I could not get the notification handler to work at all. Issues I changed in trying to make things work:

• example json did not mention notifications.verbosity - default value gives no notification
• Documentation also did not mention notifications.verbosity
• feed.query uses after, not before (because those parameters seem to be referring to the feed order, not time)
• Does not respect notification.channels (prints to all joined channels)
• Floods IRC server, needs to delay when sending multiple messages (not sure my changes go far enough here)

I made it so that at startup it displays the most recent message (if it meets the verbosity) as well.