Update for juju/names @ ae9c025
Update for juju/names f41f9c1
Update to juju/names 7bf36b6
Update for juju/names refactor part 1
Merge branch 'master' of https://github.com/juju/juju into 103-juju-names-refactor

Conflicts:
	cmd/juju/deploy.go
	juju/api.go
Merge pull request #61 from frankban/external-mgosuite

Use the external MgoSuite.

Mostly mechanical.
Remove the testing/mgo* bits which are now in github.com/juju/testing.
Add testing.Certs to be used when registering the MgoSuite tests.
Merge branch 'master' of https://github.com/juju/juju
gofmt
Merge pull request #53 from davecheney/103-juju-names-refactor

Update for juju/names refactor part 1

This change is a companion to juju/names @ 3d041ba7

The visible change is previously new the NewTagType methods would return a string, now they return a Tag implementation which you call `String()` on.

This is an intermediate step. The next PR, for example, will replace many of the string comparisons with comparisons of tags directly.
envions/configstore: Storage.List()

Add the List() method to the Storage interface. List lists all
the existing environments in storage.
Merge pull request #35 from waigani/list-store-interface

envions/configstore: Storage.List()

Add the List() method to the Storage interface. List lists all
the existing environments in storage.
Spread units across availability zones

Common code for ec2 and openstack, and any
other provider that supports availability
zones similarly.

Two top-level functions are added to
provider/common: BestAvailabilityZones and
DistributeInstances. The former returns the
availability zones with the fewest instances
in the specified group. The latter returns
the set of instances that may be added to
the specified group without reducing the
availability zone spread optimality.
provider/ec2: implement AZ spread

Implement common.ZonedEnviron, and call
the common BestAvailabilityZone and
DistributeInstances functions to implement
automatic availability zone spread.
Merge pull request #55 from axw/provider-ec2-zone-spread

Implement automatic availability zone spread

There are two components to this PR:
 - new functionality in `provider/common` to enable automatic spread of instances across AZs;
 - updates to `provider/ec2` to make use of this common code.

The openstack provider will be updated in a followup.