update for getBounds

remove duplicated assignments
Merge pull request #1207 from TrompoGames/Trompo-SpineUpdate

[SPINE] Updated to latest version + added skinned mesh attachment support.
removed extra semi-colon
Merge branch 'dev' of https://github.com/GoodBoyDigital/pixi.js into dev

Conflicts:
	src/pixi/display/Sprite.js
Merge pull request #1181 from kambing86/patch-1

update for getBounds
removed unused lastIndex
Merge branch 'dev' of https://github.com/GoodBoyDigital/pixi.js into dev
fixes #1188
Merge pull request #1212 from TrompoGames/Trompo-SpineUpdate

[SPINE] Fixes broken examples + bug fixes
Fixed round pixels

Also added to webGL renderer
Added mipmap option to baseTexture
-[SPINE] Fixes Atlas attachment loader bug in which it would try to load the name of the attachment as a sprite instead of the name of the sprite.
-[STRIP] "padding" renamed to "canvasPadding" to reflect the fact that it is only used in canvas mode + canvas padding is calculated using the world transform to make sure it looks right at any scale.
-[SPINE] Spine loader uses a canvas padding of 1.5, optimal for most use cases.
Merge branch 'dev' of github.com:GoodBoyDigital/pixi.js into Trompo-SpineUpdate
Merge branch 'Trompo-SpineUpdate' of github.com:TrompoGames/pixi.js into trompo-dev