fix(ngScenario): correctly disable animations for end 2 end tests

Author: petebacondarwin

src/ngScenario/Application.js

@@ -70,15 +70,10 @@ angular.scenario.Application.prototype.navigateTo = function(url, loadFn, errorF
 
         if ($window.angular) {
           // Disable animations
-
-          // TODO(i): this doesn't disable javascript animations
-          //          we don't need that for our tests, but it should be done
           $window.angular.resumeBootstrap([['$provide', function($provide) {
-            $provide.decorator('$sniffer', function($delegate) {
-              $delegate.transitions = false;
-              $delegate.animations = false;
-              return $delegate;
-            });
+            return ['$animate', function($animate) {
+              $animate.enabled(false);
+            }];
           }]]);
         }