diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json
index 0a10c91e..9578ccd6 100644
--- a/Godeps/Godeps.json
+++ b/Godeps/Godeps.json
@@ -13,6 +13,11 @@
 			"ImportPath": "github.com/beorn7/perks/quantile",
 			"Rev": "b965b613227fddccbfffe13eae360ed3fa822f8d"
 		},
+		{
+			"ImportPath": "github.com/codegangsta/negroni",
+			"Comment": "v0.1-70-gc7477ad",
+			"Rev": "c7477ad8e330bef55bf1ebe300cf8aa67c492d1b"
+		},
 		{
 			"ImportPath": "github.com/coreos/go-systemd/journal",
 			"Comment": "v4-34-g4f14f6d",
diff --git a/vendor/github.com/codegangsta/negroni/LICENSE b/vendor/github.com/codegangsta/negroni/LICENSE
new file mode 100644
index 00000000..08b5e20a
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Jeremy Saenz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/github.com/codegangsta/negroni/README.md b/vendor/github.com/codegangsta/negroni/README.md
new file mode 100644
index 00000000..9294d705
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/README.md
@@ -0,0 +1,181 @@
+# Negroni [![GoDoc](https://godoc.org/github.com/codegangsta/negroni?status.svg)](http://godoc.org/github.com/codegangsta/negroni) [![wercker status](https://app.wercker.com/status/13688a4a94b82d84a0b8d038c4965b61/s "wercker status")](https://app.wercker.com/project/bykey/13688a4a94b82d84a0b8d038c4965b61)
+
+Negroni is an idiomatic approach to web middleware in Go. It is tiny, non-intrusive, and encourages use of `net/http` Handlers.
+
+If you like the idea of [Martini](http://github.com/go-martini/martini), but you think it contains too much magic, then Negroni is a great fit.
+
+
+Language Translations:
+* [Português Brasileiro (pt_BR)](translations/README_pt_br.md)
+
+## Getting Started
+
+After installing Go and setting up your [GOPATH](http://golang.org/doc/code.html#GOPATH), create your first `.go` file. We'll call it `server.go`.
+
+~~~ go
+package main
+
+import (
+  "github.com/codegangsta/negroni"
+  "net/http"
+  "fmt"
+)
+
+func main() {
+  mux := http.NewServeMux()
+  mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
+    fmt.Fprintf(w, "Welcome to the home page!")
+  })
+
+  n := negroni.Classic()
+  n.UseHandler(mux)
+  n.Run(":3000")
+}
+~~~
+
+Then install the Negroni package (**go 1.1** and greater is required):
+~~~
+go get github.com/codegangsta/negroni
+~~~
+
+Then run your server:
+~~~
+go run server.go
+~~~
+
+You will now have a Go net/http webserver running on `localhost:3000`.
+
+## Need Help?
+If you have a question or feature request, [go ask the mailing list](https://groups.google.com/forum/#!forum/negroni-users). The GitHub issues for Negroni will be used exclusively for bug reports and pull requests.
+
+## Is Negroni a Framework?
+Negroni is **not** a framework. It is a library that is designed to work directly with net/http.
+
+## Routing?
+Negroni is BYOR (Bring your own Router). The Go community already has a number of great http routers available, Negroni tries to play well with all of them by fully supporting `net/http`. For instance, integrating with [Gorilla Mux](http://github.com/gorilla/mux) looks like so:
+
+~~~ go
+router := mux.NewRouter()
+router.HandleFunc("/", HomeHandler)
+
+n := negroni.New(Middleware1, Middleware2)
+// Or use a middleware with the Use() function
+n.Use(Middleware3)
+// router goes last
+n.UseHandler(router)
+
+n.Run(":3000")
+~~~
+
+## `negroni.Classic()`
+`negroni.Classic()` provides some default middleware that is useful for most applications:
+
+* `negroni.Recovery` - Panic Recovery Middleware.
+* `negroni.Logging` - Request/Response Logging Middleware.
