facebook/facebook-php-sdk-v4 — pull request #264 by SammyK (2014-11-08 02:57:47+00:00)
Title: [4.1] Added persistent data handler

Finally added a persistent data handler! :) This crosses off one more TODO item from the 4.1 master checklist #136.

I also [added documentation](https://github.com/SammyK/facebook-php-sdk-v4/blob/persistent-data-handler-interface/docs/PersistentDataInterface.fbmd) at the same time. :)