FIX: NSRunLoop issue where animations would not fire until after NSEventTrackingRunLoopMode completed, as when a UITableView or UIScrollView is scrolling.  Added support for NSRunLoopCommonModes in calls to performSelector and with the NSTimer.
Merge pull request #2 from jasonmarziani/FIX-NSRUNLOOP

FIX: NSRunLoop issue where animations would not fire until after NSEvent...