basically rewrite the server again.

I am such a noob. Arrays worked for simple stuff.

What I learned:
 - I don't want to use cookies.
 - I don't want to use redis or mongo or anything. Heroku is a complete
   scam when it comes to pricing for realtime apps.
 - I don't care if people
 - I don't care about implementing a load balancing server in the
   future.

 References https://github.com/ridhoq/pro-grid/pull/56

 adds node-uuid as a dependency

 removes server side throttling for now