It needs to be kept as up-to-date as possible, so it autoupdates every 6+ hours or so to ensure the database is relatively up-to-date.
Like the previous commit, I'd only really recommend it if the other stuff isn't getting the job done.
git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4257 316c924e-a436-60f5-8080-3fe189b3f50e
