#1026
Fix for multi-touch on mobile devices.
So far tested on BB10.  Checking in so I can deploy to iPhone and Android.
Replacing a magic number with a constant.
Fixed issue with cloning certain models that have mesh skins.
Merge pull request #1031 from sgrenier/master

Fixed cloning issue in MeshSkin
Merge branch 'master' of https://github.com/blackberry/GamePlay
Merge pull request #1034 from ablake/master

Multi-touch fix.