new ML: juju-dev at lists.ubuntu.com

[William Reade]

Hi all

In the hope that irrelevant details don't end up chasing users away from
this list, we've set up juju-dev at lists.ubuntu.com; please feel free to
join us there for technical discussions, status emails, and anything
else that seems unhelpful to the broader audience for this list.

I've added a few of you already; I urge anyone else who's interested to
come and join us there, but to please to bear in mind the differing
purposes of these lists, and to keep user-relevant discussions right
here where they belong.

Cheers
William