====== Authentication Authorization ======
  * http://www.javacodegeeks.com/2013/02/why-oauth-it-self-is-not-an-authentication-framework.html
  * http://ocpsoft.org/opensource/creating-a-facebook-app-the-webservice-and-the-game/
  * http://www.developerscrappad.com/1814/java/java-ee/rest-jax-rs/java-ee-7-jax-rs-2-0-simple-rest-api-authentication-authorization-with-custom-http-header/

===== facebook api =====
api/me

<code>
"{"id":"10204168897008774",
  "email":"mildewvn@yahoo.com",
  "first_name":"Thuy",
  "gender":"male",
  "last_name":"Dang",
  "link":"https://www.facebook.com/app_scoped_user_id/10204168897008774/",
  "locale":"en_US","name":"Thuy Dang","timezone":2,"updated_time":"2014-06-22T13:21:29+0000","verified":true}"
</code>