title: Search all .js files inside folder and subfolders
body: <p>I'm using <code>grunt</code> to search all my <code>.js</code> files in order to create documentation and I want it to search all the files inside <code>web/assets/js/</code>, so I made it like this:</p>
  
  <pre><code>ngdocs: {
    all: ['web/assets/js/*.js']
  },
  </code></pre>
  
  <p>However I found out that this doesn't include the <code>.js</code> files inside the subfolders. </p>
  
  <p>Is there a way to make it look inside those subfolders or do I have to specify all of them in the gruntfile?</p>