Delayed expunge / undeleting messages

[Simon Matter]

> A bunch of people already pointed out unexpunge, so I'll point out
> that the delayed expunge / unexpunge functionality doesn't help if
> the user deletes a whole folder.  See:
>
> 	https://bugzilla.andrew.cmu.edu/show_bug.cgi?id=2871
>
> for the problem report and a patch for a proposed solution.

I also found out that delayed_expunge doesn't help if a whole folder got
deleted. So if something like your proposed solution gets included that
would really be a very nice feature.

Simon