Merge pull request #863 from jwuttke/doxy2

Core/Aggregate/IDistribution1DSampler.cpp

Core/Aggregate/IDistribution1DSampler.h

Core/Aggregate/IDistribution2DSampler.cpp

Core/Aggregate/IDistribution2DSampler.h

Core/Aggregate/InterferenceFunctionFinite3DLattice.cpp

Core/Basics/PhysicalConstants.h

Core/Beam/FootprintFactorGaussian.cpp

Core/Beam/FootprintFactorSquare.cpp

Core/Beam/IFootprintFactor.cpp

Core/Beam/IFootprintFactor.h

Core/Computation/DepthProbeComputation.cpp

Core/Export/INodeUtils.h

Core/Fitting/FitObjective.cpp

Core/Fitting/FitObserver.h

Core/Fitting/FitPrintService.cpp

Core/Fitting/SimDataPair.cpp

Core/Fitting/SimDataPair.h

Core/Instrument/DetectorElement.cpp

Core/Instrument/PyArrayImportUtils.cpp

Core/Instrument/PyArrayImportUtils.h