Merge pull request #339 from gpospelov/develop

GUI/coregui/Models/SessionItem.cpp

GUI/coregui/Models/SessionItem.h

GUI/coregui/Models/SessionItemData.cpp

GUI/coregui/Models/SessionItemData.h

GUI/coregui/Models/SessionItemUtils.cpp

GUI/coregui/Models/SessionItemUtils.h

GUI/coregui/Views/JobWidgets/ParameterTuningDelegate.cpp

GUI/coregui/utils/GUIHelpers.cpp

GUI/coregui/utils/GUIHelpers.h

Tests/UnitTests/GUI/Comparators.cpp

Tests/UnitTests/GUI/Comparators.h

Tests/UnitTests/GUI/TestComboProperty.h

Tests/UnitTests/GUI/TestExternalProperty.h

Tests/UnitTests/GUI/TestGUI.cpp

Tests/UnitTests/GUI/TestMapperForItem.h

Tests/UnitTests/GUI/TestMaterialPropertyController.h

Tests/UnitTests/GUI/TestOutputDataIOService.h

Tests/UnitTests/GUI/TestProjectDocument.h

Tests/UnitTests/GUI/TestProxyModelStrategy.h

Tests/UnitTests/GUI/TestSessionItem.h