Change to tracker configuration

Hello, XEmacs users, I'm finally bringing the issue tracker (tracker.xemacs.org) into the 21st century. The server is now configured to server over HTTPS, using a Let's Encrypt certificate. Currently no SSL protocols are configured, while TLS versions 1.0, 1.1, and 1.2 are accepted. Over time I will try to upgrade the TLS version (ie, refuse TLS 1.0 and then TLS 1.1), as they are known to be weak. When I do, I'll make a similar announcement. Old URLs should continue to work, being redirected from HTTP on port 80 to HTTPS on port 443. Feel free to report any problems to xemacs-beta(a)xemacs.org or to me personally at stephen(a)xemacs.org. Steve -- Associate Professor Division of Policy and Planning Science http://turnbull.sk.tsukuba.ac.jp/ Faculty of Systems and Information Email: turnbull(a)sk.tsukuba.ac.jp University of Tsukuba Tel: 029-853-5175 Tennodai 1-1-1, Tsukuba 305-8573 JAPAN