[ODE] box-box collisions

[Pierre Terdiman]

> three is a reasonable number, as long as we use the three
> contacts that are most penetrating.

Ok, that's the extra condition I was missing.

> > What do I need to do in order to change that number ?
> 
> write more code :)

Actually the answer I was looking for was :

"change the hardcoded value in
static void nearCallback (void *data, dGeomID o1, dGeomID o2)"

That's in the box-stack test, no wonder I didn't find it in ODE itself.....

Pierre