.main-pitch cosmetic overhaul

Alright, this appears hacky, but it's fairly precise -- we want
.main-pitch to have essentially the page's width yet we want it
inside the limited-width .page-content.
Cleaner handling of .main-pitch width

Decdied to move .page-content out of the main layout. You'll now
need to extend .page-content on containers as required, but that's
trivial enough.
Refined twitter link aesthetics

Consequently, this removes the follow/unfollow functionality
Refined favicon

Also switched to a 32x32, cuz screw IE
Merge pull request #26 from csampson/develop

Various aesthetic overhauls