changed the way that user geom classes work - now there is a dCollideUserGeomWithGeom() collider function installed as the default for all user geoms, that figures out the correct collider function and then sets the colliders array so that the correct function is called directly the next time around.
changed the way that user geom classes work - now there is a
dCollideUserGeomWithGeom() collider function installed as the default
for all user geoms, that figures out the correct collider function and
then sets the colliders array so that the correct function is called
directly the next time around.

this solves a problem where the user's collider function was being called
before the user had a chance to set the global class number.


forrestv/opende,forrestv/opende,forrestv/opende,forrestv/opende,forrestv/opende