Use new GoogleOAuth2 Spec

As per #406 we've added in the openid to the GoogleOAuth2 class as per the documentation located [here](https://developers.google.com/accounts/docs/OAuth2Login).

It's important to note here that openid must be first in the list of scopes as per the documentation. @avances123 this is the pull request I referenced in IRC
Merge pull request #407 from jaitaiwan/master

Use new GoogleOAuth2 Spec