* wl-summary.el (wl-summary-delete-messages-on-buffer): Don't display

* wl-summary.el (wl-summary-delete-messages-on-buffer): Don't display
buffer line deleting progress.
(wl-summary-mode-map): Bind wl-thread-dispose, Changed binding for
wl-thread-delete.

* wl-action.el (wl-summary-register-target-mark): Fixed argument.
(wl-summary-target-mark-set-action): Fixed.
(wl-summary-define-mark-action): Fixed quotation.
(wl-summary-move-mark-list-messages): Display message.
(wl-summary-define-mark-action): Define thread functions.
(wl-summary-exec-action-refile): Changed message.
(wl-summary-exec): Ditto.