Hinge constraints now act in a consistent matter, although it's STILL WRONG!
Slider constraints now setup the correct frame for the reference object, but the attached object frame is STILL WRONG!
Added 3 lines of code to all of the header include guards, hopefully should speed up compiles very little.
Physics_VehicleControllerCustom for implementation of our own vehicle controllers - Would be really messy if we added this to the default vehicle controller. Aim of these is to provide complete control over vehicles to the game. (Incoming racing simulators in source!)