mod_pubsub_subscription: Don't block pubsub unhandled or bare JID notifications The module was marking every successfully-parsed pubsub notification as handled, which could prevent local users from receiving pubsub notifications. Now it will only eat them if both: - The notification was sent to the host JID - The notification matched a node we consider ourselves subscribed to Notifications to local (i.e. non-host) JIDs will always be let through.