Create simple lobby system and games that track status.
Refactor game service and style lobby.
Init express 4.0

See #32
Using `npm i express-generator -g` to build 4.0 project

There are some new concepts with express 4.0 and it makes more sense to
generate the scaffolding off the bat.
Serve up files using express static for now

See #33
Add engines and Procfile

See #33
Merge branch 'feature/express-heroku' into develop

Closes #33
Update readme:

- with heroku endpoints
- with addition install and start instructions
Update readme:

- with heroku endpoints
- with addition install and start instructions

Closes #32
Merge branch 'heroku-express' of github.com:wlaurance/Stories-With-Friends into heroku-express
Merge pull request #34 from wlaurance/heroku-express

Heroku express