+* `negroni.Static` - Static File serving under the "public" directory.
+
+This makes it really easy to get started with some useful features from Negroni.
+
+## Handlers
+Negroni provides a bidirectional middleware flow. This is done through the `negroni.Handler` interface:
+
+~~~ go
+type Handler interface {
+  ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)
+}
+~~~
+
+If a middleware hasn't already written to the ResponseWriter, it should call the next `http.HandlerFunc` in the chain to yield to the next middleware handler. This can be used for great good:
+
+~~~ go
+func MyMiddleware(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
+  // do some stuff before
+  next(rw, r)
+  // do some stuff after
+}
+~~~
+
+And you can map it to the handler chain with the `Use` function:
+
+~~~ go
+n := negroni.New()
+n.Use(negroni.HandlerFunc(MyMiddleware))
+~~~
+
+You can also map plain old `http.Handler`s:
+
+~~~ go
+n := negroni.New()
+
+mux := http.NewServeMux()
+// map your routes
+
+n.UseHandler(mux)
+
+n.Run(":3000")
+~~~
+
+## `Run()`
+Negroni has a convenience function called `Run`. `Run` takes an addr string identical to [http.ListenAndServe](http://golang.org/pkg/net/http#ListenAndServe).
+
+~~~ go
+n := negroni.Classic()
+// ...
+log.Fatal(http.ListenAndServe(":8080", n))
+~~~
+
+## Route Specific Middleware
+If you have a route group of routes that need specific middleware to be executed, you can simply create a new Negroni instance and use it as your route handler.
+
+~~~ go
+router := mux.NewRouter()
+adminRoutes := mux.NewRouter()
+// add admin routes here
+
+// Create a new negroni for the admin middleware
+router.Handle("/admin", negroni.New(
+  Middleware1,
+  Middleware2,
+  negroni.Wrap(adminRoutes),
+))
+~~~
+
+## Third Party Middleware
+
+Here is a current list of Negroni compatible middlware. Feel free to put up a PR linking your middleware if you have built one:
+
+
+| Middleware | Author | Description |
+| -----------|--------|-------------|
+| [RestGate](https://github.com/pjebs/restgate) | [Prasanga Siripala](https://github.com/pjebs) | Secure authentication for REST API endpoints |
+| [Graceful](https://github.com/stretchr/graceful) | [Tyler Bunnell](https://github.com/tylerb) | Graceful HTTP Shutdown |
+| [secure](https://github.com/unrolled/secure) | [Cory Jacobsen](https://github.com/unrolled) | Middleware that implements a few quick security wins |
+| [JWT Middleware](https://github.com/auth0/go-jwt-middleware) | [Auth0](https://github.com/auth0) | Middleware checks for a JWT on the `Authorization` header on incoming requests and decodes it|
+| [binding](https://github.com/mholt/binding) | [Matt Holt](https://github.com/mholt) | Data binding from HTTP requests into structs |
+| [logrus](https://github.com/meatballhat/negroni-logrus) | [Dan Buch](https://github.com/meatballhat) | Logrus-based logger |
+| [render](https://github.com/unrolled/render) | [Cory Jacobsen](https://github.com/unrolled) | Render JSON, XML and HTML templates |
+| [gorelic](https://github.com/jingweno/negroni-gorelic) | [Jingwen Owen Ou](https://github.com/jingweno) | New Relic agent for Go runtime |
+| [gzip](https://github.com/phyber/negroni-gzip) | [phyber](https://github.com/phyber) | GZIP response compression |
+| [oauth2](https://github.com/goincremental/negroni-oauth2) | [David Bochenski](https://github.com/bochenski) | oAuth2 middleware |
+| [sessions](https://github.com/goincremental/negroni-sessions) | [David Bochenski](https://github.com/bochenski) | Session Management |
+| [permissions2](https://github.com/xyproto/permissions2) | [Alexander Rødseth](https://github.com/xyproto) | Cookies, users and permissions |
+| [onthefly](https://github.com/xyproto/onthefly) | [Alexander Rødseth](https://github.com/xyproto) | Generate TinySVG, HTML and CSS on the fly |
+| [cors](https://github.com/rs/cors) | [Olivier Poitrey](https://github.com/rs) | [Cross Origin Resource Sharing](http://www.w3.org/TR/cors/) (CORS) support |
+| [xrequestid](https://github.com/pilu/xrequestid) | [Andrea Franz](https://github.com/pilu) | Middleware that assigns a random X-Request-Id header to each request |
+| [VanGoH](https://github.com/auroratechnologies/vangoh) | [Taylor Wrobel](https://github.com/twrobel3) | Configurable [AWS-Style](http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html) HMAC authentication middleware |
+| [stats](https://github.com/thoas/stats) | [Florent Messa](https://github.com/thoas) | Store information about your web application (response time, etc.) |
+
+## Examples
+[Alexander Rødseth](https://github.com/xyproto) created [mooseware](https://github.com/xyproto/mooseware), a skeleton for writing a Negroni middleware handler.
