Extract common method for fetching network interface id for instance
Skeleton implementation of ReleaseAddress
Skeleton (failing) test
worker/diskformatter: new worker to create filesystems

The diskformatter worker watches for block devices
assigned to datastores owned by the unit whose agent
is running the worker. Those block devices without
a filesystem will have a filesystem created, and then
recorded in state.
worker/diskmanager: fix test name
storage: add tests for BlockDevicePath

Also, remove state/datastore.go
worker/diskformatter: moved package doc
Merge pull request #1191 from axw/worker-diskformatter

worker/diskformatter: new worker to create filesystems

The diskformatter worker watches for block devices assigned to datastores
owned by the unit whose agent is running the worker. Those block devices
without a filesystem will have a filesystem created according to the
datastore's filesystem preferences (specified in the charm metadata), and
then recorded in state.

(Review request: http://reviews.vapour.ws/r/501/)
Improved test
Merge branch 'master' into releaseaddress-ec2
Merge pull request #1194 from voidspace/releaseaddress-ec2

Environ.ReleaseAddress for ec2

Implements Environ.ReleaseAddress for the ec2 provider. This releases an IP address previously allocated with Environ.AllocateAddress.

(Review request: http://reviews.vapour.ws/r/504/)
Updated dependencies.tsv for juju/utils
Merge pull request #1195 from dimitern/update-dependencies-juju-utils

Updated dependencies.tsv for juju/utils

This is needed to apply the fix for http://pad.lv/1394524
which landed on juju/utils, but juju-core is not yet using it.

(Review request: http://reviews.vapour.ws/r/506/)