Feature/heroku

Adding [Heroku](http://heroku.com/) configuration for development deployment (it's way easier than self-hosting options right now).

There is also ton of documentation (including the [setup guide](https://devcenter.heroku.com/articles/getting-started-with-nodejs) that I followed) available for [using NodeJS with Heroku](https://devcenter.heroku.com/articles/nodejs-support).