1. User can login through Twitter login / Guest login
2. Guest login store user's email and age into MySQL (no password needed)
3. Twitter Oauth will retrieve latest 2k tweets and stores into MongoDB
4. Able to view books based on category (e.g. horror, romance) from MongoDB
5. Able to retrieve books from MongoDB based on book id
6. Connect MongoDB to Express JS (must be able to run on PhoneGap Desktop App)