Created a basic routing system

I created basic router and route classes and a routes file to load
routes from.
Moved Twilio and Redis into components

I created components for Twilio and Redis.
Created a basic controller system

I created an application controller that other controllers can subclass
Added a keyword controller

I added a controller for keywords to allow them to be viewed.
Refactored Twilio endpoint to controller

I moved the Twilio endpoint code to a controller
Added a message controller for sending messages

I added message controller for sending messages.
Moved newrelic.js

I moved newrelic to config