small changes to examplescene.js
fixing method signatures in PhyicsSystem.js
Moved logic to physicssystem added repeated calling of update method to gamescene
Fixed GetPosition method in PhysicsSystem
Made skeleton for physics process
Cleaned up GameScence, fixed method calls within PhysicsSystem
Editing update function starting helper methods for physics process method
first fix for addRectangle method
addRectangle method now works, can be tested in branch Justin3
Cleaning up after combining branches
checkEntExistsInPhys() implemented
Added some additional parameters to physics component. Fixed addRectangle and addCircle to work with being passed an entity
implemented updatePhysComponent
finished implementing helper methods. added setmethod to b2Shape.js.  fixed bugs in physics component and PhysicsSystem
fix merge