+
+## Live code reload?
+[gin](https://github.com/codegangsta/gin) and [fresh](https://github.com/pilu/fresh) both live reload negroni apps.
+
+## Essential Reading for Beginners of Go & Negroni
+
+* [Using a Context to pass information from middleware to end handler](http://elithrar.github.io/article/map-string-interface/)
+* [Understanding middleware](http://mattstauffer.co/blog/laravel-5.0-middleware-replacing-filters)
+
+## About
+
+Negroni is obsessively designed by none other than the [Code Gangsta](http://codegangsta.io/)
diff --git a/vendor/github.com/codegangsta/negroni/doc.go b/vendor/github.com/codegangsta/negroni/doc.go
new file mode 100644
index 00000000..24d6572c
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/doc.go
@@ -0,0 +1,25 @@
+// Package negroni is an idiomatic approach to web middleware in Go. It is tiny, non-intrusive, and encourages use of net/http Handlers.
+//
+// If you like the idea of Martini, but you think it contains too much magic, then Negroni is a great fit.
+//
+// For a full guide visit http://github.com/codegangsta/negroni
+//
+//  package main
+//
+//  import (
+//    "github.com/codegangsta/negroni"
+//    "net/http"
+//    "fmt"
+//  )
+//
+//  func main() {
+//    mux := http.NewServeMux()
+//    mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
+//      fmt.Fprintf(w, "Welcome to the home page!")
+//    })
+//
+//    n := negroni.Classic()
+//    n.UseHandler(mux)
+//    n.Run(":3000")
+//  }
+package negroni
diff --git a/vendor/github.com/codegangsta/negroni/logger.go b/vendor/github.com/codegangsta/negroni/logger.go
new file mode 100644
index 00000000..e3828ef3
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/logger.go
@@ -0,0 +1,29 @@
+package negroni
+
+import (
+	"log"
+	"net/http"
+	"os"
+	"time"
+)
+
+// Logger is a middleware handler that logs the request as it goes in and the response as it goes out.
+type Logger struct {
+	// Logger inherits from log.Logger used to log messages with the Logger middleware
+	*log.Logger
+}
+
+// NewLogger returns a new Logger instance
+func NewLogger() *Logger {
+	return &Logger{log.New(os.Stdout, "[negroni] ", 0)}
+}
+
+func (l *Logger) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
+	start := time.Now()
+	l.Printf("Started %s %s", r.Method, r.URL.Path)
+
+	next(rw, r)
+
+	res := rw.(ResponseWriter)
+	l.Printf("Completed %v %s in %v", res.Status(), http.StatusText(res.Status()), time.Since(start))
+}
diff --git a/vendor/github.com/codegangsta/negroni/negroni.go b/vendor/github.com/codegangsta/negroni/negroni.go
new file mode 100644
index 00000000..57d15eb7
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/negroni.go
@@ -0,0 +1,129 @@
+package negroni
+
+import (
+	"log"
+	"net/http"
+	"os"
+)
+
+// Handler handler is an interface that objects can implement to be registered to serve as middleware
+// in the Negroni middleware stack.
