[MERGE] Allow changing --[no-]trees with reconfigure (bug 145033)

[Andrew Bennetts]

Matthew D. Fuller wrote:
> I feel like I've said "Yeah, just poke around manually in
> .bzr/repository/ to change that" quite enough freakin' times.
> 
> I should note that I know neither bzrlib nor python.  However, this
> seems to work right.  And I don't think it dirties interfaces up too
> much.
> 
> I expect the major bikeshed will be the naming of the options,
> "--with-trees" and "--with-no-trees".  init-repo uses --trees and
> --no-trees.  However, reconfigure already has a --tree option, and I
> fear that --trees would get lost against that too easily.  There's
> also the matter of how --trees and --no-trees would get sorted in the
> help output (far apart).  So, I'm reasonably happy with that choice.

bb:comment

I haven't read the patch yet, but I like the idea, and I also like
your choice of option names.

-Andrew.