branches out for review + all: rename service => worker https://codereview.appspot.com/6345084/ + s3: fix regions that require lowercase buckets. https://codereview.appspot.com/6343080/ + environs/ec2: enable local ec2 provisioner tests https://codereview.appspot.com/6355090/ + cmd/jujud: add firewater outline https://codereview.appspot.com/6333067/