* 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
* Create shared links UI
* Show shared links in a list on settings page
* Show dropdown for each shared link
* Show icon actions for shared links
* Log user in when they click non-password-protected shared link
* Actually authenticate using a password
* Delete shared links
