Merge pull request #255 from stikonas/master

src/calamares/progresstree/ProgressTreeModel.cpp

src/libcalamares/GlobalStorage.cpp

src/libcalamares/PythonHelper.cpp

...res/kdsingleapplicationguard/kdsingleapplicationguard.cpp

src/libcalamares/utils/CalamaresUtils.cpp

src/libcalamares/utils/Retranslator.cpp

src/libcalamaresui/Branding.cpp

src/libcalamaresui/Branding.h

src/libcalamaresui/Settings.cpp

src/libcalamaresui/modulesystem/ModuleManager.cpp

src/libcalamaresui/modulesystem/ModuleManager.h

src/libcalamaresui/modulesystem/ViewModule.cpp

src/libcalamaresui/utils/DebugWindow.cpp

src/libcalamaresui/utils/PluginFactory.cpp

src/libcalamaresui/utils/qjsonitem.cpp

src/modules/keyboard/KeyboardPage.cpp

src/modules/keyboard/keyboardwidget/keyboardpreview.cpp

src/modules/license/LicensePage.cpp

src/modules/license/LicenseViewStep.cpp

src/modules/locale/LocaleConfiguration.cpp