Merge pull request #1264 from dgough/next

Changed Bundle, Font, Properties and SceneLoader to use GP_WARN instead of GP_ERROR
Fix #1260. Rely on wheel physics in underlying btRaycastVehicle.
Merge pull request #1268 from kwhatmough/next

Fix #1260. Rely on wheel physics in underlying btRaycastVehicle.
Fixed a bug in the InputSample
The form was not being deleted so it was consuming touch events on the main sample list.
Fixed memory leak in Form::create
Merge branch 'next' of https://github.com/blackberry/GamePlay into next
Fixed the lua sample bar-descriptor.
The error was caused by logo_powered_white.png being copied twice because the visual studio post built event was copying it to lua/res/