conn-location: remove suspicious GArray assumptions
conn-location: remove suspicious GArray assumptions

What dbus-glib wants is precisely a GArray of guint, so give it one of
those. A GArray of an enum is not necessarily the same thing
(in practice, we tend to assume that enums are the same size as ints,
but ISO C does not guarantee this).

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