Adding retina support with hidpi-canvas polyfill
Adding new features

New fullSteps feature that reduces the size of the points saved. Great if you are not changing tools, size and color on your scribble.
The loadDataURL method now uses asynchronous loading of the image which solves an issue of images not loading on some browsers
Merge branch 'refs/heads/feature/retina-support'
Release 0.3.0