'juju status' output when no env is non-intuitive

[Jono Bacon]

When I have just detroyed my environment (or have no environment) and run 'juju status' I get:

   error: The specified bucket does not exist

This doesn't make any sense.

It should say something like this instead:

  No environment available. See http://juju.ubuntu.com/XYZ for how to create one.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: juju-core 1.10.0.1-0ubuntu3
ProcVersionSignature: Ubuntu 3.9.0-2.6-generic 3.9.2
Uname: Linux 3.9.0-2-generic i686
ApportVersion: 2.10.2-0ubuntu1
Architecture: i386
Date: Wed May 22 14:17:11 2013
InstallationDate: Installed on 2013-05-05 (17 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130504)
MarkForUpload: True
SourcePackage: juju-core
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.