nginx: bump to version 1.9.13

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

net/nginx/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nginx
-PKG_VERSION:=1.9.9
-PKG_RELEASE:=2
+PKG_VERSION:=1.9.13
+PKG_RELEASE:=1
 
 PKG_SOURCE:=nginx-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://nginx.org/download/
-PKG_MD5SUM:=50fdfa08e93ead7a111cba5a5f5735af
+PKG_MD5SUM:=e7502dc170277597ca73eb53c359c771
 PKG_MAINTAINER:=Thomas Heil <heil@terminal-consulting.de>
 PKG_LICENSE:=2-clause BSD-like license