cms-sw/cmssw — pull request #5461 by franzoni (2014-09-22 08:40:55+00:00)
Title: Beamspot nominal collision2015

- introduce beamspot parameters as agreed during PPD General discussion https://indico.cern.ch/event/341218/ , NominalCollision2015
- the defaualt beamspot remains as before Realistic8TeVCollision
- use the NominalCollision2015 for postLs1 relvals