == float64(int64(f)) || f == float64(uint64(f))
+}
+
+func mustBeInteger(what interface{}) *int {
+
+	if isJsonNumber(what) {
+
+		number := what.(json.Number)
+
+		_, _, isValidInt32 := checkJsonNumber(number)
+
+		if isValidInt32 {
+
+			int64Value, err := number.Int64()
+			if err != nil {
+				return nil
+			}
+
+			int32Value := int(int64Value)
+			return &int32Value
+
+		} else {
+			return nil
+		}
+
+	}
+
+	return nil
+}
+
+func mustBeNumber(what interface{}) *float64 {
+
+	if isJsonNumber(what) {
+
+		number := what.(json.Number)
+		float64Value, err := number.Float64()
+
+		if err == nil {
+			return &float64Value
+		} else {
+			return nil
+		}
+
+	}
+
+	return nil
+
+}
+
+// formats a number so that it is displayed as the smallest string possible
+func resultErrorFormatJsonNumber(n json.Number) string {
+
+	if int64Value, err := n.Int64(); err == nil {
+		return fmt.Sprintf("%d", int64Value)
+	}
+
+	float64Value, _ := n.Float64()
+
+	return fmt.Sprintf("%g", float64Value)
+}
+
+// formats a number so that it is displayed as the smallest string possible
+func resultErrorFormatNumber(n float64) string {
+
+	if isFloat64AnInteger(n) {
+		return fmt.Sprintf("%d", int64(n))
+	}
+
+	return fmt.Sprintf("%g", n)
+}
+
+func convertDocumentNode(val interface{}) interface{} {
+
+	if lval, ok := val.([]interface{}); ok {
+
+		res := []interface{}{}
+		for _, v := range lval {
+			res = append(res, convertDocumentNode(v))
+		}
+
+		return res
+
+	}
+
+	if mval, ok := val.(map[interface{}]interface{}); ok {
+
+		res := map[string]interface{}{}
+
+		for k, v := range mval {
+			res[k.(string)] = convertDocumentNode(v)
+		}
+
+		return res
+
+	}
+
+	return val
+}
diff --git a/vendor/github.com/xeipuuv/gojsonschema/validation.go b/vendor/github.com/xeipuuv/gojsonschema/validation.go
new file mode 100644
index 000000000..9afea2518
--- /dev/null
+++ b/vendor/github.com/xeipuuv/gojsonschema/validation.go
@@ -0,0 +1,844 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// 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.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Extends Schema and subSchema, implements the validation phase.
+//
+// created          28-02-2013
+
+package gojsonschema
+
+import (
+	"encoding/json"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+func Validate(ls JSONLoader, ld JSONLoader) (*Result, error) {
+
+	var err error
+
+	// load schema
+
+	schema, err := NewSchema(ls)
+	if err != nil {
+		return nil, err
+	}
+
+	// begine validation
+
+	return schema.Validate(ld)
+
+}
+
+func (v *Schema) Validate(l JSONLoader) (*Result, error) {
+
+	// load document
+
+	root, err := l.LoadJSON()
+	if err != nil {
+		return nil, err
+	}
+
+	// begin validation
+
+	result := &Result{}
+	context := newJsonContext(STRING_CONTEXT_ROOT, nil)
+	v.rootSchema.validateRecursive(v.rootSchema, root, result, context)
+
+	return result, nil
+
+}
+
+func (v *subSchema) subValidateWithContext(document interface{}, context *jsonContext) *Result {
+	result := &Result{}
+	v.validateRecursive(v, document, result, context)
+	return result
+}
+
+// Walker function to validate the json recursively against the subSchema
+func (v *subSchema) validateRecursive(currentSubSchema *subSchema, currentNode interface{}, result *Result, context *jsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateRecursive %s", context.String())
+		internalLog(" %v", currentNode)
+	}
+
+	// Handle referenced schemas, returns directly when a $ref is found
+	if currentSubSchema.refSchema != nil {
+		v.validateRecursive(currentSubSchema.refSchema, currentNode, result, context)
+		return
+	}
+
+	// Check for null value
+	if currentNode == nil {
+		if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_NULL) {
+			result.addError(
+				new(InvalidTypeError),
+				context,
+				currentNode,
+				ErrorDetails{
+					"expected": currentSubSchema.types.String(),
+					"given":    TYPE_NULL,
+				},
+			)
+			return
+		}
+
+		currentSubSchema.validateSchema(currentSubSchema, currentNode, result, context)
+		v.validateCommon(currentSubSchema, currentNode, result, context)
+
+	} else { // Not a null value
+
+		if isJsonNumber(currentNode) {
