Organizing image files
Fixing switchIn/switchOut screen stuff
Adding support for fadeIn/fadeOut for screens. Also blank options menu
Fixing a bunch of fadein/out stuff. Works betterer now
Making the playfield background visible while paused
Show the version information on all screens (we are in beta, after all)
Adding a simple menu class for a few things
Adding in ability to pause + exit running game
Version nudge
Making the cursor return to its original spot on selection
Hiding the options menu for now
Fixes #8 by resetting all game-state vars in Game:init()
Merge branch 'issue-8-game-reset' into develop
Adding support for arguments in menu return values
Adding support for 6 block gameplay. Hard mode!

Fixes issue #9 (no block graphics).
Removed menu cursor reset from selection, doing it in screen's switchIn() now

Fixes #7
Adding a silly pulse effect to the menu cursor
Version bumping up to r6. Hooray.
Rebalancing the gravity timings. Now goes from 0-40 and is a lot less steep