[ODE] GIMPACT has been released with BSD license!!

[Geoff Carlton]

Francisco Leon wrote:
> * Totally refactored trimesh collision system. Using
> GIMPACT instead of OPCODE. Now works correctly, and
> faster. Visit http://gimpact.sourceforge.net.  
>   
Wow, alot of progress that has occurred in the space of a few days!

Is it still possible to use OPCODE with a suitable compile/premake 
switch?  I think users should be able to choose to stick with the old 
implementation, at least for now.

Geoff