[ODE] value passed to dAddTorque isn't actually torque?

[Martin C. Martin]

> you're not actually setting the mass property of the body.

Doh!  Thanks Russ.  And working through this example from first principles
made me realize what was wrong with my original app: I'd converted lbs of
force to kg rather than newtons, so I was missing a factor of 9.8.  For
those using the UNIX command "units," you need to specify "lbs force," not
just "lbs."

Thanks, and sorry for the trouble,
Martin