make CSCTriggerPrimitivesProducer inherit from edm::one::producer because it accesses non-const static CSCTriggerGeometry
Refactor InputInfo to easily get the list of DAS queries.

This slightly refactors the API of InputInfo to allow easier access to
the actual DAS query(s) given a workflow.
Merge pull request #2587 from ktf/get-das-queries

Misc updates -- Refactor InputInfo to easily get the list of DAS queries.
Merge pull request #2384 from gartung/L1Trigger-CSCTriggerPrimitives-edm-one-producer

Multithreading fixes -- Make CSCTriggerPrimitivesProducer inherit from edm::one::producer becaus...
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X