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

static/js/directives/ng-blur.js

@@ -0,0 +1,7 @@
+angular.module('quay').directive('ngBlur', function() {
+  return function( scope, elem, attrs ) {
+    elem.bind('blur', function() {
+      scope.$apply(attrs.ngBlur);
+    });
+  };
+});