+
+			value := currentNode.(json.Number)
+
+			_, isValidInt64, _ := checkJsonNumber(value)
+
+			validType := currentSubSchema.types.Contains(TYPE_NUMBER) || (isValidInt64 && currentSubSchema.types.Contains(TYPE_INTEGER))
+
+			if currentSubSchema.types.IsTyped() && !validType {
+
+				givenType := TYPE_INTEGER
+				if !isValidInt64 {
+					givenType = TYPE_NUMBER
+				}
+
+				result.addError(
+					new(InvalidTypeError),
+					context,
+					currentNode,
+					ErrorDetails{
+						"expected": currentSubSchema.types.String(),
+						"given":    givenType,
+					},
+				)
+				return
+			}
+
+			currentSubSchema.validateSchema(currentSubSchema, value, result, context)
+			v.validateNumber(currentSubSchema, value, result, context)
+			v.validateCommon(currentSubSchema, value, result, context)
+			v.validateString(currentSubSchema, value, result, context)
+
+		} else {
+
+			rValue := reflect.ValueOf(currentNode)
+			rKind := rValue.Kind()
+
+			switch rKind {
+
+			// Slice => JSON array
+
+			case reflect.Slice:
+
+				if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_ARRAY) {
+					result.addError(
+						new(InvalidTypeError),
+						context,
+						currentNode,
+						ErrorDetails{
+							"expected": currentSubSchema.types.String(),
+							"given":    TYPE_ARRAY,
+						},
+					)
+					return
+				}
+
+				castCurrentNode := currentNode.([]interface{})
+
+				currentSubSchema.validateSchema(currentSubSchema, castCurrentNode, result, context)
+
+				v.validateArray(currentSubSchema, castCurrentNode, result, context)
+				v.validateCommon(currentSubSchema, castCurrentNode, result, context)
+
+			// Map => JSON object
+
+			case reflect.Map:
+				if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_OBJECT) {
+					result.addError(
+						new(InvalidTypeError),
+						context,
+						currentNode,
+						ErrorDetails{
+							"expected": currentSubSchema.types.String(),
+							"given":    TYPE_OBJECT,
+						},
+					)
+					return
+				}
+
+				castCurrentNode, ok := currentNode.(map[string]interface{})
+				if !ok {
+					castCurrentNode = convertDocumentNode(currentNode).(map[string]interface{})
+				}
+
+				currentSubSchema.validateSchema(currentSubSchema, castCurrentNode, result, context)
+
+				v.validateObject(currentSubSchema, castCurrentNode, result, context)
+				v.validateCommon(currentSubSchema, castCurrentNode, result, context)
+
+				for _, pSchema := range currentSubSchema.propertiesChildren {
+					nextNode, ok := castCurrentNode[pSchema.property]
+					if ok {
+						subContext := newJsonContext(pSchema.property, context)
+						v.validateRecursive(pSchema, nextNode, result, subContext)
+					}
+				}
+
+			// Simple JSON values : string, number, boolean
+
+			case reflect.Bool:
+
+				if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_BOOLEAN) {
+					result.addError(
+						new(InvalidTypeError),
+						context,
+						currentNode,
+						ErrorDetails{
+							"expected": currentSubSchema.types.String(),
+							"given":    TYPE_BOOLEAN,
+						},
+					)
+					return
+				}
+
+				value := currentNode.(bool)
+
+				currentSubSchema.validateSchema(currentSubSchema, value, result, context)
+				v.validateNumber(currentSubSchema, value, result, context)
+				v.validateCommon(currentSubSchema, value, result, context)
+				v.validateString(currentSubSchema, value, result, context)
+
+			case reflect.String:
+
+				if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_STRING) {
+					result.addError(
+						new(InvalidTypeError),
+						context,
+						currentNode,
+						ErrorDetails{
+							"expected": currentSubSchema.types.String(),
+							"given":    TYPE_STRING,
+						},
+					)
+					return
+				}
+
+				value := currentNode.(string)
+
+				currentSubSchema.validateSchema(currentSubSchema, value, result, context)
+				v.validateNumber(currentSubSchema, value, result, context)
+				v.validateCommon(currentSubSchema, value, result, context)
+				v.validateString(currentSubSchema, value, result, context)
+
+			}
+
+		}
+
+	}
+
+	result.incrementScore()
+}
+
+// Different kinds of validation there, subSchema / common / array / object / string...
