Removed State & StableArray (now in SimTKcommon).
Removed State & StableArray (now in SimTKcommon).

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