+ * sb-mixi.el (shimbun-mixi-default-group-alist): Add echo group.
+
+ * mixi-utils.el (mixi-make-title): Support echo object.
+ (mixi-make-time): New function.
+ (mixi-make-date): Use it.
+ (mixi-make-id-1): Support echo object.
+ (mixi-make-tag-uri): Ditto.
+ (mixi-make-url): Ditto.
+ (mixi-make-reply-to): Ditto.
+ (mixi-send-mail): Ditto.
+