left/right buttons for cutscenestate, b/w slides

added white background to unfinished slides so they can be displayed
with black background cutscenestate. transparencies moved to backup
folder
Color/detail for player, guards and orderlies.

also cleaned up walls a bit.

closes #35
Merge branch 'master' of github.com:jlowdermilk/asylum-escape-game

Conflicts:
	src/assets/refs/frame_03.png
	src/assets/refs/frame_09.png