Facebook login

Added FB and Twitter login. However, full functionality has yet to be achieved. The user can click on the buttons and log in with the respective social media platforms. However, the app does not know how to create a new user with the authorization tokens sent back from the respective sites. I added some things to the user model. I also kicked around some stuff in the database. There might be a tiger in the fridge. I'll finish this ish tomorrow. #sorryimnotsorry