Merge branch 'GUIFixes5' into develop

CMakeLists.txt

GUI/coregui/Models/ModelMapper.cpp

GUI/coregui/Models/ModelMapper.h

GUI/coregui/Models/PropertyAttribute.cpp

GUI/coregui/Models/SessionItem.cpp

GUI/coregui/Models/SessionModel.cpp

GUI/coregui/Models/SessionModel.h

GUI/coregui/Models/SessionProxyModels.cpp

GUI/coregui/Models/SessionProxyModels.h

GUI/coregui/Models/SessionXML.cpp

GUI/coregui/Models/SessionXML.h

GUI/coregui/Views/PropertyEditor/ComponentBoxEditor.cpp

GUI/coregui/Views/PropertyEditor/ComponentEditor.cpp

GUI/coregui/Views/PropertyEditor/UniversalPropertyEditor.cpp

GUI/coregui/Views/PropertyEditor/UniversalPropertyEditor.h

GUI/coregui/Views/SampleDesigner/ConnectableView.cpp

GUI/coregui/Views/SampleDesigner/DesignerScene.cpp

GUI/coregui/Views/SampleDesigner/SampleViewAligner.cpp

GUI/coregui/Views/TestComponentView.cpp

GUI/coregui/mainwindow/projectdocument.cpp