~ubuntu-core-dev/casper/trunk branch fixed; repair instructions

[Colin Watson]

Following up on
https://answers.launchpad.net/launchpad-bazaar/+question/39693 and
https://bugs.launchpad.net/bzr/+bug/246880 (reporting that the
lp:~ubuntu-core-dev/casper/trunk branch was broken), Robert Collins
kindly prepared a script to rewrite the inventories of that branch to
avoid referencing the ghost revisions that were causing us trouble. I've
pushed the cleaned-up branch to Launchpad, and you should now be able to
check it out without problems.

If you have an existing branch or checkout of
lp:~ubuntu-core-dev/casper/trunk, then you cannot simply repair it by
pulling or updating. Instead:

  * If you did not make any changes to casper, then move your local
    branch aside and check it out again from scratch from Launchpad.
    Your local branch is probably not sanely usable and once you have a
    fresh copy you should throw it away.

  * If you have a non-trivial branch with changes you've made that
    haven't been merged into trunk, then please e-mail me privately and
    I will help you to sort it out.

Cheers,

-- 
Colin Watson                                       [cjwatson at ubuntu.com]