Hi all
the demo server has for now enabled database based preferences. It is great to show the feature, however this has problem that all users share same preferences (eg. language and theme settings), which was not the case before. And this also leads to situation when new user coming to demo will see something looking really weird, because the user before has chosen strange language and theme which does not play well with current code.
For these reasons I decided to disable database based preferences on demo server.