Changes with nginx 1.1.0 01 Aug 2011

*) Feature: cache loader run time decrease.

*) Feature: "loader_files", "loader_sleep", and "loader_threshold"
options of the "proxy/fastcgi/scgi/uwsgi_cache_path" directives.

*) Feature: loading time decrease of configuration with large number of
HTTPS sites.

*) Feature: now nginx supports ECDHE key exchange ciphers.
Thanks to Adrian Kotelba.

*) Feature: the "lingering_close" directive.
Thanks to Maxim Dounin.

*) Bugfix: in closing connection for pipelined requests.
Thanks to Maxim Dounin.

*) Bugfix: nginx did not disable gzipping if client sent "gzip;q=0" in
"Accept-Encoding" request header line.

*) Bugfix: in timeout in unbuffered proxied mode.
Thanks to Maxim Dounin.

*) Bugfix: memory leaks when a "proxy_pass" directive contains
variables and proxies to an HTTPS backend.
Thanks to Maxim Dounin.

*) Bugfix: in parameter validaiton of a "proxy_pass" directive with
variables.
Thanks to Lanshun Zhou.

*) Bugfix: SSL did not work on QNX.
Thanks to Maxim Dounin.

*) Bugfix: SSL modules could not be built by gcc 4.6 without
--with-debug option.