Patch inlines the code of the constructor and destructor of the old
QApplication subclass PolicyKitKDE and then reorders things as needed:

• KDBusService for singleton run should be started before any further init
• KLocalizedString::setApplicationDomain & i18n calls should be only done after the QApp instance has been created
• KAboutData::setApplicationData best done before doing any D-Bus activity as that relies on app metadata
• QCoreApplication::setOrganizationDomain duplicates app metadata setting from KAboutData::setApplicationData, only needed before due to latter done after first D-Bus activity
• m_listener->deleteLater() in app destructor does not make sense, as the listener object is deleted due to being QObject child of the QApplication instance