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/patches-lua-nginx/300-ldl.patch

@@ -0,0 +1,21 @@
+--- a/lua-nginx/config
++++ b/lua-nginx/config
+@@ -1,5 +1,5 @@
+ ngx_feature="Lua library"
+-ngx_feature_libs="-llua -lm"
++ngx_feature_libs="-llua -lm -ldl"
+ ngx_feature_name=
+ ngx_feature_run=no
+ ngx_feature_incs="#include <lauxlib.h>"
+@@ -47,9 +47,9 @@ else
+         ngx_feature="Lua library in $LUA_LIB and $LUA_INC (specified by the LUA_LIB and LUA_INC env)"
+         ngx_feature_path="$LUA_INC"
+         if [ $NGX_RPATH = YES ]; then
+-            ngx_feature_libs="-R$LUA_LIB -L$LUA_LIB -llua -lm"
++            ngx_feature_libs="-R$LUA_LIB -L$LUA_LIB -llua -lm -ldl"
+         else
+-            ngx_feature_libs="-L$LUA_LIB -llua -lm"
++            ngx_feature_libs="-L$LUA_LIB -llua -lm -ldl"
+         fi
+ 
+         . auto/feature