ringaccount/opendht: returned reflective IP may be IPv6
Issue generated from Tuleap's migration script. Originally submitted by: Adrien Béraud (adrienberaud)
The OpenDHT getPublicAddress method allows Ring to know its external IP, as seen by other OpenDHT peers.
By default, the method returns both IPv4 and IPv6 addresses. Since IPv6 is not supported yet, if an IPv6 is returned it can cause ICE failures.