Make jet energy corrections threadsafe, see https://twiki.cern.ch/twiki/bin/view/CMSPublic/FWMultithreadedConsumesJetCorrectorMigration
Introduce pt cut for neutrals in axis2 and ptD calculation, switch quality cuts for charged particles off by default
Remove some std::cout I used to check if everything was ok
make useQualityCuts tracked
Avoid sqrt for dz and dsigma error
Merge pull request #6482 from UAEDF-tomc/qgTaggerUpdateNov2014

Qg tagger update nov2014
Merge remote branch 'origin/CMSSW_7_3_X' into CMSSW_7_0_X