add hltIter4Merged w/in tracking DQM
add HLTmultiTrackValidator configuration
set update to false as default value
add check cluster isValid()
add harvesting for HLT tracking
add modules for monitoring also iter0,1,2,3 @HLT (default sequence does not use them)
switch off plots VS LS and LS analysis
monitor only hltPixelTracks, hltPFlowTrackSelectionHighPurity, hltIter1PFlowTrackSelectionHighPurity, hltIter2PFlowTrackSelectionHighPurity, hltIter3PFlowTrackSelectionHighPurity and hltIter4Merged
deleted HLTrigger/Configuration/test/hlt_validation_cff.py (it was introduced by mistake, sorry)
synchronize test to new default value of the update parameter in DetSetVectorNew
Merge pull request #3011 from mtosi/from-CMSSW_7_1_0_pre4_trackingHLTvalidaiton

tracking HLT validaiton