hasAppPermission function to replace deprecated users_hasAppPermission Facebook function
Updated the getFacebookFriendsUids function to use the new REST API
Delete everything related to registering feeds, deprecated a long time ago
Remove roaming console.logs
Merge branch 'master' of https://github.com/theodo/sfFacebookConnectPlugin

Conflicts:
	lib/sfFacebook.class.php
	web/js/sfFacebookConnect.js