remove ref to MCTruth
rename PSimHitMap to avoid external conflict
adapted to CSCPSimHitMap
Merged refs/pull/3327/head from repository cms-sw
Tims changes but reverting back to PSimHitMap
Tims changes but reverting back to PSimHitMap
Merge pull request #3368 from davidlange6/reunify_PSimHitMap

PSimHitMap -- Reunify p sim hit map