Upgrade from 1.13.7 to 1.13.8.

While I'm here remove needless patch.

<ChangeLog>

*) Feature: now nginx automatically preserves the CAP_NET_RAW capability

in worker processes when using the "transparent" parameter of the
"proxy_bind", "fastcgi_bind", "memcached_bind", "scgi_bind", and
"uwsgi_bind" directives.

*) Feature: improved CPU cache line size detection.

Thanks to Debayan Ghosh.

*) Feature: new directives in vim syntax highlighting scripts.

Thanks to Gena Makhomed.

*) Bugfix: binary upgrade refused to work if nginx was re-parented to a

process with PID different from 1 after its parent process has
finished.

*) Bugfix: the ngx_http_autoindex_module incorrectly handled requests

with bodies.

*) Bugfix: in the "proxy_limit_rate" directive when used with the

"keepalive" directive.

*) Bugfix: some parts of a response might be buffered when using

"proxy_buffering off" if the client connection used SSL.
Thanks to Patryk Lesiewicz.

*) Bugfix: in the "proxy_cache_background_update" directive.

*) Bugfix: it was not possible to start a parameter with a variable in

the "${name}" form with the name in curly brackets without enclosing
the parameter into single or double quotes.

</ChangeLog>