[loggerhead/MERGE] Fix deprecated methods in bzrlib

[Martin Albisetti]

On Tue, Jun 10, 2008 at 12:16 AM, Michael Hudson
<michael.hudson at canonical.com> wrote:
> Out of interest, do you know what the oldest version of bzr that this will
> work with is?

I don't really, but get_graph() was introduced in revision 2490.2.21,
2007-06-08. So it should at least be in 1.0, but that's a wild guess.

Off to prepare the next patch....