Move all menu items into main action bar or overflow menu

We were using a split action bar, putting 2-3 buttons at the bottom
of the screen. This unfortunately makes it easy to hit the home/
back/etc buttons on the phone when going for the bottom area, plus
I just don't like it. ;) Taking it out for now.
Merge pull request #19 from brion/menus

Move all menu items into main action bar or overflow menu