Changes with nginx 1.5.2                                         02 Jul 2013

*) Feature: now several "error_log" directives can be used.

*) Bugfix: the $r->header_in() embedded perl method did not return value
of the "Cookie" and "X-Forwarded-For" request header lines; the bug
had appeared in 1.3.14.

*) Bugfix: in the ngx_http_spdy_module.
Thanks to Jim Radford.

*) Bugfix: nginx could not be built on Linux with x32 ABI.
Thanks to Serguei Ivantsov.
upgrade: original nginx 1.5.2

Signed-off-by: paulyang <y_y@neusoft.com>
update version

Signed-off-by: paulyang <y_y@neusoft.com>