Goodlooking styles for user groups

Applies to user edit page and user profile page.

![image](https://f.cloud.github.com/assets/1009926/1490954/8dd49012-47a1-11e3-9354-a8882489840d.png)

![image](https://f.cloud.github.com/assets/1009926/1490955/9762b6cc-47a1-11e3-84ae-6d3090a95697.png)