Update to Google Oauth 2.0 login 

per the instructions at:
  https://developers.google.com/+/api/auth-migration#userinfo

This has not been extensively tested, but has been lightly tested in our application.
Since I don't have access to your credentials, it's difficult for me to update this test.

pac4j test 10:26:33 [main] ERROR o.p.o.c.BaseOAuth20Client - No credential found