pontoon: don't return infos about services not exported over tubes
pontoon: don't return infos about services not exported over tubes

coherence-project/Coherence,sreichholf/python-coherence,ismaelgaudioso/Coherence,sreichholf/python-coherence,furbrain/Coherence,opendreambox/python-coherence,coherence-project/Coherence,opendreambox/python-coherence,unintended/Cohen,ismaelgaudioso/Coherence,furbrain/Coherence,unintended/Cohen