bug fix for occupancy histograms for RE4
Bugfix for L1 emulator dPhi calculation
An initial version of the script used for cleaning the dqmdata area.
Merge pull request #6762 from batinkov/CMSSW_7_3_X

An initial version of the script used for cleaning the dqmdata area.
Merge pull request #6749 from apana/mht_bugfix

Bugfix for L1 emulator dPhi calculation
Merge pull request #6763 from acimmino/BugFix_Occupancy_73X_74X

RPC DQM occupancy plot bug fix for 73x
Merge remote branch 'origin/CMSSW_7_3_X' into CMSSW_7_0_X