Merge pull request #156 from jonathantorres/master

Update README.md
Typo in WebGLRenderGroup?
Fix update textures in handleContextRestored

* you try to iterate on PIXI.TextureCache as Array but it's Object;
* PIXI.WebGLRenderer.updateTexture deals with base texture, so we need to get such a field;
* need to texture._glTexture = null, because PIXI.WebGLRenderer.updateTexture only deal with texture without _glTexture;
* and also run as static method PIXI.WebGLRenderer.updateTexture(...);
Fix for Chrome error when loading texture created with new Image()

See https://code.google.com/p/chromium/issues/detail?id=115668
Merge pull request #157 from namuol/master

Typo in WebGLRenderGroup?
Merge pull request #161 from Hyzhak/patch-1

Fix update textures in handleContextRestored
Update BaseTexture.js

Updated Chrome bug link
Merge pull request #176 from ddsol/patch-1

new Image() error: Fixed bug link
Merge remote-tracking branch 'upstream/master'