[ODE] Rope Simulation

[conn@smsc.no]

>
> Did you try the universal joint? I've used that for ropes in the past,
> and it's worked OK.
>

I have to check that out after the weekend, but im pretty sure that i have
tested with the universal joint. And if my memory servers me correct i got
a about the same results that i got from the ball joint. Object hanging in
the rope with a big mass leads to the joints beeing pulled apart. I'll
dobbel check it on monday