change max number of PDF sets for lhapdf full memory variant
update photos++
Merge pull request #926 from smuzaffar/IB/CMSSW_7_2_X/stable

updatyed cmssw and cmssw-patch to make use of scram_compiler and extra_tools for clang and icc builds
Check if debug logs exist before compressing them
Merge pull request #927 from nclopezo/compile-fwlite-osx

scram-project-build: Check if debug logs exist before compressing them
Merge remote-tracking branch 'origin/IB/CMSSW_7_1_X/stable' into IB/CMSSW_7_0_X/stable
Move to cms-sw/root@34038eef
Merge pull request #933 from ktf/fix-empty-baseclass-persistency

Move to cms-sw/root@34038eef
Use thepeg from cms-externals and update, update herwigpp.

This PR overrides #881.
Merge pull request #931 from degano/thepeg_herwigpp_72X

Use thepeg from cms-externals and update, update herwigpp.
Merge pull request #918 from inugent/photospp355_7_2_X

update photos++
Merge pull request #837 from mkirsano/lhapdf_numsets

change max number of PDF sets for lhapdf full memory variant
cms-common: fix cmsarch for fc19_aarch64 cmsos

cmsos script returns fc19_aarch64 or fc19_armv7hl, yet cmsarch
script expected an additional underscore after cmsos. Resolve it
by checking exact match to cmsos.

Signed-off-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>
Merge pull request #935 from davidlt/fix-cms-common-aarch64

cms-common: fix cmsarch for fc19_aarch64 cmsos
Update libunwind.

- Update to the HEAD, move to use cms-externals.
- Pick up ARM64 fast backtrace patches from @fillexen.
- Add autotools buildrequires and do autoreconf.
Merge pull request #936 from ktf/new-libunwind

Update libunwind.
igprof updated to 5.10.0 RC.
Merge pull request #937 from ktf/igprof-update

igprof updated to 5.10.0 RC.
Revert "Re-enable xrootd 4.0.2."
Merge pull request #940 from cms-sw/revert-922-re-enable_xrootd402_72X

Revert "Re-enable xrootd 4.0.2."