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/twitter-view.js

@@ -0,0 +1,22 @@
+/**
+ * An element which displays a twitter message and author information.
+ */
+angular.module('quay').directive('twitterView', function () {
+  var directiveDefinitionObject = {
+    priority: 0,
+    templateUrl: '/static/directives/twitter-view.html',
+    replace: false,
+    transclude: true,
+    restrict: 'C',
+    scope: {
+      'avatarUrl': '@avatarUrl',
+      'authorName': '@authorName',
+      'authorUser': '@authorUser',
+      'messageUrl': '@messageUrl',
+      'messageDate': '@messageDate'
+    },
+    controller: function($scope, $element) {
+    }
+  };
+  return directiveDefinitionObject;
+});