Changes with nginx 1.2.3 07 Aug 2012

*) Feature: the Clang compiler support.

*) Bugfix: extra listening sockets might be created.
Thanks to Roman Odaisky.

*) Bugfix: nginx/Windows might hog CPU if a worker process failed to
start.
Thanks to Ricardo Villalobos Guevara.

*) Bugfix: the "proxy_pass_header", "fastcgi_pass_header",
"scgi_pass_header", "uwsgi_pass_header", "proxy_hide_header",
"fastcgi_hide_header", "scgi_hide_header", and "uwsgi_hide_header"
directives might be inherited incorrectly.

*) Bugfix: trailing dot in a source value was not ignored if the "map"
directive was used with the "hostnames" parameter.

*) Bugfix: incorrect location might be used to process a request if a
URI was changed via a "rewrite" directive before an internal redirect
to a named location.