title: Rails can't include AngularJS
body: <p>I'm following this <a href="http://rubydoc.info/gems/angularjs-rails/1.0.1.1/frames" rel="noreferrer">tutorial</a> and although adding it to the Gem file and bundle installing it works fine. The moment I try to include it into application.js, the file, I get the following error while loading it:</p>
  
  <pre><code>throw Error("Sprockets::FileNotFound: couldn't find file 'angular'\n  (in /my/path/to/rails/app/assets/javascripts/application.js:13)")
  </code></pre>
  
  <p>application.js file looks like so (starting with line 13):</p>
  
  <pre><code>//= require angular
  //= require jquery
  //= require jquery_ujs
  //= require jquery.ui.autocomplete
  //= require bootstrap
  //= require pusher.min.js
  //= require pusher_setup
  //= require_directory .
  </code></pre>
  
  <p>Therefore, my question is how can I successfully include AngularJS into my Rails project? </p>
  
  <p>I'm currently using Rails 3.2.2, and Ruby 1.9.3.</p>