版本：1.4.0-beta.4
- https://cdn.bootcdn.net/ajax/libs/ember.js/1.4.0-beta.4/ember.debug.js
- https://cdn.bootcdn.net/ajax/libs/ember.js/1.4.0-beta.4/ember.js
- https://cdn.bootcdn.net/ajax/libs/ember.js/1.4.0-beta.4/ember.min.js
- https://cdn.bootcdn.net/ajax/libs/ember.js/1.4.0-beta.4/ember.prod.js