Changes with nginx 0.5.28 17 Jun 2007

    *) Security: the "msie_refresh" directive allowed XSS.

    *) Bugfix: a segmentation fault might occur in worker process if the
       "auth_http_header" directive was used.
       Thanks to Maxim Dounin.

    *) Bugfix: a segmentation fault occurred in worker process if the
       CRAM-MD5 authentication method was used, but it was not enabled.

    *) Bugfix: a segmentation fault might occur in worker process if the
       eventport method was used.