Changes with nginx 0.8.54 14 Dec 2010
*) Bugfix: if there was a single server for given IPv6 address:port pair, then captures in regular expressions in a "server_name" directive did not work.
*) Bugfix: a segmentation fault might occur in a worker process, if the "auth_basic" directive was used. Thanks to Michail Laletin.
*) Bugfix: compatibility with ngx_http_eval_module; the bug had appeared in 0.8.42.