Issue https://github.com/OpenACalendar/OpenACalendar-Web-Core/issues/273 - Check variables in template; when showing "closed by sysadmin" some aren't set
Issue https://github.com/OpenACalendar/OpenACalendar-Web-Core/issues/272 - Calendar Listing Sites lists sites closed by sysadmin
Issue https://github.com/OpenACalendar/OpenACalendar-Web-Core/issues/268 - User looking at event, change attendance, users attending does not reload in chrome
Issue https://github.com/OpenACalendar/OpenACalendar-Web-Core/issues/267 - If users says attending or may attend event and ticket URL set popup message "get tickets from x"