More tweaks (read: I am the man!)

A lot of these tweaks were inspired by trying to maximize single-page posts, especially from the Blogger article.

+ Changed the yellow title bar to a link
+ added a 'home' button top left
+ added a 'top' button bottom right (really just a home button. too lazy to add an anchor.)
+ FINALLY fixed the gap problem on single-page posts (the answer was 'valign')
+ changed the title (the one browsers incorporate)
+ changed to 'smart page titles'
+ added 'previously, on 'interact'
+ fixed typography at bottom

Small improvements that you may not notice, but I'm glad they're fixed.