[Bug 879052] Adding new styles to profile detail & edit page.

See the following two sketches for reference from [Bug 876928](https://bugzilla.mozilla.org/show_bug.cgi?id=876928):

[Profile detail sketch](https://bug876928.bugzilla.mozilla.org/attachment.cgi?id=755186) 
[Profile edit/create sketch](https://bug876928.bugzilla.mozilla.org/attachment.cgi?id=755185)

Note that there are a few things in the profile detail layout that are not part of the sketch, but that need to be in the page to get tests to pass (e.g. "Your Profile", "Mozillian Profile" message at the top of the page).  

I also made some fixes to tests in order for them to work with the new layout. There will most likely be some breakage due to some restructuring of the page itself.