nmap: bump version to 7.31

Signed-off-by: Nuno Goncalves <nunojpg@gmail.com>

net/nmap/Makefile

@@ -13,13 +13,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nmap
-PKG_VERSION:=7.30
+PKG_VERSION:=7.31
 PKG_RELEASE:=1
 PKG_MAINTAINER:=Nuno Goncalves <nunojpg@gmail.com>
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=http://nmap.org/dist/
-PKG_MD5SUM:=8d86797d5c9e56de571f9630c0e6b5f8
+PKG_MD5SUM:=f2f6660142a777862342a58cc54258ea
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=COPYING