fixed some minor bugs in the blend functions
Merge pull request #6 from denniskaselow/upstream

fixed some minor bugs in the blend functions
fixed bug in applyMask
Merge pull request #8 from denniskaselow/patch-1

fixed bug in applyMask
version 0.7 read changelog
Merge branch 'master' of git://github.com/rezoner/CanvasQuery
moved original canvasquery.js to subfolder
added some more functions from 0.7 of CanvasQuery to canvas_wrapper.dart