Merge pull request #1010 from blackberry/next

GamePlay v1.7.0 - merged next to master
Adds purged folder names to .gitignore to help avoid carrying old history in future commits.
Merge branch 'next'
Merge pull request #1014 from kwhatmough/next

Adds purged folder names to .gitignore to help avoid carrying old histor...
Merge pull request #1015 from kwhatmough/master

Add purged folder names to .gitignore
Merge pull request #1017 from seanpaultaylor/master

GamePlay v1.7.0 - merged master to next
#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 pull request #1032 from blackberry/master

Merging master fixes back into next
Merge branch 'master' of https://github.com/blackberry/GamePlay
Merge pull request #1034 from ablake/master

Multi-touch fix.
Fix TextBox documentation
Merge pull request #1037 from Pixelized/fix-text-box-documentation

Fix TextBox documentation
Merge pull request #1038 from blackberry/master

Merge master to next
Fix Linux Debug build
Merge pull request #1040 from stelth/master

Fix Linux debug build.
Merge pull request #1041 from blackberry/master

Merged master to next
fallback to OpenGL 2.0 on Windows if 3.0 is not supported