authentication on trac.nginx.org

[Sergey Budnevitch]

Hello.

As you know we used openid to authenticate users on trac.nginx.org. Unfortunately many openid providers vanished or ceased to support openid.
Last week I added oauth-based authentication instead of openid one, with four auth providers: google, yandex, github and stack exchange.
Old google accounts with gmail addresses were converted to the new format, but other were kept intact. If you are an author of the ticket, comment
or was subscribed to the ticket update, please write me off list, I’ll link old and new account.