Merge pull request #1 from samvermette/master

update to samvermette:master
Implemented motion effect
Motion Effect

Implemented in hudView accessor
Updated screenshots
Added SVProgressHUDDidReceiveTouchEventNotification to README
Introduced SVProgressHUDParallaxDepthPoints constant
Merge pull request #222 from pronebird/master

Add missing contentsScale for retina
Merge pull request #209 from mbigatti/master

Added Parallax Effect