cms-sw/cmssw — pull request #1115 by civanch (2013-10-21 09:19:40+00:00)
Title: added step limiter for e+e-

Added additional step limiter which may be activated for electrons and positrons. Added Russian roulette for gamma to Stacking action (the same place as for neutrons). Clean-up Geant4 Stacking, Tracking, Stepping actions.