def send_to_recipients(stanzas, recipients)
      recipients.each do |recipient|
        stanzas.each do |el|
          el[TO] = recipient.user.jid.to_s
          recipient.write(el)
        end
      end
    end
def send_to_recipients(stanzas, recipients)
      recipients.each do |recipient|
        stanzas.each do |el|
          el[TO] = recipient.user.jid.to_s
          recipient.write(el)
        end
      end
    end
Send the stanzas to the local recipient streams, stamping a full JID as
 the to address. It's important to use full JIDs, even when sending to
 local clients, because the stanzas may be routed to other cluster nodes
 for delivery. We need the receiving cluster node to send the stanza just
 to this full JID, not to lookup all JIDs for this user.