WIP: Ship 1.3.0

Do not merge until https://github.com/docker/docker/pull/8323 has been merged.

A build with https://github.com/boot2docker/boot2docker/pull/566 and https://github.com/boot2docker/boot2docker-cli/pull/272 : https://bfirsh.s3.amazonaws.com/docker-osx-installer/Docker-1.3.0-b651d59ecf.pkg
Oh, whoops. I copied and pasted from the readme and didn't notice those. ^.^