Fixes #580 where resizable views were only taking into account their offset from the top left of the viewport.
Merge branch 'true-resize-canvas' of https://github.com/georeith/paper.js into georeith-true-resize-canvas
Revert unecessarily commited files in pull request #586
Merge branch 'georeith-true-resize-canvas'
Clean up and simplify code from pull request #580 and fix CSS in examples accordingly.