Updated the SimTK tutorial to reflect new packaging and moved it from SimTK core to Simbody.
Updated the SimTK tutorial to reflect new packaging and moved it from SimTK core to Simbody.

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