Comments in Physics.

AH-233
SOme changes in Iphysics and comments, more to be done tomorrow.
Finalize task.

AH-233
Some comments added and some changes to parameters to functions how
manipulates a body.
Merge remote-tracking branch 'origin/master' into AH-195_Integrate_Scene_Manager

Conflicts:
	Client/Source/BaseGameApp.cpp
Calle changes. AH-195