Remove obsolete CkfTrajectoryBuilder ESProducer configuration files
Remove obsolete TrajectoryFilter ESProducer configuration files
Remove obsolete configuration files

Running these with python produces errors indicating that they're not
used in any standard workflow and that probably they have been skipped
in some migration (maybe MeasurementTrackerEvent?).

The configurations
RecoPixelVertexing/PixelLowPtUtilities/python/MinBiasTracking_cff.py
RecoPixelVertexing/PixelLowPtUtilities/python/common_cff.py
RecoPixelVertexing/PixelLowPtUtilities/python/firstStep_cff.py
do not have problems as such, but are related to (and only to)
secondStep_cff.py and thirdStep_cff.py, which do have problems.
add parameters for dealing w/ strip mono layers (useful for confDB)
update configuration in order to be in synch w/ the main config by importing from it
Fixed uninitialized variable in PFTau3ProngSummary

PFTau3ProngSummary::Tau_Charge was returning an undefined value
since it was using a uninitialized stack variable as its charge
summing variable. The problem was found by the static analyzer.
Removed unnecessary mutables from FP420 cluster classes

These unneeded mutables were causing the static analyzer to complain.
Removing them caused no other changes to the code.
Fix unused function warning
Remove MuonRoadTrajectoryBuilder

It is unused, extremely unlikely to be used in the future, and it is
currently the only TrajectoryBuilder-deriving class constructed by
ESProducer.
Remove TYPELOOKUP_DATA_REG(TrajectoryBuilder)

No more TrajectoryBuilder ESProducts
thread-safe
Merge pull request #3462 from threus/tkdqmthreaded

DQM -- thread-safe
Merge pull request #3451 from nclopezo/fix-unused_warning_71X490-PTF

RecoPixelVertexing/PixelTrackFitting -- Fix unused function warning
Merge pull request #3446 from makortel/cleanup3211

Reco -- Post-#3211 cleanup (MuonRoadTrajectoryBuilder, configuration files)
Merge pull request #3437 from Dr15Jones/removeUneededMutableFromDataFormatsFP420Cluster

DataFormats/FP420Cluster -- Removed unnecessary mutables from FP420 cluster classes
Merge pull request #3436 from Dr15Jones/fixUninitializedVariableInPFTau3ProngSummary

DataFormats/TauReco -- Fixed uninitialized variable in PFTau3ProngSummary
Merge pull request #3421 from mtosi/from-CMSSW_7_1_0_pre6_MONOlayers

RecoTracker/TkSeedingLayers -- add parameters for dealing w/ strip mono layers (useful for confDB)
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X