proxy: update vendor

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>

vendor/github.com/jimstudt/http-authentication/basic/README.md

@@ -0,0 +1,65 @@
+# auth/htpasswd [![GoDoc](https://godoc.org/github.com/jimstudt/http-authentication/basic?status.png)](http://godoc.org/github.com/jimstudt/http-authentication/basic)
+
+Authenticate using Apache-style htpasswd files and HTTP Basic Authentication.
+
+`htpasswd` has supported a number of different password hashing schemes over the
+decades. Most common and sane ones are supported directly. For some you will need
+to add another package.
+
+| Style | Status |
+|-------|--------|
+| plain | yes+   |
+| md5   | yes    |
+| sha   | yes    |
+| crypt | no (conflicts with plain)     |
+| bcrypt | no (can add with another package)   |
+
+The standard set of systems will use *Plain*, *Sha*, and *MD5* systems while filtering out *bcrypt*.
+Because of its complexity, *bcrypt* will be in another package which you can import and
+add if you need it. *Plain* accepts both Apache style plain text and nginx style where the 
+password is preceded by {PLAIN}.
+
+## Usage
+
+~~~ go
+import (
+  "github.com/codegangsta/martini"
+  "github.com/jimstudt/http-authentication/basic"
+  "log"
+)
+
+func main() {
+  m := martini.Classic()
+
+  pw,err := basic.New("My Realm", "./my-htpasswd-file", htpasswd.DefaultSystems, nil)
+  if ( err != nil) {
+    log.Fatalf("Unable to read my htpassword file: %s", err.Error())
+  }
+
+  // authenticate every request
+  m.Use( pw.ServeHTTP)
+
+  // You will also want to call pw.Reload(nil) to reprocess the password file when it changes.
+
+  // You can use pw.ReloadOn( syscall.SIGHUP, nil ) to make it automatically
+  // reload on a HUP signal.
+
+  // And those 'nil' arguments are where you pass a function to be notified about illegally 
+  // formatted entries, or unsupported hash systems. See the API documents.
+
+  // If you only want to authenticate some requests, then it goes like this...
+  //    m.Get("/secure/thing", pw.ServeHTTP, myRealHandler)
+  // ... if pw.ServeHTTP does the 401 then your handler will not be called
+ 
+  m.Run()
+
+}
+~~~
+
+## API Documentation
+
+The API is documented using godoc and also available at [godoc.org](http://godoc.org/github.com/jimstudt/http-authentication/basic)
+~~~
+
+
+