Added unwind-protect.
(wl-summary-reply-with-citation): Cite only when wl-summary-reply
returns t.
+ (wl-summary-cancel-message): Do nothing when there's no message at
+ cursor point.
+ (wl-summary-forward): Ditto.
+ (wl-summary-jump-to-parent-message): Ditto.
+ (wl-summary-reedit): Ditto.
+ (wl-summary-edit-addresses): Ditto.
+ (wl-summary-pipe-message): Ditto.
+ (wl-summary-print-message-with-ps-print): Ditto.
+ (wl-summary-print-message): Ditto.
+ (wl-summary-mark-as-important): Ditto.
+ (wl-summary-mark-as-unread): Ditto.
* wl-summary.el (wl-summary-reply): Cause an error when there's no
message at cursor point.