See also http://www.bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=10073 Move ConstraintPhysicsSetup to Demos3/bullet3/ConstraintDemo
See also http://www.bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=10073 Move ConstraintPhysicsSetup to Demos3/bullet3/ConstraintDemo