Replace badge to labels, because twbs3 doesn't supprot colored badges

before
![wz2h](https://f.cloud.github.com/assets/1488195/2102174/736c1234-8f5b-11e3-899c-7ec97977d8c3.png)
after 
![n7mbw5i](https://f.cloud.github.com/assets/1488195/2102179/7ee7ff9c-8f5b-11e3-81db-b1a5d8e8a013.png)