+// ServeHTTP should yield to the next middleware in the chain by invoking the next http.HandlerFunc
+// passed in.
+//
+// If the Handler writes to the ResponseWriter, the next http.HandlerFunc should not be invoked.
+type Handler interface {
+	ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)
+}
+
+// HandlerFunc is an adapter to allow the use of ordinary functions as Negroni handlers.
+// If f is a function with the appropriate signature, HandlerFunc(f) is a Handler object that calls f.
+type HandlerFunc func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)
+
+func (h HandlerFunc) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
+	h(rw, r, next)
+}
+
+type middleware struct {
+	handler Handler
+	next    *middleware
+}
+
+func (m middleware) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
+	m.handler.ServeHTTP(rw, r, m.next.ServeHTTP)
+}
+
+// Wrap converts a http.Handler into a negroni.Handler so it can be used as a Negroni
+// middleware. The next http.HandlerFunc is automatically called after the Handler
+// is executed.
+func Wrap(handler http.Handler) Handler {
+	return HandlerFunc(func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
+		handler.ServeHTTP(rw, r)
+		next(rw, r)
+	})
+}
+
+// Negroni is a stack of Middleware Handlers that can be invoked as an http.Handler.
+// Negroni middleware is evaluated in the order that they are added to the stack using
+// the Use and UseHandler methods.
+type Negroni struct {
+	middleware middleware
+	handlers   []Handler
+}
+
+// New returns a new Negroni instance with no middleware preconfigured.
+func New(handlers ...Handler) *Negroni {
+	return &Negroni{
+		handlers:   handlers,
+		middleware: build(handlers),
+	}
+}
+
+// Classic returns a new Negroni instance with the default middleware already
+// in the stack.
+//
+// Recovery - Panic Recovery Middleware
+// Logger - Request/Response Logging
+// Static - Static File Serving
+func Classic() *Negroni {
+	return New(NewRecovery(), NewLogger(), NewStatic(http.Dir("public")))
+}
+
+func (n *Negroni) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
+	n.middleware.ServeHTTP(NewResponseWriter(rw), r)
+}
+
+// Use adds a Handler onto the middleware stack. Handlers are invoked in the order they are added to a Negroni.
+func (n *Negroni) Use(handler Handler) {
+	n.handlers = append(n.handlers, handler)
+	n.middleware = build(n.handlers)
+}
+
+// UseFunc adds a Negroni-style handler function onto the middleware stack.
+func (n *Negroni) UseFunc(handlerFunc func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)) {
+	n.Use(HandlerFunc(handlerFunc))
+}
+
+// UseHandler adds a http.Handler onto the middleware stack. Handlers are invoked in the order they are added to a Negroni.
+func (n *Negroni) UseHandler(handler http.Handler) {
+	n.Use(Wrap(handler))
+}
+
+// UseHandler adds a http.HandlerFunc-style handler function onto the middleware stack.
+func (n *Negroni) UseHandlerFunc(handlerFunc func(rw http.ResponseWriter, r *http.Request)) {
+	n.UseHandler(http.HandlerFunc(handlerFunc))
+}
+
+// Run is a convenience function that runs the negroni stack as an HTTP
+// server. The addr string takes the same format as http.ListenAndServe.
+func (n *Negroni) Run(addr string) {
+	l := log.New(os.Stdout, "[negroni] ", 0)
+	l.Printf("listening on %s", addr)
+	l.Fatal(http.ListenAndServe(addr, n))
+}
+
+// Returns a list of all the handlers in the current Negroni middleware chain.
