bug#7651: 23.2.91; Rmail doesn't allow displaying text attachments conveniently

[Eli Zaretskii]

> From: Kenichi Handa <handa@m17n.org>
> Cc: 7651@debbugs.gnu.org
> Date: Wed, 12 Jan 2011 15:22:14 +0900
> 
> I've just committed several changes.  In it, I made the
> tagline something like this (~~~~ indicate underlined part):
> 
> [1:text/plain Hide]
>               ~~~~
> [2:image/png Show Save:temp.png (XXkB)]
>              ~~~~      ~~~~~~~~
> 
> and made the button label itself toggles between "Hide" and
> "Show".
> 
> Another change is to bind tab and backtab simply to
> forward-button and backward-button respectively because all
> taglines has at least Hide or Show button now.
> 
> Please try this version for a while.  I'll update NEWS and
> info when it is found that this version is good enough for
> the next release.

Thanks, will do.