[sup-talk] Some patches

[William Morgan]

Reformatted excerpts from nicolas.pouillard's message of 2009-03-18:
> - "Handle a nil 'default_attachment_save_dir' option"
>   I think that this one is a regression due to the introduction of
>   this option.

Heh, I also fixed this one independently, so it's already in master.

> - "Fix a recurring bug about killed threads."
>   Could be handy to have this feature working :)

Ok, I've applied this to master. I'm going to aim for releasing tomorrow
or the day after, so now's a good time to try your favorite features and
make sure they still work!
-- 
William <wmorgan-sup at masanjin.net>