+func (n *Negroni) Handlers() []Handler {
+	return n.handlers
+}
+
+func build(handlers []Handler) middleware {
+	var next middleware
+
+	if len(handlers) == 0 {
+		return voidMiddleware()
+	} else if len(handlers) > 1 {
+		next = build(handlers[1:])
+	} else {
+		next = voidMiddleware()
+	}
+
+	return middleware{handlers[0], &next}
+}
+
+func voidMiddleware() middleware {
+	return middleware{
+		HandlerFunc(func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {}),
+		&middleware{},
+	}
+}
diff --git a/vendor/github.com/codegangsta/negroni/recovery.go b/vendor/github.com/codegangsta/negroni/recovery.go
new file mode 100644
index 00000000..d790cade
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/recovery.go
@@ -0,0 +1,46 @@
+package negroni
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"runtime"
+)
+
+// Recovery is a Negroni middleware that recovers from any panics and writes a 500 if there was one.
+type Recovery struct {
+	Logger     *log.Logger
+	PrintStack bool
+	StackAll   bool
+	StackSize  int
+}
+
+// NewRecovery returns a new instance of Recovery
+func NewRecovery() *Recovery {
+	return &Recovery{
+		Logger:     log.New(os.Stdout, "[negroni] ", 0),
+		PrintStack: true,
+		StackAll:   false,
+		StackSize:  1024 * 8,
+	}
+}
+
+func (rec *Recovery) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
+	defer func() {
+		if err := recover(); err != nil {
+			rw.WriteHeader(http.StatusInternalServerError)
+			stack := make([]byte, rec.StackSize)
+			stack = stack[:runtime.Stack(stack, rec.StackAll)]
+
+			f := "PANIC: %s\n%s"
+			rec.Logger.Printf(f, err, stack)
+
+			if rec.PrintStack {
+				fmt.Fprintf(rw, f, err, stack)
+			}
+		}
+	}()
+
+	next(rw, r)
+}
diff --git a/vendor/github.com/codegangsta/negroni/response_writer.go b/vendor/github.com/codegangsta/negroni/response_writer.go
new file mode 100644
index 00000000..ea86a265
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/response_writer.go
@@ -0,0 +1,96 @@
+package negroni
+
+import (
+	"bufio"
+	"fmt"
+	"net"
+	"net/http"
+)
+
+// ResponseWriter is a wrapper around http.ResponseWriter that provides extra information about
+// the response. It is recommended that middleware handlers use this construct to wrap a responsewriter
+// if the functionality calls for it.
+type ResponseWriter interface {
+	http.ResponseWriter
+	http.Flusher
+	// Status returns the status code of the response or 0 if the response has not been written.
+	Status() int
+	// Written returns whether or not the ResponseWriter has been written.
+	Written() bool
+	// Size returns the size of the response body.
+	Size() int
+	// Before allows for a function to be called before the ResponseWriter has been written to. This is
+	// useful for setting headers or any other operations that must happen before a response has been written.
+	Before(func(ResponseWriter))
+}
+
+type beforeFunc func(ResponseWriter)
+
+// NewResponseWriter creates a ResponseWriter that wraps an http.ResponseWriter
+func NewResponseWriter(rw http.ResponseWriter) ResponseWriter {
+	return &responseWriter{rw, 0, 0, nil}
+}
+
+type responseWriter struct {
+	http.ResponseWriter
+	status      int
+	size        int
+	beforeFuncs []beforeFunc
+}
+
+func (rw *responseWriter) WriteHeader(s int) {
+	rw.status = s
+	rw.callBefore()
+	rw.ResponseWriter.WriteHeader(s)
+}
+
+func (rw *responseWriter) Write(b []byte) (int, error) {
+	if !rw.Written() {
+		// The status will be StatusOK if WriteHeader has not been called yet
+		rw.WriteHeader(http.StatusOK)
+	}
+	size, err := rw.ResponseWriter.Write(b)
+	rw.size += size
+	return size, err
+}
+
+func (rw *responseWriter) Status() int {
