Changing the client for a webdomain fails

When using the domains option you can move a domain to a different client via Client -> Domains -> domain.

This works fine for mail_domains and soa's but even though the web_domain table is updated it is not changed in the document_root's directory structure on disk.

In the sites_web_vhost_domain_edit event handler we use datalogUpdate for a number of records, but a straight sql UPDATE for most cases of the web_domain. This causes the backend cron runner (on a slave server) to not notice the change.