Added some functions to manipulate client instance
Construct instance in Client::getInstanceReference
Added function to retrieve Facebook account
Bug fix - corrected function call.
Reworked FB account retrieval attempt
Bug fix - oops. forgot a semi-colon
Use Stormpath\Http
Got the functions correct to retrieve a FB account
Added Google login functions
Change social login requests to use POST, not GET
Merge branch 'social-login'