zquestz/omniauth-google-oauth2 — pull request #24 by afrankel (2012-04-26 18:58:40+00:00)
Title: Added option to pass in approval_prompt as part of the url request

I needed a way to force an approval_prompt in certain cases (not all). Therefore I couldn't just change my config in devise.rb, instead I added the ability to set an additional request parameter on the URL.