Update traefik dependencies (docker/docker and related) (#1823)

Update traefik dependencies (docker/docker and related)

- Update dependencies
- Fix compilation problems
- Remove vdemeester/docker-events (in docker api now)
- Remove `integration/vendor`
- Use `testImport`
- update some deps.
- regenerate the lock from scratch (after a `glide cc`)

vendor/github.com/xeipuuv/gojsonreference/reference.go

@@ -0,0 +1,141 @@
+// 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	gojsonreference
+// repository-desc	An implementation of JSON Reference - Go language
+//
+// description		Main and unique file.
+//
+// created      	26-02-2013
+
+package gojsonreference
+
+import (
+	"errors"
+	"github.com/xeipuuv/gojsonpointer"
+	"net/url"
+	"path/filepath"
+	"runtime"
+	"strings"
+)
+
+const (
+	const_fragment_char = `#`
+)
+
+func NewJsonReference(jsonReferenceString string) (JsonReference, error) {
+
+	var r JsonReference
+	err := r.parse(jsonReferenceString)
+	return r, err
+
+}
+
+type JsonReference struct {
+	referenceUrl     *url.URL
+	referencePointer gojsonpointer.JsonPointer
+
+	HasFullUrl      bool
+	HasUrlPathOnly  bool
+	HasFragmentOnly bool
+	HasFileScheme   bool
+	HasFullFilePath bool
+}
+
+func (r *JsonReference) GetUrl() *url.URL {
+	return r.referenceUrl
+}
+
+func (r *JsonReference) GetPointer() *gojsonpointer.JsonPointer {
+	return &r.referencePointer
+}
+
+func (r *JsonReference) String() string {
+
+	if r.referenceUrl != nil {
+		return r.referenceUrl.String()
+	}
+
+	if r.HasFragmentOnly {
+		return const_fragment_char + r.referencePointer.String()
+	}
+
+	return r.referencePointer.String()
+}
+
+func (r *JsonReference) IsCanonical() bool {
+	return (r.HasFileScheme && r.HasFullFilePath) || (!r.HasFileScheme && r.HasFullUrl)
+}
+
+// "Constructor", parses the given string JSON reference
+func (r *JsonReference) parse(jsonReferenceString string) (err error) {
+
+	r.referenceUrl, err = url.Parse(jsonReferenceString)
+	if err != nil {
+		return
+	}
+	refUrl := r.referenceUrl
+
+	if refUrl.Scheme != "" && refUrl.Host != "" {
+		r.HasFullUrl = true
+	} else {
+		if refUrl.Path != "" {
+			r.HasUrlPathOnly = true
+		} else if refUrl.RawQuery == "" && refUrl.Fragment != "" {
+			r.HasFragmentOnly = true
+		}
+	}
+
+	r.HasFileScheme = refUrl.Scheme == "file"
+	if runtime.GOOS == "windows" {
+		// on Windows, a file URL may have an extra leading slash, and if it
+		// doesn't then its first component will be treated as the host by the
+		// Go runtime
+		if refUrl.Host == "" && strings.HasPrefix(refUrl.Path, "/") {
+			r.HasFullFilePath = filepath.IsAbs(refUrl.Path[1:])
+		} else {
+			r.HasFullFilePath = filepath.IsAbs(refUrl.Host + refUrl.Path)
+		}
+	} else {
+		r.HasFullFilePath = filepath.IsAbs(refUrl.Path)
+	}
+
+	// invalid json-pointer error means url has no json-pointer fragment. simply ignore error
+	r.referencePointer, _ = gojsonpointer.NewJsonPointer(refUrl.Fragment)
+
+	return
+}
+
+// Creates a new reference from a parent and a child
+// If the child cannot inherit from the parent, an error is returned
+func (r *JsonReference) Inherits(child JsonReference) (*JsonReference, error) {
+	childUrl := child.GetUrl()
+	parentUrl := r.GetUrl()
+	if childUrl == nil {
+		return nil, errors.New("childUrl is nil!")
+	}
+	if parentUrl == nil {
+		return nil, errors.New("parentUrl is nil!")
+	}
+
+	ref, err := NewJsonReference(parentUrl.ResolveReference(childUrl).String())
+	if err != nil {
+		return nil, err
+	}
+	return &ref, err
+}