api: document socket
Merge pull request #814 from jonboulle/master

api: implement query parameters
api: serve discovery document from API

This creates a new discoveryResource endpoint to serve fleet's discovery
document. To facilitate this, the schema generator script now embeds a
copy of the discovery document inside a go file so it can be bundled
into the binary.
schema: change rootUrl to unusable, update documentation
Merge pull request #778 from robszumski/api-socket

api: document socket
Merge pull request #794 from jonboulle/794_discovery_json

API: should serve up its own discovery json
example-deployment: fix missing @ in start command