introduce NominalCollision2015 beamspot scenario, according to: https://indico.cern.ch/event/341218/
beamspot of postLs1 relvals set to NominalCollision2015; run1 relvals left as they were, making it explicit Realistic8TeVCollision (note: Realistic8TeVCollision is still the cmsDriver default)
UNDO: beamspot of postLs1 relvals set to NominalCollision2015
Reverted to using the legacy CPE error
Merge remote-tracking branch 'official-cmssw/CMSSW_7_2_X' into revertNewCPE

Conflicts:
	RecoLocalTracker/SiStripRecHitConverter/python/StripCPEfromTrackAngle_cfi.py
updates to online dqm configurations needed for global running
Merge pull request #5581 from nickmccoll/revertNewCPE

Revert new cpe
Merge pull request #5596 from danduggan/dqmconfigs72x

updates to online dqm configurations needed for global running
Merge pull request #5463 from franzoni/beamspot_NominalCollision2015-CMSSW_7_2_X_2014-09-22-0200

Beamspot nominal collision2015
Merge remote branch 'origin/CMSSW_7_2_X' into CMSSW_7_0_X