We do have a cron system. It ought not be too hard to construct a
cron job to expire old log entries.
The latest SVN revision adds a cronjob to truncate the log file size
every day, keeping only the logs of the last 13 days. This is not
configurable and it's only a short term fix anyway, but I figure it's
better than having a log table exhaust your memory.
Users of the 0.3.3 release might want to TRUNCATE TABLE habari__logs;
OPTIMIZE TABLE habari__logs; for now.
-Matt