Initializes basic express server in express.js

Sets express server to serve requests to the root on port 3000.
Adds server-side controller and route for index.html

Adds a render method in the index controller. This method is than
routed to be called on get requests to the root directory.
Adds Compression and Method-override as dependencies

Compression is added to eventually be used to compress files in
production.

Method-override is added to allow for PUT and DELETE server requests.