+	return rw.status
+}
+
+func (rw *responseWriter) Size() int {
+	return rw.size
+}
+
+func (rw *responseWriter) Written() bool {
+	return rw.status != 0
+}
+
+func (rw *responseWriter) Before(before func(ResponseWriter)) {
+	rw.beforeFuncs = append(rw.beforeFuncs, before)
+}
+
+func (rw *responseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	hijacker, ok := rw.ResponseWriter.(http.Hijacker)
+	if !ok {
+		return nil, nil, fmt.Errorf("the ResponseWriter doesn't support the Hijacker interface")
+	}
+	return hijacker.Hijack()
+}
+
+func (rw *responseWriter) CloseNotify() <-chan bool {
+	return rw.ResponseWriter.(http.CloseNotifier).CloseNotify()
+}
+
+func (rw *responseWriter) callBefore() {
+	for i := len(rw.beforeFuncs) - 1; i >= 0; i-- {
+		rw.beforeFuncs[i](rw)
+	}
+}
+
+func (rw *responseWriter) Flush() {
+	flusher, ok := rw.ResponseWriter.(http.Flusher)
+	if ok {
+		flusher.Flush()
+	}
+}
diff --git a/vendor/github.com/codegangsta/negroni/static.go b/vendor/github.com/codegangsta/negroni/static.go
new file mode 100644
index 00000000..c5af4e68
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/static.go
@@ -0,0 +1,84 @@
+package negroni
+
+import (
+	"net/http"
+	"path"
+	"strings"
+)
+
+// Static is a middleware handler that serves static files in the given directory/filesystem.
+type Static struct {
+	// Dir is the directory to serve static files from
+	Dir http.FileSystem
+	// Prefix is the optional prefix used to serve the static directory content
+	Prefix string
+	// IndexFile defines which file to serve as index if it exists.
+	IndexFile string
+}
+
+// NewStatic returns a new instance of Static
+func NewStatic(directory http.FileSystem) *Static {
+	return &Static{
+		Dir:       directory,
+		Prefix:    "",
+		IndexFile: "index.html",
+	}
+}
+
+func (s *Static) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
+	if r.Method != "GET" && r.Method != "HEAD" {
+		next(rw, r)
+		return
+	}
+	file := r.URL.Path
+	// if we have a prefix, filter requests by stripping the prefix
+	if s.Prefix != "" {
+		if !strings.HasPrefix(file, s.Prefix) {
+			next(rw, r)
+			return
+		}
+		file = file[len(s.Prefix):]
+		if file != "" && file[0] != '/' {
+			next(rw, r)
+			return
+		}
+	}
+	f, err := s.Dir.Open(file)
+	if err != nil {
+		// discard the error?
+		next(rw, r)
+		return
+	}
+	defer f.Close()
+
+	fi, err := f.Stat()
+	if err != nil {
+		next(rw, r)
+		return
+	}
+
+	// try to serve index file
+	if fi.IsDir() {
+		// redirect if missing trailing slash
+		if !strings.HasSuffix(r.URL.Path, "/") {
+			http.Redirect(rw, r, r.URL.Path+"/", http.StatusFound)
+			return
+		}
+
+		file = path.Join(file, s.IndexFile)
+		f, err = s.Dir.Open(file)
+		if err != nil {
+			next(rw, r)
+			return
+		}
+		defer f.Close()
+
+		fi, err = f.Stat()
+		if err != nil || fi.IsDir() {
+			next(rw, r)
+			return
+		}
+	}
+
+	http.ServeContent(rw, r, file, fi.ModTime(), f)
+}
diff --git a/vendor/github.com/codegangsta/negroni/translations/README_pt_br.md b/vendor/github.com/codegangsta/negroni/translations/README_pt_br.md
new file mode 100644
index 00000000..d5b02fa3
--- /dev/null
+++ b/vendor/github.com/codegangsta/negroni/translations/README_pt_br.md
@@ -0,0 +1,170 @@
+# Negroni [![GoDoc](https://godoc.org/github.com/codegangsta/negroni?status.svg)](http://godoc.org/github.com/codegangsta/negroni) [![wercker status](https://app.wercker.com/status/13688a4a94b82d84a0b8d038c4965b61/s "wercker status")](https://app.wercker.com/project/bykey/13688a4a94b82d84a0b8d038c4965b61)
+
+Negroni é uma abordagem idiomática para middleware web em Go. É pequeno, não intrusivo, e incentiva uso da biblioteca `net/http`.
