Logout landing page
When leaving a BBB meeting, we should provide a page to communicate which options users have to pay for the service. From there, point users to pro.fairteaching.net to start a new meeting.
Let's simply use https://www.fairkom.eu/fairteaching
So changed at all BBB servers in /usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties
bigbluebutton.web.logoutURL=https://fairkom.eu/fairteaching