+func (v *subSchema) validateSchema(currentSubSchema *subSchema, currentNode interface{}, result *Result, context *jsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateSchema %s", context.String())
+		internalLog(" %v", currentNode)
+	}
+
+	if len(currentSubSchema.anyOf) > 0 {
+
+		validatedAnyOf := false
+		var bestValidationResult *Result
+
+		for _, anyOfSchema := range currentSubSchema.anyOf {
+			if !validatedAnyOf {
+				validationResult := anyOfSchema.subValidateWithContext(currentNode, context)
+				validatedAnyOf = validationResult.Valid()
+
+				if !validatedAnyOf && (bestValidationResult == nil || validationResult.score > bestValidationResult.score) {
+					bestValidationResult = validationResult
+				}
+			}
+		}
+		if !validatedAnyOf {
+
+			result.addError(new(NumberAnyOfError), context, currentNode, ErrorDetails{})
+
+			if bestValidationResult != nil {
+				// add error messages of closest matching subSchema as
+				// that's probably the one the user was trying to match
+				result.mergeErrors(bestValidationResult)
+			}
+		}
+	}
+
+	if len(currentSubSchema.oneOf) > 0 {
+
+		nbValidated := 0
+		var bestValidationResult *Result
+
+		for _, oneOfSchema := range currentSubSchema.oneOf {
+			validationResult := oneOfSchema.subValidateWithContext(currentNode, context)
+			if validationResult.Valid() {
+				nbValidated++
+			} else if nbValidated == 0 && (bestValidationResult == nil || validationResult.score > bestValidationResult.score) {
+				bestValidationResult = validationResult
+			}
+		}
+
+		if nbValidated != 1 {
+
+			result.addError(new(NumberOneOfError), context, currentNode, ErrorDetails{})
+
+			if nbValidated == 0 {
+				// add error messages of closest matching subSchema as
+				// that's probably the one the user was trying to match
+				result.mergeErrors(bestValidationResult)
+			}
+		}
+
+	}
+
+	if len(currentSubSchema.allOf) > 0 {
+		nbValidated := 0
+
+		for _, allOfSchema := range currentSubSchema.allOf {
+			validationResult := allOfSchema.subValidateWithContext(currentNode, context)
+			if validationResult.Valid() {
+				nbValidated++
+			}
+			result.mergeErrors(validationResult)
+		}
+
+		if nbValidated != len(currentSubSchema.allOf) {
+			result.addError(new(NumberAllOfError), context, currentNode, ErrorDetails{})
+		}
+	}
+
+	if currentSubSchema.not != nil {
+		validationResult := currentSubSchema.not.subValidateWithContext(currentNode, context)
+		if validationResult.Valid() {
+			result.addError(new(NumberNotError), context, currentNode, ErrorDetails{})
+		}
+	}
+
+	if currentSubSchema.dependencies != nil && len(currentSubSchema.dependencies) > 0 {
+		if isKind(currentNode, reflect.Map) {
+			for elementKey := range currentNode.(map[string]interface{}) {
+				if dependency, ok := currentSubSchema.dependencies[elementKey]; ok {
+					switch dependency := dependency.(type) {
+
+					case []string:
+						for _, dependOnKey := range dependency {
+							if _, dependencyResolved := currentNode.(map[string]interface{})[dependOnKey]; !dependencyResolved {
+								result.addError(
+									new(MissingDependencyError),
+									context,
+									currentNode,
+									ErrorDetails{"dependency": dependOnKey},
+								)
+							}
+						}
+
+					case *subSchema:
+						dependency.validateRecursive(dependency, currentNode, result, context)
+
+					}
+				}
+			}
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validateCommon(currentSubSchema *subSchema, value interface{}, result *Result, context *jsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateCommon %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	// enum:
+	if len(currentSubSchema.enum) > 0 {
+		has, err := currentSubSchema.ContainsEnum(value)