+
+Se gosta da idéia do [Martini](http://github.com/go-martini/martini), mas acha que contém muita mágica, então Negroni é ideal.
+
+## Começando
+
+Depois de instalar Go e definir seu [GOPATH](http://golang.org/doc/code.html#GOPATH), criar seu primeirto arquivo `.go`. Iremos chamá-lo `server.go`.
+
+~~~ go
+package main
+
+import (
+  "github.com/codegangsta/negroni"
+  "net/http"
+  "fmt"
+)
+
+func main() {
+  mux := http.NewServeMux()
+  mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
+    fmt.Fprintf(w, "Welcome to the home page!")
+  })
+
+  n := negroni.Classic()
+  n.UseHandler(mux)
+  n.Run(":3000")
+}
+~~~
+
+Depois instale o pacote Negroni (**go 1.1** ou superior)
+~~~
+go get github.com/codegangsta/negroni
+~~~
+
+Depois execute seu servidor:
+~~~
+go run server.go
+~~~
+
+Agora terá um servidor web Go net/http rodando em `localhost:3000`.
+
+## Precisa de Ajuda?
+Se você tem uma pergunta ou pedido de recurso,[go ask the mailing list](https://groups.google.com/forum/#!forum/negroni-users). O Github issues para o Negroni será usado exclusivamente para Reportar bugs e pull requests.
+
+## Negroni é um Framework?
+Negroni **não** é a framework. É uma biblioteca que é desenhada para trabalhar diretamente com net/http.
+
+## Roteamento?
+Negroni é TSPR(Traga seu próprio Roteamento). A comunidade Go já tem um grande número de roteadores http disponíveis, Negroni tenta rodar bem com todos eles pelo suporte total `net/http`/ Por exemplo, a integração com [Gorilla Mux](http://github.com/gorilla/mux) se parece com isso:
+
+~~~ go
+router := mux.NewRouter()
+router.HandleFunc("/", HomeHandler)
+
+n := negroni.New(Middleware1, Middleware2)
+// Or use a middleware with the Use() function
+n.Use(Middleware3)
+// router goes last
+n.UseHandler(router)
+
+n.Run(":3000")
+~~~
+
+## `negroni.Classic()`
+`negroni.Classic()`  fornece alguns middlewares padrão que são úteis para maioria das aplicações:
+
+* `negroni.Recovery` - Panic Recovery Middleware.
+* `negroni.Logging` - Request/Response Logging Middleware.
+* `negroni.Static` - Static File serving under the "public" directory.
+
+Isso torna muito fácil começar com alguns recursos úteis do Negroni.
+
+## Handlers
+Negroni fornece um middleware de fluxo bidirecional. Isso é feito através da interface `negroni.Handler`:
+
+~~~ go
+type Handler interface {
+  ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)
+}
+~~~
+
+Se um middleware não tenha escrito o ResponseWriter, ele deve chamar a próxima `http.HandlerFunc` na cadeia para produzir o próximo handler middleware. Isso pode ser usado muito bem:
+
+~~~ go
+func MyMiddleware(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
+  // do some stuff before
+  next(rw, r)
+  // do some stuff after
+}
+~~~
+
+E pode mapear isso para a cadeia de handler com a função `Use`:
+
+~~~ go
+n := negroni.New()
+n.Use(negroni.HandlerFunc(MyMiddleware))
+~~~
+
+Você também pode mapear `http.Handler` antigos:
+
+~~~ go
+n := negroni.New()
+
+mux := http.NewServeMux()
+// map your routes
+
+n.UseHandler(mux)
+
+n.Run(":3000")
+~~~
+
+## `Run()`
+Negroni tem uma função de conveniência chamada `Run`. `Run` pega um endereço de string idêntico para [http.ListenAndServe](http://golang.org/pkg/net/http#ListenAndServe).
