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

static/js/directives/onresize.js

@@ -0,0 +1,20 @@
+/**
+ * Adds an onresize event attribtue that gets invokved when the size of the window changes.
+ */
+angular.module('quay').directive('onresize', function ($window, $parse) {
+  return function (scope, element, attr) {
+    var fn = $parse(attr.onresize);
+
+    var notifyResized = function() {
+      scope.$apply(function () {
+        fn(scope);
+      });
+    };
+
+    angular.element($window).on('resize', null, notifyResized);
+
+    scope.$on('$destroy', function() {
+      angular.element($window).off('resize', null, notifyResized);
+    });
+  };
+});