Merge branch 'master' into dev
Text width and height issue fixed

Text width and height now returns the correct values
Tweaked Arc function

fixes #844
First pass of speed up
Tied up new webGL batch approach

now 400% faster when dealing with separate textures
Merge branch 'webgl-speed-up' into dev
`this.textureChange` is no longer used in any object, anywhere within Pixi, so this check now appears to be redundant - and is changing the internal class shape of Pixi.Sprite as a result (adding a property that doesn't exist).
Merge pull request #862 from photonstorm/dev

`this.textureChange` is no longer used in any object, ...
Fixed typo in URL
Merge branch 'dev' of https://github.com/GoodBoyDigital/pixi.js into dev
Added 0 width check to DisplayObjectContainer
Remove trailing commas from object property lists

Removing trailing commas for:
- internal consistency;
- compatibility with the Google Closure compiler defaults.

The Google Closure compiler assumes ECMAScript 3 and emits errors when
parsing objects with trailing commas in their property list.
(Compilation succeeds if the user manually specifies ECMAScript 5.)
Merge pull request #866 from ndr-qef/extraneous-commas

Remove trailing commas for Google Closure compatibility
Fixes #870

Rounded rect now works in webGL
Merge branch 'dev'
published files for v1.6.1
bump versions to v1.6.1