How to change maildir from mail/ to Roundcube/?

[googlah]

Hey guys,

I'm going to be quite right on questioning here. Right now, when logging in to Roundcube it puts all mails to /home/user/mail/. How do I change this value to /home/user/Roundcube? It would be much easier to know what's what. Thanks in advance.

And the stable release rules.