CentralityPopConProducer removed
NZS MC production snippet
Convert ESZeroSuppressionProducer to stream module

The static analyzer believes this module can safely be converted
to a stream module. This was also converted to make the DIGI workflow
more thread efficient.
Convert PileupInformation to stream module

The static analyzer believes this module can safely be converted
to a stream module. This was also converted to make the DIGI workflow
more thread efficient.
Merge pull request #6000 from Dr15Jones/streamPileupInformation

Convert PileupInformation to stream module
Merge pull request #5998 from Dr15Jones/streamESZeroSuppressionProducer

Convert ESZeroSuppressionProducer to stream module
Merge pull request #5981 from abdoulline/HCAL_NZS_custom_73X

NZS MC production snippet
Merge pull request #5990 from CmsHI/pr_73X_v04

unused duplicate plugin removed
Tidy up some of the source code.

No major changes to functionality.
Merge branch 'CMSSW_7_3_X' into multisource-xrootd-v4