removing spurious error message, error results from the fact that mvaPrelection flag is not being filled in 7X and is not an issue
Do not dereference handle, before its validity is checked.
Merge pull request #6485 from vadler/72X-fixHadronAndPartonSelectorForUnknownGenerators

72X - fix `HadronAndPartonSelector` for unknown generators
Merge pull request #6480 from Sam-Harper/EGEcalDrivenFix_72X

removing spurious error message from GsfElectron::ecalDriven()  72X
Merge remote branch 'origin/CMSSW_7_2_X' into CMSSW_7_0_X