UDS branches plenary

[Martin Pool]

I think it would be great to have a plenary at UDS-O about what people
are doing with Ubuntu branches.  I have put a proposal in
<https://wiki.ubuntu.com/UDS-O>.  We have to make a plan for something
to say in 15m that will be exciting, relevant, not waffly, and not a
vastly-truncated tutorial.

[this mail's a bit of a placeholder; more tomorrow; or say what you
think we should cover]

Martin