[MERGE] Nested Trees: revert

[Ian Clatworthy]

Ian Clatworthy has voted resubmit.
Status is now: Resubmit
Comment:
At first glance, this doesn't look right to me. If foo is a subtree, 
what happens when "bzr revert foo/bzr.py" is run. If I'm reading the 
change made to workingtree.py correctly, it looks like it rolls back all 
changes to all subtrees instead of just the one on foo? At a minimum, I 
think we need a test added for the "explicitly revert a file in a 
subtree leaves other subtrees as they were".

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C49D64B03.6010205%40aaronbentley.com%3E
Project: Bazaar