Another JSON tweak
Merged background_layer items with object_layers
Changed background image category to "object"
Added stop_music() to fix crashing related to pausing nonexistent current_music
Start: true to boolean instead of string
CRLF wonderfulness
Merge branch 'merge_background_layer'
Merge branch 'master' of https://github.com/aatuh/kiigame

Conflicts:
	kiigame.js
Fixed start:true boolean... again