Upgrade SUCCESS - core mechanics working

-Collision + core gameplay mechanics working properly
-Seems faster! (collision "bugs" from previous Phaser version seem gone)
-HUD text not working properly

BUGS:
-"canMove()" disabled - characters move on every attempt (even if
impossible) - resulting in extra moveCounter increments + "thunk" sounds
-Collision rect on goals/switches is too large (should be ~20x20,
centered)