APVPhases params read from DB
Made SimpleJetCorrector truely const correct

Previously SImpleJetCorrector was changing the values held by the
TFormula it owned. This was a problem for threading since this class
is indirectly accessible from the EventSetup. Now the code modifies
a copy of the TFormula.
The member data were reordered to avoid unnecessary padding by the
compiler.
Refactored FactorizedJetCorrector

Refactored the internals of FactorizedJetCorrector into two seperate
classes, one which does the calculation and another which olds the
list of variable values. This was needed since FactorizedJetCorrector
was being used by JetCorrectors in the EventSetup and the changing of member
data is a threading problem. Now the JetCorrectors only hold onto the
FactorizedJetCorrectorCalculator and create the temporary variable value
holders as needed.
Fixed thread-safety problems with JetCorrectors

Previously the JetCorrectors used the thread-unsafe class
FactorizedJetCorrector to do the work. After refactoring the JetCorrectors
now use the thread-safe class FactorizedJetCorrectorCalculator and its
helper VariableValues class. The functionality is identical but the
temporary variables now only exist on the stack.
Change iev default so that by default no file is read.
Fixed const correctness for CosmicMuonSmoother

The static analyzer identified that CosmicMuonSmoother was returning
a non const pointer to internal member data from a const function. This
is a thread-safety issue since a routine that has a 'const' CosmicMuonSmoother
can still change the memory owned by the smoother. The fix was trivial since
no other code cared that those pointers were non-const.
The two TrajectoryBuilder classes were passing on one of the non-const
pointers so they also had to be changed to return a const pointer.
Merge pull request #3092 from Dr15Jones/makeJetCorrectorThreadSafe

JetCorrector -- Fixed thread-safety problems with JetCorrectors
Merge pull request #3023 from threus/apvcycleDBparam-71X

DQM -- APVPhases params read from DB
Merge pull request #3096 from ktf/fix-voronoi

RecoJets/JetProducers -- Change iev default so that by default no file is read.
Merge pull request #3109 from Dr15Jones/fixConstCorrectnessForCosmicMuonSmoother

RecoMuon/CosmicMuonProducer -- Fixed const correctness for CosmicMuonSmoother
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X