setup app
ignore rubymine stuff
add index.html
add stylesheet
move stylesheets
move index.html
add middleware for static files
ignore node_modules
add socket.io dependency
load socket.io-client
add socket.io

Initialize an instance of an `http` server and pass the `app` function
as a callback to handle requests. Then, initialize an instance of
socket.io by passing it the `http` server object. Listen for
`connection` events.