Changes with nginx 0.6.6 30 Jul 2007

    *) Feature: the --sysconfdir=PATH option in configure.

    *) Feature: named locations.

    *) Feature: the $args variable can be set with the "set" directive.

    *) Feature: the $is_args variable.

    *) Bugfix: fair big weight upstream balancer.

    *) Bugfix: if a client has closed connection to mail proxy then nginx
       might not close connection to backend.

    *) Bugfix: if the same host without specified port was used as backend
       for HTTP and HTTPS, then nginx used only one port - 80 or 443.

    *) Bugfix: fix building on Solaris/amd64 by Sun Studio 11 and early
       versions; bug appeared in 0.6.4.