go back to the DQM generic client for performing the summary efficiency plots
fix the declaration of the histograms : now declare then directly in the eBooker
use the setBinLabel to set the label of the bins and not the Fill method on the fly ...
Merge pull request #4299 from HuguesBrun/fixHiggsDQMfor710

Fix in Higgs HLT validation DQM for multithreading
Merge remote branch 'origin/CMSSW_7_2_X' into CMSSW_7_0_X