update from dev

Add Render Texture invalid size check

added getImage function to renderTexture ...

Also added getBase64 function to render texture.
Useful for saving out images into HTML world

updating branch with latest dev

Fixed Canvas render texture resize issue

Render Texture Canvas bug fix

Fixed Render Texture issue

Added a blendMode Manager ...

blend modes managed outside of spite batch
deleted unused files
republished

Optimized gl calls ...

less gl calls made to the GPU

RenderTexture truly extends Texture; more tests

update tests and ensure they pass

Fixed render texture canvas matrix bug

Added RenderTexture.clear - because, well, it's really useful :)

Fixed RenderTexture.resize so it now works across WebGL and Canvas. Uses the textureBuffer to resize and has a new optional 'updateBase' parameter which will set the new dimensions on the baseTexture as well. Fixes #746.

Add scaleMode params to FilterTexture and RenderTexture

Merge cachAsBitmap Branch

Docs, examples again, test folder, removeAll func

Modified trim to be a rectangle instead of point ...

removed trimmed variable on sprite as no longer required
tweaked test to not expect trim to be point

fix gl variable in RenderTexture.resize

Remove all references to mat3 or mat4

fixed render texture issue and jshinted code

Added cacheAsBitmap to DisplayObject

Fixed render texture issue where textures not getting uploaded to GPU before render

Rename indetityMatrix -> identityMatrix

English fixes

Fixed issue where filters not rendering in render texture

Removed visible count reference as its no longer used

Modify texture usage to allow for Multiple Renderer

Restructured render texture ...

fixed bug in canvas renderer
created canvasBuffer object
reworked renderTexture
removed ALL global references

refactored webGL renderer