+
+~~~ go
+n := negroni.Classic()
+// ...
+log.Fatal(http.ListenAndServe(":8080", n))
+~~~
+
+## Middleware para Rotas Específicas
+Se você tem um grupo de rota com rotas que precisam ser executadas por um middleware específico, pode simplesmente criar uma nova instância de Negroni e usar no seu Manipulador de rota.
+
+~~~ go
+router := mux.NewRouter()
+adminRoutes := mux.NewRouter()
+// add admin routes here
+
+// Criar um middleware negroni para admin
+router.Handle("/admin", negroni.New(
+  Middleware1,
+  Middleware2,
+  negroni.Wrap(adminRoutes),
+))
+~~~
+
+## Middleware de Terceiros
+
+Aqui está uma lista atual de Middleware Compatíveis com Negroni. Sinta se livre para mandar um PR vinculando seu middleware se construiu um:
+
+
+| Middleware | Autor | Descrição |
+| -----------|--------|-------------|
+| [Graceful](https://github.com/stretchr/graceful) | [Tyler Bunnell](https://github.com/tylerb) | Graceful HTTP Shutdown |
+| [secure](https://github.com/unrolled/secure) | [Cory Jacobsen](https://github.com/unrolled) |  Implementa rapidamente itens de segurança.|
+| [binding](https://github.com/mholt/binding) | [Matt Holt](https://github.com/mholt) | Handler para mapeamento/validação de um request a estrutura. |
+| [logrus](https://github.com/meatballhat/negroni-logrus) | [Dan Buch](https://github.com/meatballhat) | Logrus-based logger |
+| [render](https://github.com/unrolled/render) | [Cory Jacobsen](https://github.com/unrolled) | Pacote para renderizar JSON, XML, e templates HTML. |
+| [gorelic](https://github.com/jingweno/negroni-gorelic) | [Jingwen Owen Ou](https://github.com/jingweno) | New Relic agent for Go runtime |
+| [gzip](https://github.com/phyber/negroni-gzip) | [phyber](https://github.com/phyber) | Handler para adicionar compreção gzip para as requisições |
+| [oauth2](https://github.com/goincremental/negroni-oauth2) | [David Bochenski](https://github.com/bochenski) | Handler que prove sistema de login OAuth 2.0 para aplicações Martini. Google Sign-in, Facebook Connect e Github login são suportados. |
+| [sessions](https://github.com/goincremental/negroni-sessions) | [David Bochenski](https://github.com/bochenski) | Handler que provê o serviço de sessão. |
+| [permissions](https://github.com/xyproto/permissions) | [Alexander Rødseth](https://github.com/xyproto) | Cookies, usuários e permissões. |
+| [onthefly](https://github.com/xyproto/onthefly) | [Alexander Rødseth](https://github.com/xyproto) | Pacote para gerar TinySVG, HTML e CSS em tempo real. |
+
+## Exemplos
+[Alexander Rødseth](https://github.com/xyproto) criou [mooseware](https://github.com/xyproto/mooseware), uma estrutura para escrever um handler middleware Negroni.
+
+## Servidor com autoreload?
+[gin](https://github.com/codegangsta/gin) e [fresh](https://github.com/pilu/fresh) são aplicativos para autoreload do Negroni.
+
+## Leitura Essencial para Iniciantes em Go & Negroni
+* [Usando um contexto para passar informação de um middleware para o manipulador final](http://elithrar.github.io/article/map-string-interface/)
+* [Entendendo middleware](http://mattstauffer.co/blog/laravel-5.0-middleware-replacing-filters)
+
+
+## Sobre
+Negroni é obsessivamente desenhado por ninguém menos que  [Code Gangsta](http://codegangsta.io/)