Merge branch 'distrib5' into 'develop'

Base/Pixel/RectangularPixel.cpp

Base/Pixel/RectangularPixel.h

Base/Pixel/SphericalPixel.cpp

Base/Pixel/SphericalPixel.h

Core/Fitting/SimDataPair.cpp

Core/Simulation/UnitConverterUtils.cpp

Core/Simulation/UnitConverterUtils.h

Device/Detector/IDetector.h

Device/Detector/RectangularDetector.cpp

Device/Detector/SimpleUnitConverters.cpp

Device/Detector/SphericalDetector.cpp

Device/InputOutput/OutputDataReadWriteNicos.cpp

Device/Unit/Axes.h

Device/Unit/AxisNames.h

Device/Unit/IUnitConverter.cpp

Device/Unit/IUnitConverter.h

GUI/coregui/DataLoaders/AbstractDataLoaderResultModel.h

GUI/coregui/DataLoaders/AutomaticDataLoader1DResultModel.h

GUI/coregui/DataLoaders/QREDataLoader.h

GUI/coregui/DataLoaders/QREDataLoaderProperties.cpp