birtona/rent-a-role-model — pull request #31 by johanness (2014-06-19 19:11:40+00:00)
Title: store xing id in user

right now the `active_email` is used to link the user with XING. In the future this should be the `xing_id`. After all users have updated their profile with the `xing_id`, we can switch to use it as primary XING identifier.