CMSSW_10_0_0_pre3_G4VecGeom2

Changes since CMSSW_10_0_0_pre3:

compare to previous

CMSDIST Changes between Tags REL/CMSSW_10_0_0_pre3/slc6_amd64_gcc630 and REL/CMSSW_10_0_0_pre3_G4VecGeom2/slc6_amd64_gcc630:

compare to previous

  1. 3649 from @cms-sw: Revert “Switch to CLHEP 2.4.0.0” created: 2017-12-21 22:59:45 merged: 2017-12-21 23:24:58

  2. 3648 from @smuzaffar: merge geant4 changes from root6 branch created: 2017-12-21 21:44:05 merged: 2017-12-21 21:45:51

  3. 3616 from @civanch: Switch to CLHEP 2.4.0.0 created: 2017-12-06 14:57:19 merged: 2017-12-21 21:45:40