simple elephant sprite that walks back and forth
four to the floor
visual fixes
clean up, scaling, and new minimal boot screen
added some test graphics to load tilemaps

Not very かわいい, but it works.
Main state now renders test tile map

this needs to be generalized for layers, but otherwise it looks great!
Merge branch 'tilemap-loading' into rita-dev

Conflicts:
	app/scripts/State/Main.ts
	app/scripts/State/Preload.ts