Merge branch 'query_string' of https://github.com/jamesmacaulay/rack-openid into jamesmacaulay-query_string

Author: josh

lib/rack/openid.rb

@@ -198,6 +198,7 @@ def request_url(req)
         url = realm_url(req)
         url << req.script_name
         url << req.path_info
+        url << "?#{req.query_string}" if req.query_string.to_s.length > 0
         url
       end