Merge pull request #41 from gpospelov/DetectorCleanup

Core/Export/ExportToPython.cpp

Core/Fitting/FitObject.cpp

Core/Fitting/FitObject.h

Core/Fitting/FitSuite.cpp

Core/Fitting/FitSuiteObjects.cpp

Core/Fitting/FitSuiteObjects.h

Core/Fitting/FitSuitePrintObserver.cpp

Core/Instrument/DetectorFunctions.cpp

Core/Instrument/DetectorFunctions.h

Core/Instrument/IDetector2D.cpp

Core/Instrument/IDetector2D.h

Core/Instrument/Instrument.cpp

Core/Instrument/Instrument.h

Core/Instrument/RegionOfInterest.cpp

Core/Instrument/RegionOfInterest.h

Core/Instrument/SimulationArea.cpp

Core/Instrument/SimulationArea.h

Core/Instrument/SimulationAreaIterator.cpp

Core/Instrument/SimulationAreaIterator.h

Core/Simulation/GISASSimulation.cpp