Added "AngularJS + Cloud Endpoint" demo app to the project list.

Sample application for using AngularJS backed with a Cloud Endpoint on the Google App Engine. Show an editable list of the last 5 published items, similar to a TODO app. Use the ngResource module for RESTful interaction. Intended as a learning tool, demo, or seed for App Engine backed Angular apps (including full tests).

Live version:

https://angular-seed.appspot.com