Use of a factory for control instantiation
Merge branch 'next' of git://github.com/blackberry/GamePlay into controls_factory

Conflicts:
	gameplay/src/ImageControl.cpp
Renaming ControlCreator into ControlActivator and correcting missing
return value in ControlFactory::registerCustomControl
Replace advertisedDescendant mechanism in class Node with a simple search. The advertisedDescendant mechanism was only being used by PhysicsVehicle/Wheel.
Minor doc fix.
Merge pull request #1212 from seanpaultaylor/next

Changed the lighting.frag from phong to blinn-phong shading
Merge pull request #1211 from kwhatmough/next

Replace advertisedDescendant mechanism in class Node with a simple searc...
Merge pull request #1213 from seanpaultaylor/next

Next
Merge remote-tracking branch 'blackberry/next' into controls_factory

Conflicts:
	gameplay/CMakeLists.txt
Merge pull request #1214 from Pixelized/controls_factory

Use of a control factory to instantiate controls (follow-up of #1192)
Code cleanup of ControlFactory.
Regenerated lua bindings.