Redesign profile page and port to Bootstrap

to do:
- [x] profile sidebar
- [x] mention facebox
- [x] /people/guid/contacts
- [x] adapt tests

![people view](https://cloud.githubusercontent.com/assets/3798614/4350071/9f7dcd6e-41d4-11e4-8ac8-316e5c1fd3b5.png)
Do you have anything specific in mind to get rid of that? There is another `if @aspect` in https://github.com/diaspora/diaspora/blob/develop/app/views/contacts/_header.html.haml#L2

In both cases we only want to display something if the contacts view gets a specific aspect.