GabbleRoster: save up any pending roster edit IQs until we receive the roster
GabbleRoster: save up any pending roster edit IQs until we receive the roster

TpBaseContactList only calls our methods after the roster has been
received, so this should only happen for alias changes.

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