CMSSW_10_5_0

Changes since CMSSW_10_5_0_pre2:

compare to previous

1. 26074 from @tocheng: Backport : Update GT for ultra legacy - MC ECAL, GEM eMap alca created: 2019-03-05 16:23:36 merged: 2019-03-08 13:24:08

2. 25997 from @fabiocos: [105X] removing three fragments from override (backport of #25955) pdmv upgrade created: 2019-02-22 08:42:29 merged: 2019-02-25 15:43:36

CMSDIST Changes between Tags REL/CMSSW_10_5_0_pre2/slc7_amd64_gcc700 and REL/CMSSW_10_5_0/slc7_amd64_gcc700:

compare to previous

1. 4732 from @cms-sw: [BuildRule] Disable rootmap dependency rule added for CXXMODULE IBs created: 2019-02-26 22:04:39 merged: 2019-02-26 22:04:45