版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/legofy/0.1.13/legofy.js
- https://cdn.bootcdn.net/ajax/libs/legofy/0.1.13/legofy.min.js
- https://cdn.bootcdn.net/ajax/libs/legofy/0.1.13/legofy.min.js.map
Legofy your images with retina support using SVG.