Added mushroom.
Merge branch 'master' of https://github.com/throbbingrobotheroes/amazonmushroom

Conflicts:
	src/states/ingamestate.d
Merge branch 'master' of https://github.com/throbbingrobotheroes/amazonmushroom

Conflicts:
	src/entity/throbbingrobot.d
Merge branch 'master' of https://github.com/throbbingrobotheroes/amazonmushroom
Set aspect ratio correctly.
Merge branch 'master' of https://github.com/throbbingrobotheroes/amazonmushroom
Merge branch 'master' of https://github.com/throbbingrobotheroes/amazonmushroom