[ODE] New patches: 2 new joints and some optmization

[Jon Watte (ODE)]

Remi Ricard wrote:
> The first joint is a Piston. It is a joint similar to the slider but the 
> 2 bodies are free to rotate around the sliding axis.
>
> The second joint is a joint combining a prismatic and 2 rotoides joints.
> (or in ODE terms a slider and a universal joint).
>   

This sounds great! Thanks in advance.

Cheers,

          / h+