add JECpayload protection in PhysicsTools/PatUtils/interface/ShiftedJetProducerT.h
Merge pull request #5606 from mmarionncern/CMSSW_7_3_X_2014-09-29-0200_metCodeFix

add JECpayload protection in PhysicsTools/PatUtils/interface/ShiftedJetProducerT.h