Use vendored dependencies

vendor/github.com/tomnomnom/linkheader/.gitignore

@@ -0,0 +1,2 @@
+cpu.out
+linkheader.test

vendor/github.com/tomnomnom/linkheader/.travis.yml

@@ -0,0 +1,6 @@
+language: go
+
+go:
+  - 1.6
+  - 1.7
+  - tip

vendor/github.com/tomnomnom/linkheader/CONTRIBUTING.mkd

@@ -0,0 +1,10 @@
+# Contributing
+
+* Raise an issue if appropriate
+* Fork the repo
+* Bootstrap the dev dependencies (run `./script/bootstrap`)
+* Make your changes
+* Use [gofmt](https://golang.org/cmd/gofmt/)
+* Make sure the tests pass (run `./script/test`)
+* Make sure the linters pass (run `./script/lint`)
+* Issue a pull request

vendor/github.com/tomnomnom/linkheader/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Tom Hudson
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/tomnomnom/linkheader/README.mkd

@@ -0,0 +1,35 @@
+# Golang Link Header Parser
+
+Library for parsing HTTP Link headers. Requires Go 1.6 or higher.
+
+Docs can be found on [the GoDoc page](https://godoc.org/github.com/tomnomnom/linkheader).
+
+[![Build Status](https://travis-ci.org/tomnomnom/linkheader.svg)](https://travis-ci.org/tomnomnom/linkheader)
+
+## Basic Example
+
+```go
+package main
+
+import (
+	"fmt"
+
+	"github.com/tomnomnom/linkheader"
+)
+
+func main() {
+	header := "<https://api.github.com/user/58276/repos?page=2>; rel=\"next\"," +
+		"<https://api.github.com/user/58276/repos?page=2>; rel=\"last\""
+	links := linkheader.Parse(header)
+
+	for _, link := range links {
+		fmt.Printf("URL: %s; Rel: %s\n", link.URL, link.Rel)
+	}
+}
+
+// Output:
+// URL: https://api.github.com/user/58276/repos?page=2; Rel: next
+// URL: https://api.github.com/user/58276/repos?page=2; Rel: last
+```
+
+

vendor/github.com/tomnomnom/linkheader/main.go

@@ -0,0 +1,151 @@
+// Package linkheader provides functions for parsing HTTP Link headers
+package linkheader
+
+import (
+	"fmt"
+	"strings"
+)
+
+// A Link is a single URL and related parameters
+type Link struct {
+	URL    string
+	Rel    string
+	Params map[string]string
+}
+
+// HasParam returns if a Link has a particular parameter or not
+func (l Link) HasParam(key string) bool {
+	for p := range l.Params {
+		if p == key {
+			return true
+		}
+	}
+	return false
+}
+
+// Param returns the value of a parameter if it exists
+func (l Link) Param(key string) string {
+	for k, v := range l.Params {
+		if key == k {
+			return v
+		}
+	}
+	return ""
+}
+
+// String returns the string representation of a link
+func (l Link) String() string {
+
+	p := make([]string, 0, len(l.Params))
+	for k, v := range l.Params {
+		p = append(p, fmt.Sprintf("%s=\"%s\"", k, v))
+	}
+	if l.Rel != "" {
+		p = append(p, fmt.Sprintf("%s=\"%s\"", "rel", l.Rel))
+	}
+	return fmt.Sprintf("<%s>; %s", l.URL, strings.Join(p, "; "))
+}
+
+// Links is a slice of Link structs
+type Links []Link
+
+// FilterByRel filters a group of Links by the provided Rel attribute
+func (l Links) FilterByRel(r string) Links {
+	links := make(Links, 0)
+	for _, link := range l {
+		if link.Rel == r {
+			links = append(links, link)
+		}
+	}
+	return links
+}
+
+// String returns the string representation of multiple Links
+// for use in HTTP responses etc
+func (l Links) String() string {
+	if l == nil {
+		return fmt.Sprint(nil)
+	}
+
+	var strs []string
+	for _, link := range l {
+		strs = append(strs, link.String())
+	}
+	return strings.Join(strs, ", ")
+}
+
+// Parse parses a raw Link header in the form:
+//   <url>; rel="foo", <url>; rel="bar"; wat="dis"
+// returning a slice of Link structs
+func Parse(raw string) Links {
+	var links Links
+
+	// One chunk: <url>; rel="foo"
+	for _, chunk := range strings.Split(raw, ",") {
+
+		link := Link{URL: "", Rel: "", Params: make(map[string]string)}
+
+		// Figure out what each piece of the chunk is
+		for _, piece := range strings.Split(chunk, ";") {
+
+			piece = strings.Trim(piece, " ")
+			if piece == "" {
+				continue
+			}
+
+			// URL
+			if piece[0] == '<' && piece[len(piece)-1] == '>' {
+				link.URL = strings.Trim(piece, "<>")
+				continue
+			}
+
+			// Params
+			key, val := parseParam(piece)
+			if key == "" {
+				continue
+			}
+
+			// Special case for rel
+			if strings.ToLower(key) == "rel" {
+				link.Rel = val
+			} else {
+				link.Params[key] = val
+			}
+		}
+
+		if link.URL != "" {
+			links = append(links, link)
+		}
+	}
+
+	return links
+}
+
+// ParseMultiple is like Parse, but accepts a slice of headers
+// rather than just one header string
+func ParseMultiple(headers []string) Links {
+	links := make(Links, 0)
+	for _, header := range headers {
+		links = append(links, Parse(header)...)
+	}
+	return links
+}
+
+// parseParam takes a raw param in the form key="val" and
+// returns the key and value as seperate strings
+func parseParam(raw string) (key, val string) {
+
+	parts := strings.SplitN(raw, "=", 2)
+	if len(parts) == 1 {
+		return parts[0], ""
+	}
+	if len(parts) != 2 {
+		return "", ""
+	}
+
+	key = parts[0]
+	val = strings.Trim(parts[1], "\"")
+
+	return key, val
+
+}