PAT Trigger remaining consumes migration (GetterOfProducts).
Use 'callWhenNewProductsRegistered' properly.
Construct InputTagMatch really from an InputTag.
Consistent namespace usage.
Ignore new nbinsy warning from ROOT

ROOT 5.34.17 has added additional warnings which we convert to exceptions. The warning about nbinsy <=0 is irrelevant since ROOT has a reasonable behavior in this case. Therefore, we want to ignore it.
Merge pull request #2870 from Dr15Jones/ignoreNbinsyWarningFromROOT

ROOT 5.34.17 -- Ignore new nbinsy warning from ROOT
Merge pull request #2854 from vadler/71X-consumesMigrationIIa

Consumes migration -- PhysicsTools/PatAlgos
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X