[ODE] ODE 0.50 distribution

[John Miles]

OK, so Billy Zelsnack suggested cranking up MAX_CONTACTS to 128, and that
seems to make a world of difference.  The trimesh-box collider seems to work
very well indeed with the higher contact limit.  I withdraw the comment. :)

-- jm

> Basically, I have a trimesh terrain that consists of a lot of small
> triangles lying in (in this case) a flat plane.  If an object
> represented by
> a relatively-large OBB falls onto the terrain, it tends to sink into the
> terrain, sometimes stopping around the halfway point, and other times
> falling on through.
>
> You can see an example of this halfway-point sinkage at
> http://thegleam.com/test.jpg .  The bottom half of the bow's OBB is below
> the trimesh terrain.
>
> With Erwin's code, it behaves fine.  The objects land on the terrain and
> settle down rapidly, especially with the new QuickStep solver enabled.
>