Minor HTML cleanup

I have my reservations about base.css.  I dislike the float: left on all divs, as it is causing a lot of needing clear-lefts and spans just to counteract it all.  But for now, I have tried to minimize any use of classes so there is less pain in refactoring later.
GET Profile implemented

User's profile page now shows his/her first/last name, or username, plus About Me content.  Shows some placeholder text if About Me isn't filled in yet.