Re: mailbox_save_attributes

[Sergey Poznyakoff]

> Done.
> mailbox_save_attributes()
> The code is ugly, fortunately the rewrite of the lib will purge
> some of the cruft.

Great! Finally, delete/expunge in imap4d works across invocations :^)
I have also added mailbox_save_attributes() to mail/, so it also
preserves message attributes on exit.

I just thought that maybe the mbox_expunge() could do the same work, in
this case we'll make closing the mailbox a lot faster. Or maybe both
mbox_expunge() and mbox_save_attributes() could use the same function
that will do the actual work. This is for the new API, of course...

-Sergey