Moved Database information out into Config files
Allowed Port to be chosen from env Vars
Add inclusion for DELETE and PUT routes
Move the TODO model into models/todo,.js
Move Routes into their own definition

Modularizing the app to increase readability
Modularize our Angular App

Split it into Controllers and Create a service to handle getting the
TODOS.

Reusable code is the bomb!
Add some validation

Stop the form submitting blank data