replacement of getByLabel -> getByToken and use of ak5PFJetsCHS collection for the single top modules
Merge pull request #2166 from mmerola/singletopDQM_for71X

DQM updates -- getByLabel -> getByToken and use of ak5PFJetsCHS collection for the single top modules
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X