Merge branch 'develop' into develop

CMakeLists.txt

Core/Instrument/IntensityDataFunctions.cpp

Core/StandardSamples/LatticeBuilder.cpp

Core/Tools/PyEmbeddedUtils.cpp

Core/Tools/SysUtils.h

GUI/coregui/Models/FitParameterHelper.cpp

GUI/coregui/Models/GUIObjectBuilder.cpp

GUI/coregui/Views/InfoWidgets/ComboSelectorDialog.cpp

GUI/coregui/Views/InfoWidgets/PythonSyntaxHighlighter.cpp

...gui/Views/InstrumentWidgets/RectangularDetectorWidget.cpp

GUI/coregui/Views/widgetbox/images/ff_Mesocrystal_32.png

GUI/coregui/Views/widgetbox/widgetbox.qrc

GUI/coregui/Views/widgetbox/widgetbox.xml

GUI/coregui/mainwindow/PyImportAssistant.cpp

ThirdParty/GUI/qcustomplot/qcustomplot.h

ThirdParty/GUI/qt-manhattan-style/CMakeLists.txt

ThirdParty/GUI/qt-manhattan-style/fancyactionbar.cpp

ThirdParty/GUI/qt-manhattan-style/settingsutils.cpp

ThirdParty/GUI/qt-manhattan-style/settingsutils.h

ThirdParty/GUI/qtpropertybrowser/qttreepropertybrowser.cpp