colour matrix demo and bug fixes
Merge branch 'master' of https://github.com/adireddy/haxe-pixi

# By Adi
# Via Adi
* 'master' of https://github.com/adireddy/haxe-pixi:
  Update README.md
  Update README.md
  Update README.md
  Update README.md
  added tiling sprite and blur demos