nginx: import from packages, add myself as the maintainer

This adds the nginx package from the old svn package fee. I adopt
the licensing information and will maintain the package in the future.
This request also updates nginx to the last stable version 1.4.7. It further
adds support for
 - naxsi (the ngix web application firewall)
 - syslog module
 - http upstream check module
 - support for the haproxy Proxy Protocol (this way nginx can see the real
   ip address behind haproxy)
Building was tested with target x86_64, ar71xx and avr32.

Signed-off-by: Thomas Heil <heil@terminal-consulting.de>

net/nginx/files/nginx.proxyprotocol.example

@@ -0,0 +1,40 @@
+worker_processes  1;
+pid /tmp/nginx.pid;
+daemon off;
+master_process off;
+error_log stderr debug_core;
+
+events {
+ debug_connection <YOUR IPv4>;
+ debug_connection <YOUR IPV6>;
+ worker_connections  1024;
+}
+
+http {
+ default_type  application/octet-stream;
+ client_body_temp_path /tmp/body 1;
+
+ access_log /tmp/nginx_access.log;
+
+ server {
+#  listen       8082 ssl;
+# proxy protocol configuration for nginx 1.4.x:
+  listen       8082 accept_proxy_protocol=on;
+# same with spdy enabled:
+#  listen       8082 spdy ssl accept_proxy_protocol=on;
+  listen       [::]:8082 ipv6only=on;
+  ssl_certificate /your/certificate;
+  ssl_certificate_key /your/key;
+  server_name  localhost;
+# proxy protocol configuration for nginx 1.2.x:
+#  accept_proxy_protocol on;
+ 
+  location / {
+   proxy_pass        http://127.0.0.1:8084;
+   proxy_set_header  X-Real-IP  $remote_addr;
+   proxy_connect_timeout 10s;
+   proxy_read_timeout 10s;
+   send_proxy_protocol on;
+  }
+ }
+}