Fix CPU issues by removing constant digesting. We do so by:

- Fixing the title and description (meta) to only respond to a rootScope watch, rather than using a timer
  - Change the tabs listening code to be completely self contained

static/js/services/util-service.js

@@ -76,18 +76,5 @@ angular.module('quay').factory('UtilService', ['$sanitize', function($sanitize)
     return $sanitize(utilService.escapeHtmlString(text));
   };
 
-  utilService.clickElement = function(el) {
-    // From: http://stackoverflow.com/questions/16802795/click-not-working-in-mocha-phantomjs-on-certain-elements
-    var ev = document.createEvent("MouseEvent");
-    ev.initMouseEvent(
-      "click",
-       true /* bubble */, true /* cancelable */,
-       window, null,
-       0, 0, 0, 0, /* coordinates */
-       false, false, false, false, /* modifier keys */
-       0 /*left*/, null);
-    el.dispatchEvent(ev);
-  };
-
   return utilService;
 }]);