* elmo-mime.el (elmo-mime-display-as-is-internal): Insert decoded

* elmo-mime.el (elmo-mime-display-as-is-internal): Insert decoded
header.

* wl-vars.el (wl-summary-mode-line-format-spec-alist): Added spec "m".
(wl-message-mode-line-format-spec-alist): Ditto.
(wl-message-mode-line-format): Ditto.
(wl-summary-mode-line-format): Ditto for docstring.
(wl-summary-no-mime-folder-list): Fix typo.

* wl-util.el (wl-current-message-buffer): Call
`wl-message-buffer-display' with `as-is' and `all-header' as nil.

* wl-summary.el (wl-summary-buffer-display-as-is): New buffer-local
variable.
(wl-summary-mode-map): Bind 'M' as `wl-summary-toggle-mime' instead
of `wl-summary-redisplay-no-mime'.
(wl-summary-goto-folder-subr): Set up wl-summary-buffer-display-as-is.
(wl-summary-toggle-mime): New function.
(wl-summary-redisplay-all-header): Rewrite.
(wl-summary-redisplay-no-mime): Ditto.
(wl-summary-redisplay-internal): Added argument `as-is' and
`all-header'.

* wl-refile.el (wl-refile-default-from-folder-path-separator):
New variable.
(wl-refile-guess-functions): Added wl-refile-guess-by-from at the
bottom.
(wl-refile-guess-by-history): Don't use wl-refile-guess-by-from.
(wl-refile-guess-by-from): Rewrite to fix the bug which inserts
"/" unconditionally.

* wl-mime.el (wl-draft-yank-current-message-entity): Use
wl-mime-preview-follow-no-mime for as-is content.
(wl-mime-preview-follow-no-mime): New function.
(wl-mime-preview-follow-current-region): Fixed parenthesis.

* wl-message.el (wl-message-redisplay): Removed argument `display-type'
and added `as-is', `all-header'.
(wl-message-buffer-display): Ditto.
(wl-message-buffer-display-type): New function.