icon font problem in ratchet.min.css
Hello , I download the files from [http://cnratchet.com](url) , and i find a bug in ratchet.min.css , but it works if use ratchet.css. The images show the bug.
![css style](https://cloud.githubusercontent.com/assets/6176392/14059192/283d1ab2-f375-11e5-9a8f-b1c9fb4d2dfe.png)
![show](https://cloud.githubusercontent.com/assets/6176392/14059193/28c53082-f375-11e5-81a6-584e073b8f54.png)
