Changes since CMSSW_7_5_6_patch1:
➡️ Merge due to automatic forward port
CMSSW_7_5_6_patch1...CMSSW_7_5_7
CMSDIST Changes between Tags REL/CMSSW_7_5_6_patch1/slc6_amd64_gcc491 and REL/CMSSW_7_5_7/slc6_amd64_gcc491:
cms-sw/cmsdist@REL/CMSSW_7_5_6_patch1/slc6_amd64_gcc491...REL/CMSSW_7_5_7/slc6_amd64_gcc491
- cms-sw/cmsdist#1978 from @cms-sw: Revert "Upgrade Frontier client to version 2.8.14 and pacparser to 1.3.5."