Cleaning up apps codelab

chrome/common/extensions/docs/templates/private/footer.html

 <div id="gc-footer">
   <button id="send-feedback">Send Feedback</button>
   <div class="text">
     <p>
       Except as otherwise <a href="http://code.google.com/policies.html#restrictions">noted</a>,
       the content of this page is licensed under the <a rel="license" href="http://creativecommons.org/licenses/by/3.0/">Creative Commons
       Attribution 3.0 License</a>, and code samples are licensed under the
       <a rel="license" href="http://code.google.com/google_bsd_license.html">BSD License</a>.
     </p>
     <p>
       ©2012 Google
     </p>
     <script src="{{static}}/js/branch.js" type="text/javascript"></script>
     <script src="{{static}}/js/popup.js" type="text/javascript"></script>
     <script src="{{static}}/js/prettify.js" type="text/javascript"></script>
     <script src="{{static}}/js/scroll.js" type="text/javascript"></script>
     <script src="{{static}}/js/sidebar.js" type="text/javascript"></script>
+    <script src="{{static}}/js/tabs.js" type="text/javascript"></script>
     <script>
       (function() {
         // Auto syntax highlight all pre tags.
         var preElements = document.getElementsByTagName('pre');
         for (var i = 0; i < preElements.length; i++)
           preElements[i].classList.add('prettyprint');
         prettyPrint();
       })();
     </script>
     <script src="https://www.google-analytics.com/urchin.js" type="text/javascript"></script>
@@ skipping 18 matching lines @@
     <script type="text/javascript" src="//www.gstatic.com/feedback/api.js"></script>
     <script type="text/javascript">
       (function() {
        document.getElementById('send-feedback').addEventListener('click', function() {
          userfeedback.api.startFeedback({ productId: 86265 });
        });
       })();
     </script>
   </div>
 </div>