Right now, the navbar has a link to "CVS Instructions" which goes to an
https url, with the obvious cert-madness consequences. I suggest we
delete it, or replace it with a page that gives links to instructions
about all the supported version control systems, if there is one.
Regarding the cert stuff,
1) the "New User" link still leads to an https url. New users are at
least as likely to click on that as "Login".
2) The text before the login form now reads:
You are about to enter a secure https website, using a SSL
certificate signed by CAcert.org
