版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/backbone.babysitter/1.0.0/backbone.babysitter.js
- https://cdn.bootcdn.net/ajax/libs/backbone.babysitter/1.0.0/backbone.babysitter.min.js
- https://cdn.bootcdn.net/ajax/libs/backbone.babysitter/1.0.0/backbone.babysitter.min.js.map