Updated to use the new MobilizedBody method names.
Updated to use the new MobilizedBody method names.

Gjacquenot/simbody,robojukie/simbody,Gjacquenot/simbody,scamille/simbody,elkingtonmcb/simbody,chrisdembia/simbody,simbody/simbody,scamille/simbody,robojukie/simbody,elen4/simbody,chrisdembia/simbody,elkingtonmcb/simbody,simbody/simbody,Gjacquenot/simbody,elen4/simbody,robojukie/simbody,chrisdembia/simbody,scamille/simbody,elkingtonmcb/simbody