[imp] tweaking message ui

[Chuck Hagenbuch]

Quoting Jan Schneider <janmailing@gmx.de>:

> I think this one could clutter the title bar too much especially if you have 
> long subjects. The idea of seperating subject and mailbox name in the title 
> bar was the best solution so far in my opinion.

You could truncate the subject if it's too long, like we do in the mailbox 
view...

-chuck

--
Charles Hagenbuch, <chuck@horde.org>
Some fallen angels have their good reasons.