[MERGE] StackableBranch

[Ian Clatworthy]

Gary van der Merwe wrote:
> I wanted to give this a test, but the base_revision_id is not in
> bzr.dev, and the target_branch is not public. Where can I get this
> from?

Here's the URL to grab the code, pre my tweaks:
http://people.ubuntu.com/~ianc/bzr/shallow-branch/.

You'll need the loom plugin as this is the loom (after merging with
1.6beta-ish but before my tweaks).

Ian C.