+		if err != nil {
+			result.addError(new(InternalError), context, value, ErrorDetails{"error": err})
+		}
+		if !has {
+			result.addError(
+				new(EnumError),
+				context,
+				value,
+				ErrorDetails{
+					"allowed": strings.Join(currentSubSchema.enum, ", "),
+				},
+			)
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validateArray(currentSubSchema *subSchema, value []interface{}, result *Result, context *jsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateArray %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	nbValues := len(value)
+
+	// TODO explain
+	if currentSubSchema.itemsChildrenIsSingleSchema {
+		for i := range value {
+			subContext := newJsonContext(strconv.Itoa(i), context)
+			validationResult := currentSubSchema.itemsChildren[0].subValidateWithContext(value[i], subContext)
+			result.mergeErrors(validationResult)
+		}
+	} else {
+		if currentSubSchema.itemsChildren != nil && len(currentSubSchema.itemsChildren) > 0 {
+
+			nbItems := len(currentSubSchema.itemsChildren)
+
+			// while we have both schemas and values, check them against each other
+			for i := 0; i != nbItems && i != nbValues; i++ {
+				subContext := newJsonContext(strconv.Itoa(i), context)
+				validationResult := currentSubSchema.itemsChildren[i].subValidateWithContext(value[i], subContext)
+				result.mergeErrors(validationResult)
+			}
+
+			if nbItems < nbValues {
+				// we have less schemas than elements in the instance array,
+				// but that might be ok if "additionalItems" is specified.
+
+				switch currentSubSchema.additionalItems.(type) {
+				case bool:
+					if !currentSubSchema.additionalItems.(bool) {
+						result.addError(new(ArrayNoAdditionalItemsError), context, value, ErrorDetails{})
+					}
+				case *subSchema:
+					additionalItemSchema := currentSubSchema.additionalItems.(*subSchema)
+					for i := nbItems; i != nbValues; i++ {
+						subContext := newJsonContext(strconv.Itoa(i), context)
+						validationResult := additionalItemSchema.subValidateWithContext(value[i], subContext)
+						result.mergeErrors(validationResult)
+					}
+				}
+			}
+		}
+	}
+
+	// minItems & maxItems
+	if currentSubSchema.minItems != nil {
+		if nbValues < int(*currentSubSchema.minItems) {
+			result.addError(
+				new(ArrayMinItemsError),
+				context,
+				value,
+				ErrorDetails{"min": *currentSubSchema.minItems},
+			)
+		}
+	}
+	if currentSubSchema.maxItems != nil {
+		if nbValues > int(*currentSubSchema.maxItems) {
+			result.addError(
+				new(ArrayMaxItemsError),
+				context,
+				value,
+				ErrorDetails{"max": *currentSubSchema.maxItems},
+			)
+		}
+	}
+
+	// uniqueItems:
+	if currentSubSchema.uniqueItems {
+		var stringifiedItems []string
+		for _, v := range value {
+			vString, err := marshalToJsonString(v)
+			if err != nil {
+				result.addError(new(InternalError), context, value, ErrorDetails{"err": err})
+			}
+			if isStringInSlice(stringifiedItems, *vString) {
+				result.addError(
+					new(ItemsMustBeUniqueError),
+					context,
+					value,
+					ErrorDetails{"type": TYPE_ARRAY},
+				)
+			}
+			stringifiedItems = append(stringifiedItems, *vString)
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validateObject(currentSubSchema *subSchema, value map[string]interface{}, result *Result, context *jsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateObject %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	// minProperties & maxProperties:
+	if currentSubSchema.minProperties != nil {
+		if len(value) < int(*currentSubSchema.minProperties) {
+			result.addError(
+				new(ArrayMinPropertiesError),
+				context,
+				value,
+				ErrorDetails{"min": *currentSubSchema.minProperties},
+			)
+		}
+	}
+	if currentSubSchema.maxProperties != nil {
