UPDATE BY Anthony
=================

FaceBook Login
--------------

- sandbox mode: set your computer to this setting:

		127.0.0.1                sant.com
		127.0.0.1                www.sant.co

		/mac : sudo vi /private/etc/hosts
		/append the above line and restart your machine

- DATABASE CHANGES for user fbid
- login by facebook
	- authorization by user in facebook
	- accept and pass to our server
	- get user First name, last name, email
- security: serverside facebook exchange recheck fbid and its session
- automaticlly register user if not exist
- 1st time dispose session for FaceBook
- auto redirect to login after that.