* wl-news.el.in (wl-news-buffer-oldest-version): New local variable.

* wl-news.el.in (wl-news-buffer-oldest-version): New local variable.
(wl-news): Set it.
(wl-news-append-to-folder): Use it.

* wl-news.el.in (wl-news-send-news): Append to specified folder
instead of wl-default-folder.
(wl-news-append-to-folder): Show error message with specified folder.

* wl-vars.el: Follow "Left Margin Convention" in Emacs Manual.
	In most major modes, Emacs assumes that any opening
	delimiter found at the left margin is the start of a
	top-level definition, or defun. Therefore, *never put an
	opening delimiter at the left margin unless it should have
	that significance.*

* wl-draft.el (wl-draft-reply): List in r-list can contain function.