Scan the OAuth2 exchange code.
Separate auth flow from proxy server runner. Fixes #15.
Fixing TODO message.
Fixing instructions on README.
Fixing starting command doc.
Adding docs.
Moving GCE configuring function to the end for a cleaner diff.
Merge branch 'master' of github.com:GoogleCloudPlatform/docker-cloud into code-prompt

Conflicts:
	docker-cloud.go
OAuth 2 defaults for GCE should be set during GCE ops.
docker-cloud: fix listen addr text
gce: fallback on reading credentials from gcloud
gce: fix conflict
gce: merge gceConfig and gcloudConfig
Merge pull request #1 from proppy/gcloud-auth

add gcloud auth
Merge pull request #19 from rakyll/code-prompt

Separate auth flow from proxy server init