update the DQMService to see the new fwk signals
Merge pull request #4111 from deguio/DQMServiceUpdate

Update the DQMService to see the new fwk signals.
Merge pull request #4135 from cms-sw/CMSSW_7_1_X

Forward port CMSSW_7_1_X into CMSSW_7_1_CLANG_X