- navi2ch-net-send-request now sends User-Agent when posting.
- coding-system is now auto-detected in order of cp932,
shift_jis-2004, and shift_jis.
- navi2ch-oyster now uses tls.el, not ssl.el.
japanese/navi2ch-emacs21 because the former is deprecated and going to be removed
soon. Adjust it to point to emacs21 by default.
* Adjust the slave port japanese/navi2ch-xemacs21-mule to point to the newly
created master port japanese/navi2ch-emacs21.