added data externals for  DQM-Physics_HWW
Merge pull request #536 from nclopezo/add-data-external-DQM-Physics_HWW

added data externals for  DQM-Physics_HWW
Merge remote branch 'origin/IB/CMSSW_7_1_X/stable' into IB/CMSSW_7_0_X/stable