Changes with nginx 0.7.68 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: SSI response might be truncated after include with
wait="yes"; the bug had appeared in 0.7.25.
Thanks to Maxim Dounin.

*) Bugfix: the "sub_filter" directive might change character case on
partial match.

*) Bugfix: nginx treated large SSLv2 packets as plain requests.
Thanks to Miroslaw Jaworski.

*) Bugfix: nginx might close IPv6 listen socket during
reconfiguration.
Thanks to Maxim Dounin.