xroofit → roofit Relation

File in roofit/xroofit	Includes file in roofit/roofit
src / xRooFit.cxx	inc / RooBifurGauss.h
src / xRooFit.cxx	inc / RooGamma.h
src / xRooFit.cxx	inc / RooGaussian.h
src / xRooFit.cxx	inc / RooLognormal.h
src / xRooFit.cxx	inc / RooPoisson.h
src / xRooNLLVar.cxx	inc / RooGaussian.h
src / xRooNLLVar.cxx	inc / RooPoisson.h
src / xRooNode.cxx	inc / RooGaussian.h
src / xRooNode.cxx	inc / RooPoisson.h