Code cleanup part #1: move all the services and directive JS code in the app.js file into its own files

static/js/directives/ui/trigger-description.js

@@ -0,0 +1,21 @@
+/**
+ * An element which displays information about a build trigger.
+ */
+angular.module('quay').directive('triggerDescription', function () {
+  var directiveDefinitionObject = {
+    priority: 0,
+    templateUrl: '/static/directives/trigger-description.html',
+    replace: false,
+    transclude: false,
+    restrict: 'C',
+    scope: {
+      'trigger': '=trigger',
+      'short': '=short'
+    },
+    controller: function($scope, $element, KeyService, TriggerService) {
+      $scope.KeyService = KeyService;
+      $scope.TriggerService = TriggerService;
+    }
+  };
+  return directiveDefinitionObject;
+});