+		if len(value) > int(*currentSubSchema.maxProperties) {
+			result.addError(
+				new(ArrayMaxPropertiesError),
+				context,
+				value,
+				ErrorDetails{"max": *currentSubSchema.maxProperties},
+			)
+		}
+	}
+
+	// required:
+	for _, requiredProperty := range currentSubSchema.required {
+		_, ok := value[requiredProperty]
+		if ok {
+			result.incrementScore()
+		} else {
+			result.addError(
+				new(RequiredError),
+				context,
+				value,
+				ErrorDetails{"property": requiredProperty},
+			)
+		}
+	}
+
+	// additionalProperty & patternProperty:
+	if currentSubSchema.additionalProperties != nil {
+
+		switch currentSubSchema.additionalProperties.(type) {
+		case bool:
+
+			if !currentSubSchema.additionalProperties.(bool) {
+
+				for pk := range value {
+
+					found := false
+					for _, spValue := range currentSubSchema.propertiesChildren {
+						if pk == spValue.property {
+							found = true
+						}
+					}
+
+					pp_has, pp_match := v.validatePatternProperty(currentSubSchema, pk, value[pk], result, context)
+
+					if found {
+
+						if pp_has && !pp_match {
+							result.addError(
+								new(AdditionalPropertyNotAllowedError),
+								context,
+								value[pk],
+								ErrorDetails{"property": pk},
+							)
+						}
+
+					} else {
+
+						if !pp_has || !pp_match {
+							result.addError(
+								new(AdditionalPropertyNotAllowedError),
+								context,
+								value[pk],
+								ErrorDetails{"property": pk},
+							)
+						}
+
+					}
+				}
+			}
+
+		case *subSchema:
+
+			additionalPropertiesSchema := currentSubSchema.additionalProperties.(*subSchema)
+			for pk := range value {
+
+				found := false
+				for _, spValue := range currentSubSchema.propertiesChildren {
+					if pk == spValue.property {
+						found = true
+					}
+				}
+
+				pp_has, pp_match := v.validatePatternProperty(currentSubSchema, pk, value[pk], result, context)
+
+				if found {
+
+					if pp_has && !pp_match {
+						validationResult := additionalPropertiesSchema.subValidateWithContext(value[pk], context)
+						result.mergeErrors(validationResult)
+					}
+
+				} else {
+
+					if !pp_has || !pp_match {
+						validationResult := additionalPropertiesSchema.subValidateWithContext(value[pk], context)
+						result.mergeErrors(validationResult)
+					}
+
+				}
+
+			}
+		}
+	} else {
+
+		for pk := range value {
+
+			pp_has, pp_match := v.validatePatternProperty(currentSubSchema, pk, value[pk], result, context)
+
+			if pp_has && !pp_match {
+
+				result.addError(
+					new(InvalidPropertyPatternError),
+					context,
+					value[pk],
+					ErrorDetails{
+						"property": pk,
+						"pattern":  currentSubSchema.PatternPropertiesString(),
+					},
+				)
+			}
+
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validatePatternProperty(currentSubSchema *subSchema, key string, value interface{}, result *Result, context *jsonContext) (has bool, matched bool) {
+
+	if internalLogEnabled {
+		internalLog("validatePatternProperty %s", context.String())
+		internalLog(" %s %v", key, value)
+	}
+
+	has = false
+
+	validatedkey := false
+
+	for pk, pv := range currentSubSchema.patternProperties {
+		if matches, _ := regexp.MatchString(pk, key); matches {
+			has = true
+			subContext := newJsonContext(key, context)
+			validationResult := pv.subValidateWithContext(value, subContext)
+			result.mergeErrors(validationResult)
+			if validationResult.Valid() {
+				validatedkey = true
+			}
+		}
+	}
+
+	if !validatedkey {
+		return has, false
+	}
+
+	result.incrementScore()
+
+	return has, true
+}
+
+func (v *subSchema) validateString(currentSubSchema *subSchema, value interface{}, result *Result, context *jsonContext) {
+
+	// Ignore JSON numbers
