Bazaar 1.6 in Hardy

[Martin Albisetti]

Currently we have bzr 1.3.1 in Hardy, and, unfortunately, a few of
small issues are creating recurring problems for users which drop by
#launchpad that have been fixed since then.
The top 2 are:

1.Users pushing to lp:project and get a "can't write to http" error,
instead of what we have en 1.4+, which is instructions that the user
should run launchpad-login first. This is especially bad since a
directory gets created in LP when you try to push through http
(probably a bug in LP), so the user has to use --use-existing-dir
*one* time, which adds to the confusion.

2. When a branch is locked, the message in 1.3 is unhelpful, and the
changes I did to it to make it clearer landed in 1.5.

We probably get 3 or 4 users per day in #launchpad with these 2
problems, so I expect a lot more being hit by these issues which are
easily avoidable.

Those 2, plus stacked branches seem like a good reason to try and push
bzr 1.6 into hardy.

I know this isn't something that is usually permitted, but I think
it's worth trying.


Thoughts?


Martin