User settings page

change user settings page to follow the mock up design. add team name and homepage url modification.

this is related to issue #112

the current implementation looks like this:

![screen shot 2014-03-10 at 12 09 23 am](https://f.cloud.github.com/assets/1774203/2368393/69f56648-a7a6-11e3-8361-a6d1c04da2cf.png)