Configurable maximum substeps per frame in PhysicsWorld. Zero (default) = unlimited, positive = limited, negative = adaptive timestep, always 1 per rendering frame. Adaptive step is not recommended when consistent physics behavior is desired.
Added missing contributor credit.
Travis CI: API documentation update at 2014-11-03 16:53:48 UTC.
[ci package]
For Travis CI - switch CI build to use Raspberry-Pi build environment.