Hey Alexei,
> I did (using this e-mail address), and got the message: "The user has been
> created and the password was sent by email." However, I did not receive any
> e-mail with the password.
>
Sorry for the trouble, seems like nobody tested the sign up process after
the server migration yet. It seems like the e-mail sender configuration is
missing.
Unfortunately, I don't know the right config, so I can't simply fix it, but
I've sent a message to Hannes, he probably knows.
Regards, Niklas