Initial reverse-auth support for Facebook
fixed some typos

Signed-off-by: Thorsten Eurich <thorsten@eurich.de>
Google: Handle missing $primary property for placesLived

Google returned the following for my profile:

    [placesLived] => Array
        (
            [0] => stdClass Object
                (
                    [value] => Mödling
                )

        )

So there is no primary property of `$c`.

The code now checks if there is a `$primary` property and otherwise directly uses the `$value` if it exists.
Add twitter reverse-auth support
Merge pull request #165 from willerz-dotank/master

iOS reverse-auth support for Facebook
Merge pull request #167 from eurich/test

typos fix
Merge pull request #168 from lanort/patch-1

Google: Handle missing $primary property for placesLived
Merge pull request #171 from hybridauth/master

updates for 2.2.0