memcached: import from packages, add myself as the maintainer

This adds the memcached package from the old svn package fee. I adopt
the licensing information an will maintain the package in the future.
This request also updates memcached to the last stable version 1.4.20.
Building was testet with target x86_64, ar71xx and avr32

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

net/memcached/files/memcached.init

@@ -0,0 +1,27 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2010-2011 OpenWrt.org
+
+START=80
+
+start_instance () {
+	local section="$1"
+
+	config_get user "$section" user
+	config_get maxconn "$section" maxconn
+	config_get listen "$section" listen
+	config_get port "$section" port
+	config_get memory "$section" memory
+
+	service_start /usr/bin/memcached -d -u ${user:-nobody} \
+		-c ${maxconn:-1024} -l ${listen:-0.0.0.0} \
+		-p ${port:-11211} -U ${port:-11211} -m ${memory:-64}
+}
+
+start() {
+	config_load 'memcached'
+	config_foreach start_instance 'memcached'
+}
+
+stop() {
+	service_stop /usr/bin/memcached
+}