[gollem] Recursive Deletes

[AJ]

Looks good here, but let's see what the horde crew says.  Great job.  My 
users will be very happy with this functionality. Well worth the bounty.

AJ

 > Well, I was bored, so here's it with the three-way option. These diffs
 > are from a fresh cvs checkout not on top of what I have already sent
 > (though you'll need the manager.php and manager.html still). I'm going
 > home before I cause any more trouble - I have to sit through hours of
 > DNC traffic ;)