ddns-scripts: Update to Version 2.1.0-1 see description

- fixed postinst and prerm in Makefile
- implementation of provider specific update scripts into services and
services_ipv6 file.
	first Provider "no-ip.com"	- Thanks to DarkStarXxX for
request and testing
- finished uci/ddns wiki at http://wiki.openwrt.org/doc/uci/ddns
- rewritten retry management
- rewritten logging including following Issue 469
	https://github.com/openwrt/packages/issues/469
- stop running sections on hotplug ifdown event (like start on ifup)
- implement trap detection
	also kill "sleep" child processes
	SIGHUP to reload configuration (not really reloading, simply
starting a new process)
	/etc/init.d/ddns reload implemented
- code optimization
- new provider LoopiaDNS.se	Issue 494
	https://github.com/openwrt/packages/issues/494

Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>

net/ddns-scripts/files/etc/init.d/ddns

@@ -1,16 +1,26 @@
 #!/bin/sh /etc/rc.common
 START=95
+STOP=10
 
 boot() {
 	return 0
 }
 
+reload() {
+	killall -1 dynamic_dns_updater.sh	# send SIGHUP
+}
+
+restart() {
+	stop
+	sleep 1	# give time to shutdown
+	start
+}
+
 start() {
 	. /usr/lib/ddns/dynamic_dns_functions.sh
 	start_daemon_for_all_ddns_sections
 }
 
 stop() {
-	killall -9 dynamic_dns_updater.sh
+	killall dynamic_dns_updater.sh
 }
-