def broadcast(recipients)
      @node[FROM] = stream.user.jid.to_s
      recipients.each do |recipient|
        @node[TO] = recipient.user.jid.to_s
        recipient.write(@node)
      end
    end
def broadcast(recipients)
      @node[FROM] = stream.user.jid.to_s
      recipients.each do |recipient|
        @node[TO] = recipient.user.jid.to_s
        recipient.write(@node)
      end
    end
Send the stanza to all recipients, stamping it with from and
 to addresses first.