Changes with nginx 1.2.2 03 Jul 2012

*) Change: the "single" parameter of the "keepalive" directive is now
ignored.

*) Change: SSL compression is now disabled when using all versions of
OpenSSL, including ones prior to 1.0.0.

*) Feature: the "proxy_pass", "fastcgi_pass", "scgi_pass", "uwsgi_pass"
directives, and the "server" directive inside the "upstream" block,
now support IPv6 addresses.

*) Feature: the "resolver" directive now supports IPv6 addresses and an
optional port specification.

*) Feature: the "least_conn" directive inside the "upstream" block.

*) Feature: it is now possible to specify a weight for servers while
using the "ip_hash" directive.

*) Feature: it is now possible to use the "ip_hash" directive to balance
IPv6 clients.

*) Feature: the $status variable can now be used not only in the
"log_format" directive.

*) Bugfix: nginx could not be built with ngx_cpp_test_module; the bug
had appeared in 1.1.12.

*) Bugfix: access to variables from SSI and embedded perl module might
not work after reconfiguration.
Thanks to Yichun Zhang.

*) Bugfix: in the ngx_http_xslt_filter_module.
Thanks to Kuramoto Eiji.

*) Bugfix: memory leak if $geoip_org variable was used.
Thanks to Denis F. Latypoff.

*) Bugfix: in the "proxy_cookie_domain" and "proxy_cookie_path"
directives.

*) Bugfix: a segmentation fault might occur in a worker process on
shutdown if the "resolver" directive was used.

*) Bugfix: a segmentation fault might occur in a worker process if the
ngx_http_mp4_module was used.

*) Bugfix: in the ngx_http_mp4_module.

*) Bugfix: a segmentation fault might occur in a worker process if
conflicting wildcard server names were used.

*) Bugfix: nginx might be terminated abnormally on a SIGBUS signal on
ARM platform.

*) Bugfix: an alert "sendmsg() failed (9: Bad file number)" on HP-UX
while reconfiguration.