Docker containarized

[ausrasul]

Hi, I've created a dockerfiles for this application, splitting it into three containers, ws-relay, http-server and ffmpeg stream.

The whole application can be run: $ docker-compose up -d

and stopped: $ docker-compose down

I've also added a "package.json" that will help build the npm container. And also an index.html which is a copy of your html file, but this rename is so it will be served by default.

I would later expose some of the ports to the docker-compose commandline arguments for flexibility.

Hope you would like to add this to your branch.

[RyanEwen]

Would love something like this to make it easier to get going!