message.el (message-tab): Mention what happens on normal tabs (bug#11297)
gnus-art.el (gnus-mime-buttonize-attachments-in-header): Number unnumbered MIME handles

gnus-art.el (gnus-article-goto-part): Find a button in the body first.
 (gnus-mime-buttonize-attachments-in-header): Number hidden buttons.
infohack.el: Work for the case makeinfo is not available

infohack.el (texinfo-format-comma): Support @comma.
 (infohack-replace-unsupported): New function.
 (infohack): Use it.
epa.texi (Caching Passphrases): Don't give argument to @item used in
 @enumerate section so as to be able to be formatted with MAKEINFO=no.

infohack.el (infohack-replace-unsupported): Fix last commit.
pop3.el: Replace "Maintainer: FSF" with the emacs-devel mailing address