Travis Image in README

Author: samtstern

README.md

@@ -1,5 +1,7 @@
 # FirebaseUI for Android — UI Bindings for Firebase
 
+[![Build Status](https://travis-ci.org/samtstern/FirebaseUI-Android.svg?branch=master)](https://travis-ci.org/samtstern/FirebaseUI-Android)
+
 FirebaseUI is an open-source library for Android that allows you to 
 quickly connect common UI elements to [Firebase](https://firebase.google.com) 
 APIs like the Realtime Database or Firebase Authentication.
@@ -101,4 +103,4 @@ accept your pull requests.
 1. Ensure that your code adheres to the existing style of the library to which
    you are contributing.
 1. Ensure that your code has an appropriate set of unit tests which all pass.
-1. Submit a pull request and cc @puf or @mcdonamp
+1. Submit a pull request and cc @puf or @mcdonamp