braking works now
renamed .last_dt of World instances to just .dt
including angular velocity in Body.prototype.sleepTick
raycastvehicle updates, renamed world.last_dt to .dt
support for y coord system in raycastvehicle
box vs heightfield seem to work
various ray fixes
rollInfluence bugfix, exposing sideImpulse and forwardImpulse per wheel. Also some GC optimization
renamed maxSuspensionTravelCm to maxSuspensionTravel, and it now using meter units instead of centimeters
some GC optimization and docs
checking fewer triangles in heightfield raycast
cleanup code in demo