UC-79 adding email to required information retrieved from FB
UC-79 using a singleton pattern for the fb preferences page
merging uconn-2 into UC-79
Merge branch 'uconn-2' into UC-79

Conflicts:
	extensions/wikia/FacebookClient/scripts/preferences.js
UC-79 updating comment
Merge pull request #5462 from Wikia/UC-79

UC-79 adding email to required information retrieved from FB