move btTriangleInfoMap.h into its own header, into the BulletCollision/CollisionShapes folder add btTriangleInfoMap pointer to btBvhTriangleMeshShape, so we don't need to use the 'userpointer' anymore preparation for serialization of btTriangleInfoMap. See also http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=4603&start=30