Upgrade queuing app to use backbone.js
Convert CSS to SASS.

Libraries updated
-----------------

jquery.autosize.min.js 1.18.9 ==> 1.18.12
bootstrap-maxlength.min.js 1.5.4 ==> 1.5.7
bootstrap-rating-input.min.js ?? ==> 0.2.5

jquery.timeTo.min.js
--------------------
Changed $...stop().aimate(...) to $...stop(true, true).animate to stop clock animations queuing up when the app tab is not active.