Improved shutdown behaviour - UPnP service is not restarted upon shutdown anymore

Signed-off-by: Kai Kreuzer <kai@openhab.org> (github: @kaikreuzer)
switched default OSGi configuration to recovering descriptor binders and added some xml fixing required for WeMo devices.

Signed-off-by: Kai Kreuzer <kai@openhab.org> (github: @kaikreuzer)