remove constraint fixed,
Bullet timestep now subdivides Blender game engine timestep, so it runs 60 hertz,
SphereShape reverted to old style, so no support for non-uniform scaled spheres for now,
- on Ton's request use double versions of cos,sin,tan, sqrt etc.
just like Solid in MT_Scalar #if defined (__sun) || defined (__sun__) || defined (__sparc) || defined (__APPLE__)
- updated an url in the header of files