Change sidekick logging after end of each crawljob from WARNING to CONFIG

Each time when the HarvestControllerServer terminates normally after finishing
a crawljob The sidekick reports this incident as a warning.
The level here should be changed from WARNING to CONFIG.
Jun 21 2005 5:43:54 PM dk.netarkivet.monitor.MonitorServer visit
WARNING: From:Sidekick:./conf/start_harvester_8082.sh_kb-test-har-001.kb.dk:8082
Jun 21 2005 5:48:18 PM dk.netarkivet.sidekick.SideKick run
WARNING: HarvestControllerServer has terminated.
NOTE: This bug is originally from Bugzilla bug_id=362.