Merge pull request #1036 from jwuttke/par1

CHANGELOG

Core/Aggregate/IInterferenceFunction.cpp

Core/Aggregate/IInterferenceFunction.h

Core/Aggregate/InterferenceFunction2DLattice.cpp

Core/Aggregate/InterferenceFunction2DLattice.h

Core/Aggregate/InterferenceFunction2DParaCrystal.cpp

Core/Aggregate/InterferenceFunction2DParaCrystal.h

Core/Aggregate/InterferenceFunction2DSuperLattice.cpp

Core/Aggregate/InterferenceFunction2DSuperLattice.h

Core/Aggregate/InterferenceFunctionFinite2DLattice.cpp

Core/Aggregate/InterferenceFunctionFinite2DLattice.h

Core/Aggregate/InterferenceFunctionHardDisk.cpp

Core/Aggregate/InterferenceFunctionHardDisk.h

Core/Beam/FootprintGauss.cpp

Core/Beam/FootprintGauss.h

Core/Beam/FootprintSquare.cpp

Core/Beam/FootprintSquare.h

Core/Beam/IFootprintFactor.cpp

Core/Beam/IFootprintFactor.h

Core/Computation/ConstantBackground.cpp