Changes with nginx 1.5.4                                         27 Aug 2013

*) Change: the "js" extension MIME type has been changed to
"application/javascript"; default value of the "charset_types"
directive was changed accordingly.

*) Change: now the "image_filter" directive with the "size" parameter
returns responses with the "application/json" MIME type.

*) Feature: the ngx_http_auth_request_module.

*) Bugfix: a segmentation fault might occur on start or during
reconfiguration if the "try_files" directive was used with an empty
parameter.

*) Bugfix: memory leak if relative paths were specified using variables
in the "root" or "auth_basic_user_file" directives.

*) Bugfix: the "valid_referers" directive incorrectly executed regular
expressions if a "Referer" header started with "https://".
Thanks to Liangbin Li.

*) Bugfix: responses might hang if subrequests were used and an SSL
handshake error happened during subrequest processing.
Thanks to Aviram Cohen.

*) Bugfix: in the ngx_http_autoindex_module.

*) Bugfix: in the ngx_http_spdy_module.
Changes with nginx 1.5.5                                         17 Sep 2013

*) Change: now nginx assumes HTTP/1.0 by default if it is not able to
detect protocol reliably.

*) Feature: the "disable_symlinks" directive now uses O_PATH on Linux.

*) Feature: now nginx uses EPOLLRDHUP events to detect premature
connection close by clients if the "epoll" method is used.

*) Bugfix: in the "valid_referers" directive if the "server_names"
parameter was used.

*) Bugfix: the $request_time variable did not work in nginx/Windows.

*) Bugfix: in the "image_filter" directive.
Thanks to Lanshun Zhou.

*) Bugfix: OpenSSL 1.0.1f compatibility.
Thanks to Piotr Sikora.
Changes with nginx 1.5.6                                         01 Oct 2013

*) Feature: the "fastcgi_buffering" directive.

*) Feature: the "proxy_ssl_protocols" and "proxy_ssl_ciphers"
directives.
Thanks to Piotr Sikora.

*) Feature: optimization of SSL handshakes when using long certificate
chains.

*) Feature: the mail proxy supports SMTP pipelining.

*) Bugfix: in the ngx_http_auth_basic_module when using "$apr1$"
password encryption method.
Thanks to Markus Linnala.

*) Bugfix: in MacOSX, Cygwin, and nginx/Windows incorrect location might
be used to process a request if locations were given using characters
in different cases.

*) Bugfix: automatic redirect with appended trailing slash for proxied
locations might not work.

*) Bugfix: in the mail proxy server.

*) Bugfix: in the ngx_http_spdy_module.
Merge remote-tracking branch 'dev-nginx/master' into feature

* dev-nginx/master:
  Changes with nginx 1.5.6                                         01 Oct 2013
  Changes with nginx 1.5.5                                         17 Sep 2013
  Changes with nginx 1.5.4                                         27 Aug 2013
Merge branch 'feature'

* feature:
  Changes with nginx 1.5.6                                         01 Oct 2013
  Changes with nginx 1.5.5                                         17 Sep 2013
  Changes with nginx 1.5.4                                         27 Aug 2013