New Run2 simulation GT for HCal.
migrate from EDProducer to stream::EDProducer
update cacheId_
bug fix cacheID_
migrate from EDProducer to stream::EDProducer
Seperating modifications from Configuration/Generator/python in branch GENSIM_update_7_3_X_merged into new branch for pull request to update Configuration/Generator only. Requested by Giovanni and Josh. added by <nugent@physik.rwth-aachen.de>
For gen-fragments with TuneCUETP8M1 intended for the relval sequence, adding versions without Tauola (excl. 1 leptonic vs 1 hadronic tua pairs combinations ). <nugent@physik.rwth-aachen.de>
Cleanup unused arguments.
Cleaned up import statments to remove Tauola when not needed. <nugent@physik.rwth-aachen.de>
Merge pull request #6733 from ktf/cleanup-unused

Cleanup unused arguments.
Merge pull request #6737 from inugent/RelVal_Pythia8_update_7_4_X_without_Tauola_option

Rel val pythia8 update 7 4 x without tauola option
Merge pull request #6662 from mtosi/from-CMSSW_7_4_X_2014-11-27-0200_multithread_pixelPV

migration from EDProducer to stream::EDProducer (PixelVertexProducer)
Merge pull request #6659 from mtosi/from-CMSSW_7_4_X_2014-11-27-0200_multithread_FEDlist

migration from EDProducer to stream::EDProducer (SiStripExcludedFEDListProducer)
Merge pull request #6643 from diguida/autoCond_730

New Run2 simulation GT for HCal.
Merge remote branch 'origin/CMSSW_7_4_X' into CMSSW_7_0_X