Added an option to make rigidbody kinematic
Physics contact listener for Box2D
Set and get angular velocity
Get and set restitution of rigidbodies
Updated solution and platform.mk
Merge branch 'physics-stuff' of https://github.com/batmanbatmanbatman/UtH-Engine into batmanbatmanbatman-physics-stuff

Conflicts:
	vs2013/Engine/Engine.vcxproj.filters
Merge branch 'batmanbatmanbatman-physics-stuff' into develop