PhoneFormatter.js - new file
 - Created function to format twilio phone number to database formatted.

TwimlGenerator.js - new file
 - This file will be used to generate twiml used throughout the application.
 - Currently created a dial function for dial twiml.

testFormatters.js - new file
 - Created a test to test the PhoneFormatter file and function.

Incoming.js
 - Modified the handleIncoming function to:
    - convert the incoming number to a correct format.
    - Lookup the application associated with that number.
    - Find the fallback staffer for that application.
    - generate a dial twiml for that fallback staffers number.

Done by: Sean and Shiv