Merge branch 'ld-recvertex-refit' into 'master'

Phys/TrackRefitting/CMakeLists.txt

Phys/TrackRefitting/src/ReplaceTracksInRecVertex.cpp

Phys/TrackRefitting/src/SelectTracksForRecVertices.cpp

Tr/PatPV/CMakeLists.txt

Tr/PatPV/src/AdaptivePV3DFitter.cpp

Tr/PatPV/src/LSAdaptPV3DFitter.cpp

Tr/PatPV/src/LSAdaptPVFitter.cpp

Tr/PatPV/src/PVOfflineTool.cpp

Tr/PatPV/src/RecVertexAsExtendedPrimaryVertexFitter.cpp

Tr/PatPV/src/SimplePVFitter.cpp

Tr/PrKalmanFilter/src/KalmanFilterTool.cpp

Tr/TrackInterfaces/include/TrackInterfaces/IPVFitter.h