updating readme
fixing tiling sprite for BATCH_SIMPLE and canvas renderer. still broken on BATCH_GROUPS
resetting tiling sprite example to normal
Merge branch 'culling' of https://github.com/mattdesl/pixi.js into jam3-merge

Conflicts:
	bin/pixi.dev.js
	bin/pixi.dev.js.map
	bin/pixi.js
	src/pixi/renderers/canvas/CanvasRenderer.js
updating build