Signed-off-by: Florian Eckert <fe@dev.tdt.de>

Fix shellcheck SC2230
> which is non-standard. Use builtin 'command -v' instead.

Once applied to everything concerning OpenWrt we can disable the busybox
feature `which` and save 3.8kB.

Signed-off-by: Paul Spooren <mail@aparcar.org>

- remove Cloudflare v1 protocol support #6084 #6519
- fix goip.de update url #6448 #6519
- change Cloudflare v4 to read "Proxied" from current setting at Cloudflare Dashboard #5097 #6364 #6505
- fix replace of password inside logfile #6568
- remove myself as PKG_MAINTAINER

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

- tld_names.dat.gz
  - rename to public_suffix_list.dat.gz
  - (re)created during build
  - new location /usr/share
- move services files to /etc/ddns
- new services
  - CloudFlare.com-v4 using API-Version 4 without using public_suffix_list.dat
  - GoDaddy.com
  - both depending on cURL package
  - both with modified syntax for option domain ( NEW: [host[.subdom]@]domain.tld )
- new service
  - Now-DNS.com formerly Now-IP.com
- service afraid.org now supports key-auth and basic-auth
- new command line options for dynamic_dns_updater.sh and dynamic_dns_updater.sh
- adapted ddns.init and ddns.hotplug to new command line options
- renaming config options inside section global

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

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

- add support of knsupdate (update_nsupdate.sh
- url update easydns.com
- add some service answers
- alphabetic reorder services files for easier reading
- rename services/provider (Makefile postinst handle /etc/config/ddns)
 -- freedns.afraid.org -> afraid.org
 -- free.editdns.net -> editdns.net
 -- domains.google.com -> google.com
 -- spdns.de -> spdyn.de
 -- strato.de -> strato.com
- new provider (looking in deep into https://sourceforge.net/projects/inadyn-mt project)
 -- dyn.com (= dyndns.org)
 -- ddnss.de
 -- dhis.org
 -- dnspark.com (IPv4 only)
 -- dynsip.org (IPv4 only)
 -- dynv6.com
 -- joker.com (IPv4 only)
 -- loopia.com (= loopia.se)
 -- sitelutions.com (IPv4 only)
 -- system-ns.com (IPv4 only)
- new provider (looking in deep into /etc.defaults/ddns_provider.conf file for Synology DiskStation published at https://gist.github.com/ntrepid8/6653274)
 -- able.or.kr (IPv4 only)
 -- ddo.jp (IPv4 only)
 -- dnsmadeeasy.com (IPv4 only)
 -- oray.com (IPv4 only)
- new provider (looking in deep into https://github.com/ipfire/ddns project)
 -- all-inkl.com
 -- desec.io
 -- domopoli.de (IPv4 only)
 -- opendns.com (IPv4 only)
 -- udmedia.de
 -- xlhost.de (IPv4 only)
- new provider (looking in deep into https://github.com/yaddns/yaddns project )
 -- dyndns.it (IPv4 only)

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

* new service "bind-nsupdate" using nsupdate to directly updates a PowerDNS or Bind server via nsupdate.
  suggested by Jan Riechers (Pull #957) many thanks!
* updated tld-names.dat

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