minor API changes in collision functions.
minor API changes in collision functions.

keletskiy/ode,keletskiy/ode,keletskiy/ode,nabijaczleweli/ODE,nabijaczleweli/ODE,keletskiy/ode,nabijaczleweli/ODE,nabijaczleweli/ODE,nabijaczleweli/ODE,keletskiy/ode,nabijaczleweli/ODE,keletskiy/ode