Made debug count an atomic
Merge pull request #3847 from Dr15Jones/makeCountAtomicInKinematicConstrainedVertexUpdatorT

Multithreading -- Made debug count an atomic
remove unused dependency on boost library
Merge pull request #3874 from gartung/clang-remove-deps

Tools -- Remove unused dependency on boost library in CSA
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X