public NodeAffiliate addNoneAffiliation(JID jid) {
        return addAffiliation(jid, NodeAffiliate.Affiliation.none);
    }
Adds a new affiliation or updates an existing affiliation of the specified entity JID
to become a none affiliate. Affiliates of type none are allowed to subscribe to the node.

@param jid the JID of the user with affiliation "none".
@return the newly created or modified affiliation to the node.
xmppserver/src/main/java/org/jivesoftware/openfire/pubsub/Node.java