Update juju/testing dependency

Fixes LP #1325707.
networker API facade
fix dependencies
remove extra files
Add a display name for users.
Merge pull request #6 from howbazaar/user-display-name

This branch is imported from the bzr branch which was reviewed.

Will get reviews here too
Update and rename CONTRIBUTING to CONTRIBUTING.md

Updated to be compatible with github markdown mode.
provider/ec2: support zone= placement directive

Support "add-machine zone=us-east-1a" in ec2,
for explicit availability zone placement.
Merge pull request #21 from niedbalski/master

- Formated to be compatible with markdown
- Renamed CONTRIBUTING to CONTRIBUTING.md
juju/testing: close clients before API server

There's a bug in JujuConnSuite where the teardown
of clients occurs after the server is destroyed.
This sometimes causes the client's Close method
to error, because it cannot write the websocket
0xFF frame.

Fixes https://bugs.launchpad.net/juju-core/+bug/1293697
Merge pull request #23 from axw/lp1293697-jujuconnsuite-closeorder

There's a bug in JujuConnSuite where the teardown
of clients occurs after the server is destroyed.
This sometimes causes the client's Close method
to error, because it cannot write the websocket
0xFF frame.

Fixes https://bugs.launchpad.net/juju-core/+bug/1293697
Backout change to use replica sets for local provider
Merge pull request #24 from voidspace/backout-local-replicaset

This PR backs out the change that switched replica sets on for local provider. This is the change that broke local-deploy-precise-amd64 CI.
Switch to juju/schema.

Remove the schema package.
Fix import paths.
Update dependencies.
Merge pull request #25 from frankban/remove-schema

Remove the schema package.
Fix import paths.
Update dependencies.
Merge pull request #8 from axw/provider-ec2-zone-placement

Support "add-machine zone=us-east-1a" in ec2, for explicit availability zone placement.
split SetUpTest functions
fix comment
Switch to juju/names.

Mechanical branch.
Remove the names package.
Fix import paths.
Update dependencies.
Fix a package test.
minor fixes