Calculate offset of trimmed frames in sprite sheet

Data comes from JSON file generated via TexturePacker
improve documentation. closes #141 and #142
Merge pull request #143 from floatdrop/dev

Improve documentation. closes #141 and #142
Update README.md
Merge pull request #135 from grifotv/patch-1

Calculate offset of trimmed frames in sprite sheet
Update README.md

Road map added
Update README.md

typo
Update README.md

Small typo
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 dev into master
Compile new builds
Image constructor changed package updated to 1.1.0

new Image() used now instead of document.createElement('img');
Merge branch 'dev'