Merge branch 'dev' of https://github.com/GoodBoyDigital/pixi.js into dev

Conflicts:
	src/pixi/utils/Utils.js
Merge branch 'dev' of https://github.com/GoodBoyDigital/pixi.js into dev
Merge branch 'dev' of https://github.com/GoodBoyDigital/pixi.js into dev
Merge branch 'dev' of https://github.com/GoodBoyDigital/pixi.js into dev
Documentation Fix