(lyskomd_expect): New proc.
(spawn_lyskomd): Use -f, not -d.
(lyskomd_start): Check all output from lyskomd.
(lyskomd_fail_start): Ditto.
(lyskomd_death): New argument: reason. Check all output from lyskomd.
(talk_to): Set current_talk_what and current_talk_nr, so that
	lyskomd_expect can restore the old settings.  Set proper
	line_leader for lyskomd.