Improved grab gesture recognition.
Ignore IDE files.
Upgraded to V2 APIs and use new "grabStrength" value to detect a closed hand.
Add grip strength indicator to hand marks. Marks will tint to red as the grip strength increases until the grip is fully closed and then the mark will shrink in size and turn green. The red is to encourage and remind the user to keep their hand fully open when not gripped.
Fixed some minor code warnings including an unfiltered array iteration loop (see http://stackoverflow.com/a/3010848/416130 for an explanation of the danger.)
Added support for one-handed zoom via circle gesture.
Significantly improved circle zoom reliability by filtering on only the index finger.
Significantly improved circle zoom reliability by filtering on only the index finger.
Merge pull request #2 from jaxzin/circle-zoom

V2 API and Circle Zoom