Roundup works nicely with Apache's "AuthType Basic" passing through the
REMOTE_USER to roundup.  Our web interface is not anonymously available;
users must have a LDAP account.  Under this setup we prefer to have the
Login box and Logout link not appear at all as they just confuse users.

Currently I edit html/page.html and comment out the Login form and
Logout link.  It would be more elegant and upgrade-friendly if this
could be done via a flag in config.ini rather than editing the html
file.  It's easy enough to edit the html file, but others might find the
feature useful too.