Changes since CMSSW_7_6_2:
- #12716 from @mmusich: Fixing AlCa Matrix for 2015 EOY Reprocessing
alca - #12679 from @cms-btv-pog: Making the boosted double SV tagger thread-safe (76X)
reconstruction - #12664 from @diguida: Updating Data GT for 2015 Run2 EOY Re-Reco
alca - #12551 from @mverwe: pixel vs HF energy filter (76X version of #12487)
hlt - #11791 from @rappoccio: Updating to latest fastjet contrib Nsubjettiness
reconstruction
CMSDIST Changes between Tags REL/CMSSW_7_6_2/slc6_amd64_gcc493 and REL/CMSSW_7_6_3/slc6_amd64_gcc493:
cms-sw/cmsdist@REL/CMSSW_7_6_2/slc6_amd64_gcc493...REL/CMSSW_7_6_3/slc6_amd64_gcc493
- cms-sw/cmsdist#2029 from @smuzaffar: updated fastjet-contrib to use the latest 1.020 fixes
- cms-sw/cmsdist#2024 from @cms-sw: updated root to include s3 session key fix
- cms-sw/cmsdist#2020 from @cms-sw: cleanup for fwlite build
- cms-sw/cmsdist#2018 from @cms-sw: glibc: bump to 2.12-1.166.el6_7.3 for SLC6; increase DTV_SURPLUS