+	if isJsonNumber(value) {
+		return
+	}
+
+	// Ignore non strings
+	if !isKind(value, reflect.String) {
+		return
+	}
+
+	if internalLogEnabled {
+		internalLog("validateString %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	stringValue := value.(string)
+
+	// minLength & maxLength:
+	if currentSubSchema.minLength != nil {
+		if utf8.RuneCount([]byte(stringValue)) < int(*currentSubSchema.minLength) {
+			result.addError(
+				new(StringLengthGTEError),
+				context,
+				value,
+				ErrorDetails{"min": *currentSubSchema.minLength},
+			)
+		}
+	}
+	if currentSubSchema.maxLength != nil {
+		if utf8.RuneCount([]byte(stringValue)) > int(*currentSubSchema.maxLength) {
+			result.addError(
+				new(StringLengthLTEError),
+				context,
+				value,
+				ErrorDetails{"max": *currentSubSchema.maxLength},
+			)
+		}
+	}
+
+	// pattern:
+	if currentSubSchema.pattern != nil {
+		if !currentSubSchema.pattern.MatchString(stringValue) {
+			result.addError(
+				new(DoesNotMatchPatternError),
+				context,
+				value,
+				ErrorDetails{"pattern": currentSubSchema.pattern},
+			)
+
+		}
+	}
+
+	// format
+	if currentSubSchema.format != "" {
+		if !FormatCheckers.IsFormat(currentSubSchema.format, stringValue) {
+			result.addError(
+				new(DoesNotMatchFormatError),
+				context,
+				value,
+				ErrorDetails{"format": currentSubSchema.format},
+			)
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validateNumber(currentSubSchema *subSchema, value interface{}, result *Result, context *jsonContext) {
+
+	// Ignore non numbers
+	if !isJsonNumber(value) {
+		return
+	}
+
+	if internalLogEnabled {
+		internalLog("validateNumber %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	number := value.(json.Number)
+	float64Value, _ := number.Float64()
+
+	// multipleOf:
+	if currentSubSchema.multipleOf != nil {
+
+		if !isFloat64AnInteger(float64Value / *currentSubSchema.multipleOf) {
+			result.addError(
+				new(MultipleOfError),
+				context,
+				resultErrorFormatJsonNumber(number),
+				ErrorDetails{"multiple": *currentSubSchema.multipleOf},
+			)
+		}
+	}
+
+	//maximum & exclusiveMaximum:
+	if currentSubSchema.maximum != nil {
+		if currentSubSchema.exclusiveMaximum {
+			if float64Value >= *currentSubSchema.maximum {
+				result.addError(
+					new(NumberLTError),
+					context,
+					resultErrorFormatJsonNumber(number),
+					ErrorDetails{
+						"max": resultErrorFormatNumber(*currentSubSchema.maximum),
+					},
+				)
+			}
+		} else {
+			if float64Value > *currentSubSchema.maximum {
+				result.addError(
+					new(NumberLTEError),
+					context,
+					resultErrorFormatJsonNumber(number),
+					ErrorDetails{
+						"max": resultErrorFormatNumber(*currentSubSchema.maximum),
+					},
+				)
+			}
+		}
+	}
+
+	//minimum & exclusiveMinimum:
+	if currentSubSchema.minimum != nil {
+		if currentSubSchema.exclusiveMinimum {
+			if float64Value <= *currentSubSchema.minimum {
+				result.addError(
+					new(NumberGTError),
+					context,
+					resultErrorFormatJsonNumber(number),
+					ErrorDetails{
+						"min": resultErrorFormatNumber(*currentSubSchema.minimum),
+					},
+				)
+			}
+		} else {
+			if float64Value < *currentSubSchema.minimum {
+				result.addError(
+					new(NumberGTEError),
+					context,
+					resultErrorFormatJsonNumber(number),
+					ErrorDetails{
+						"min": resultErrorFormatNumber(*currentSubSchema.minimum),
+					},
+				)
+			}
+		}
+	}
+
+	// format
+	if currentSubSchema.format != "" {
+		if !FormatCheckers.IsFormat(currentSubSchema.format, float64Value) {
+			result.addError(
+				new(DoesNotMatchFormatError),
+				context,
+				value,
+				ErrorDetails{"format": currentSubSchema.format},
+			)
+		}
+	}
+
+	result.incrementScore()
+}