add configurable cut on clusters to be added to the event
RandomNumberService unscheduled fix

Fix the random number service so that it will
not trigger unscheduled execution of the producer
that saves the random states when it tries to read
the random states. It will now always skip the
current process when getting it.
Merge pull request #1598 from wddgit/fixPostRead

Multithreaded framework -- RandomNumberService unscheduled fix
Merge pull request #1576 from argiro/preshowerThresh

Reco update -- Add configurable cut on clusters to be added to the event