Add the license (MIT)
Update the MacBuildServer button with the correct depot.
Add score/hashtag to game over screen.

Closes #33.
Implements a basic practice mode.

Practice mode has the benefit of skipping the "select hashtag" screen..
Move Arial12 font into it's own folder
Convert all fonts to bitmap fonts. Still need to create the fonts for iPad and retina devices.
Merge branch 'master' of https://github.com/verbitan/hashtag-warrior

Conflicts:
	hashtag-warrior/Game/Layers/GameOverLayer.mm
	hashtag-warrior/Game/Layers/MainMenuLayer.m