Google.php - updates

Because of the new scopes, the Google will no longer support the scope https://www.googleapis.com/auth/userinfo.email after Sept. 1, 2014.

1. Add call people.getOpenIdConnect, which returns the email property in OIDC-compliant format.
2. Add property emails, https://developers.google.com/+/api/latest/people#emails, which returns the emails array.

https://developers.google.com/+/api/openidconnect/getOpenIdConnect
https://developers.google.com/+/api/oauth#login-scopes
https://developers.google.com/+/api/latest/people#emails
http://hybridauth.sourceforge.net/userguide/Profile_Data_User_Profile.html