disable data.xqm and friends #454
Description
I suggest that we leave these user/guest/admin-related models and modules on the 'master' branch while we switch to 'main' under Bx. (That's with reference to #452 )
This way, the code is going to stay accessible for when needed, but we won't carry over its security baggage and won't have to worry about any code injections and the like. Not that we need to worry about that right now (I hope) but why leave inactive sensitive code lying about.