[ODE] New Physics SDK/Stepfast

[DjArcas]

> One thing which is interesting to note is that this
> engine (like most game-oriented engines) seems to have (recently)
> gone what I can only presume to be an 'iterative solver' (stepfast!)
> route, inferred from reading their latest news.

Does ODE use StepFast by default now? or is it a switch I need to flick on?
does that help me during moments of horrendous islands caused by a dozen
cars in a pileup? :)

Adam