mailman list info links, and archives

Hi,

Home pages of many projects have links to their mailing lists information page like
https://common-lisp.net/cgi-bin/mailman/listinfo/cl-plus-ssl-devel

Currently the links in this form are broken. Probably it makes sense to map such URLs
to the current location:
https://mailman.common-lisp.net/cgi-bin/mailman/listinfo/cl-plus-ssl-devel

Also, the archives only include messages since April 2014.
As far as I know the archives from the old incarnation of common-lisp.net
still exist. It would be nice to restore them. (It's a reminder,
I suppose cl.net admins are aware about the archives problem)

Best regards,
- Anton