* mixi.el (mixi-make-comment): Add the COUNT slot.

* mixi.el (mixi-make-comment): Add the COUNT slot.
(mixi-comment-count): New function.
(mixi-topic-comment-list-regexp): Fix regexp.
(mixi-event-comment-list-regexp): Ditto.
(mixi-get-comments): Follow the change above.
* mixi-utils.el (mixi-make-author): Add the ADD-COMMENT-COUNT argument.
* sb-mixi.el (shimbun-mixi-add-comment-count-to-author): New user
option.
(shimbun-mixi-get-headers): Use it.