0.7.0

Added

• allow custom fields to be shown in the assignment list
• consistently check if assigned contacts still meet the criteria of the experiment
• notify admins when matcher does not find any more contacts
• UI to change role permissions

 Changed

• restructured experiment page
• remove utility functions from guardian
• add a hint to filter template form
• change experiment contact person from admin to email address

Fixed

• unique constraints for tenant database label
• only return distinct experiments on the dashboard
• allow assignment of contact by admin when registration is disabled
• create, update, and delete permissions for the experiment filter