* src/modest-tny-send-queue.c:

* src/modest-tny-send-queue.c:
        * (modest_tny_send_queue_get_msg_id): Now the message id is
          generated using the subject and the date received field.
          This way, the id is the same in outbox and sentbox folder.
          Then we can remove the message from send queue.
        * (_on_msg_has_been_sent): now we set the message as seen, so
          that the message is added to sent box as already readed. We
          also avoid showing the information banner when the message is
          not in this send queue (fixes NB#66511).

pmo-trunk-r3304