* Use site id instead of hostname for events
* Use site id in domain status check
* Revert change to tracking module
* Catch more places where link generation needed updating
* Rename site_id to domain
* Drop hostname index from events
* Add and remove recipients for email reports
* Remove unused google_settings controller action
* Background job sends email reports to multiple recipients
* Add a way to unsubscribe for recipients who cannot log in
* Fix view on plausible link
* Include bounce rate in email report