fix the DQMRootSource to run over the skims and add checks to DTMonitorClient
following the naming changes from DQMROOT to DQMIO
Merge pull request #3345 from deguio/fixDQMRootSourceToSupportSkims

DQM -- Fix the DQMRootSource to run over the skims
Merge pull request #3349 from deguio/fixDQMTests

DQM -- Following the naming changes from DQMROOT to DQMIO
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X