fix DT crash in case of crazy FED number
Merge pull request #6852 from wmtan/FixDuplicateDefinitions

Fix duplicate definitions in ROOT macros
Merge pull request #6866 from deguio/fixDTatT0_74

fix DT crash in case of crazy FED number
Merge remote branch 'origin/CMSSW_7_4_X' into CMSSW_7_0_X