* +config.root+ configures the root path of the application.
+* +config.secret_token+ used for specifying a key which allows sessions for the application to be verified against a known secure key to prevent tampering.
* +config.serve_static_assets+ configures Rails to serve static assets. Defaults to _true_, but in the production environment is turned off. The server software used to run the application should be used to serve the assets instead.
* +config.time_zone+ sets the default time zone for the application and enables time zone awareness for Active Record.