enable absolute scopes for google connection

Hi!

in many cases you need to ask for privileges for other scopes than the defaults. These scopes have a different url (http://sag-3.blogspot.com/2013/04/list-google-oauth-scopes.html), so I made some changes to be able to use any scopes.

My editor deleted some white spaces as well, sorry for that.

Please review it and pull it it looks fine!

Thanks!

mat