Deploy envoy to cloud

[lambdabaa]

The v0.1.0 release will introduce features that are worth showing non-engineers and having game players experiment with! That makes now a great time to come up with a janky way to unleash envoy upon the world.

• One idea is to use heroku (see https://github.com/oortcloud/heroku-buildpack-meteorite)
• Another is to use docker container hosting