Before this patch a message got a failed status after 3 minutes
(3 retries x 1 min). Moreover, if no devices was found, the message
is keeped in the cache and wait for the next reboot. So it results in
extremely long sending status, which is not really useful for the user.

With this patch, the message fails to send after approximately one
minute, if the user is connected and we do not receive an answer
or if no device is found.

Change-Id: I41171be2ebfebc424f96b4a4d42c360ad35ede86