Add player to game

Create placeholder sprite for player. Show player on screen.
mend
Simple refactoring
Merge branch 'master' of https://github.com/ginja85/LudumDare31

Conflicts:
	src/scripts/game.coffee
Fixed problem with tiles not loading properly
Add player movement

Pressing left, right, up or down will move the player in the relative
direction.
Merge branch 'master' of https://github.com/ginja85/LudumDare31

Conflicts:
	src/scripts/game.coffee