版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/js-data-firebase/3.2.1/js-data-firebase.js
- https://cdn.bootcdn.net/ajax/libs/js-data-firebase/3.2.1/js-data-firebase.js.map
- https://cdn.bootcdn.net/ajax/libs/js-data-firebase/3.2.1/js-data-firebase.min.js
- https://cdn.bootcdn.net/ajax/libs/js-data-firebase/3.2.1/js-data-firebase.min.js.map