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/
Converted tabs to spaces in the files I modified.
Updated the mesh sample project files for BB and Android
Fixed project files for BB and Android because some of the res file names changed.
Also fixed the aspect ratio of some of the samples.
Merge pull request #1269 from dgough/next

Fixed memory leak and bug
Removing SceneRenderer and VisibleSet to keep the framework more minimal.
Merge branch 'next' of https://github.com/blackberry/GamePlay into next
Removed files no longer in repo for Linux and Android.
Merge pull request #1272 from seanpaultaylor/next

Next
Removing Social features and moving to seperate repo as an extension sample
Merge pull request #1273 from seanpaultaylor/next

Removing Social features and moving to seperate repo as an extension sam...
Removed remaining social api.
Merge pull request #1275 from seanpaultaylor/next

Removed remaining social api.
Fixes order of extensions in fragment shader for tegra GPUs
Merge pull request #1276 from seanpaultaylor/next

Fixes order of extensions in fragment shader for Samsung Galaxy Note
Fixes android build and newproject scripts for copying the shader dir to the new project res folder.