New version of fastHadd with correct file permissions.
Style change: use a global variable named commit instead of tag, as we deal with threeish.
Fix comments.
adding python dablooms package
Add CMSSW_7_3_X_THREADED IB for slc6_amd64_gcc481
Add CMSSW_7_3_CLANG_X IB for slc6_amd64_gcc481
Merge remote branch 'origin/IB/CMSSW_7_0_X/stable' into IB/CMSSW_7_0_X/stable
Merge remote branch 'origin/IB/CMSSW_7_1_X/stable' into IB/CMSSW_7_0_X/stable
Merge remote branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable
Merge pull request #1048 from gartung/py-dablooms

adding python dablooms package
Include fix to make TFormula thread safe.

Merged in cms-sw/root#24.
Merge pull request #1055 from degano/root_threadFix_72X

Include fix to make TFormula thread safe.
Merge remote branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable
Fix directory structure for lhapdf6 and some improvements
Merge pull request #1059 from mkirsano/lhapdf6_fix_structure_72

Fix directory structure for lhapdf6 and some improvements
Merge remote branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable
Add lhapdf6 tool keeping it inactive
Update root to use fix for fIsAMethod thread safe.

See also cms-sw/root#27.
Merge pull request #1067 from degano/root_isamethod_fix_72X

Update root to use fix for fIsAMethod thread safe.
Merge remote branch 'origin/IB/CMSSW_7_2_X/stable' into IB/CMSSW_7_0_X/stable