Refactoring of the getChatbotResponse function
Define a new section for the chatbot specific code
Add anonymous function wrapper
Keep track of compatible versions of the app

This allows us to change the format of the knowledge base substantially
and automatically reset the knowledge base when it is incompatible with
our new algorithms.
Minor style fixes
Fix for keeping track of compatible app versions
Fix readme
Add basic fileserver using node.js
Put client side code in the public dir
Use the 'send' module for basic file serving
Add func to convert input to tokens
Generate chatbot responses using tokens
Remove defunct code
Remove code meaningless if we do serverside
Use callback for getChatbotResponse
Write 'cat' in node.js
Add the underscore server module
Get chatbot working on server
Minor cleanup work on the server-side chatbot
Use callbacks for computations on the server