🚀 go-pugleaf

There are two uses for revert-buffer in DIRED mode:
  1) to update the DIRED buffer to reflect changes on disk
  2) to flush any pending Delete requests.

I claim that each of these is useful separately, and so would suggest
that ONE of the following be done:

1) if there are pending Delete's, request confirmation before
reverting
	Revert will lose pending Deletes.  Go ahead anyway? (y or n)

2) if there are pending Delete's, always put up a *Deletions* window 

3) have some way of preserving Delete markings over the Revert command:
	Reverting directory listing: preserve Delete marks? (y or n)

4) Give a choice (messy)

I would be happy with any of 1-2-3.  Presumably 1 and 2 are about
equally easy to implement.