IntegratorTest was not allocating event IDs correctly.
IntegratorTest was not allocating event IDs correctly.

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