change bunch spacing for nopu config (should have no effect) so that nopu is more easily distinguishable in pileupsummaryinfo
minimal implementation of automatic 50/25ns switch in Ecal Local Reco (using if isRealData and pileupSummaryInfo)
change hardcoded bunch spacing for fastsim pileup producer so that something sensible gets written in pileupsummaryinfo
add extra integer to be produced by PileupInformation along with PileupSummaryInfo which can be used to pass the bunchspacing to downstream modules
move Ecal Local Reco to used dedicated int product for bunchSpacing rather than directly the PileupSummaryInfo
Merge pull request #6301 from bendavid/minimalEcalLocalRecoPUswitch

Minimal (temporary) solution to automatically switch between 25ns and 50ns configs in ecal local reco