* wl-summary.el (wl-summary-replace-status-marks): Disable

* wl-summary.el (wl-summary-replace-status-marks): Disable
interactive use.
(wl-summary-reedit): Check message existence at first.
(wl-summary-mark-line): Fix doc, return value is indefinite.

* wl-highlight.el (wl-highlight-message): Arranged.

* wl-highlight.el (wl-highlight-summary-current-line): Abolish
unused 1st and 2nd arguments. Abolish 3rd argument `temp-too' and
check temp-mark by wl-summary-temp-mark always.
(wl-highlight-summary): Change accordingly.
* wl-summary.el (wl-summary-mark-as-read-all)
(wl-summary-delete-cache, wl-summary-set-score-mark)
(wl-summary-mark-as-unread, wl-summary-unmark)
(wl-summary-mark-line, wl-summary-mark-as-read)
(wl-summary-mark-as-important): Ditto.

* wl-highlight.el (wl-highlight-summary-window): Re-calculate the
end of the window if possible.
* wl-summary.el (wl-summary-sync-update): Support lazy
highlighting.