CMSSW_9_4_19

Changes since CMSSW_9_4_18:

compare to previous

1. 32019 from @kpedro88: Read SLHA from TTree [9_4_X] generators created: 2020-11-03 23:41:37 merged: 2020-11-06 08:19:50

CMSDIST Changes between Tags REL/CMSSW_9_4_18/slc6_amd64_gcc630 and REL/CMSSW_9_4_19/slc6_amd64_gcc630:

compare to previous

1. 6470 from @cms-sw: [9_4_X] MSAFETY set to 1e-4 - created: 2020-11-30 17:53:45 merged: 2020-12-02 00:14:20