muc: Expunge reference to incoming chat state 'gone'.
muc: Expunge reference to incoming chat state 'gone'.

    A client SHOULD ignore <gone/> notifications received from other room
    occupants.

  — XEP-0045 §5.5 Use in Groupchat
    <http://xmpp.org/extensions/xep-0085.html#bizrules-groupchat>

I intend to expunge this state from WockyMuc accordingly.

mlundblad/telepathy-gabble,Ziemin/telepathy-gabble,jku/telepathy-gabble,mlundblad/telepathy-gabble,mlundblad/telepathy-gabble,jku/telepathy-gabble,jku/telepathy-gabble,Ziemin/telepathy-gabble,Ziemin/telepathy-gabble,Ziemin/telepathy-gabble