ddns-scripts: update to 2.7.6-1

- 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>

net/ddns-scripts/samples/ddns.config_sample

@@ -29,31 +29,31 @@ config ddns "global"
 	# and LuCI web application.
 	# For codes see man pages of date command.
 	# default: "%F %R" (ISO 8601 format)
-#	option date_format "%F %R"
+#	option ddns_dateformat "%F %R"
 
 	###########
 	# set run directory to use for .pid and .update files
 	# there will be a separate file for every running service section
 	# default: "/var/run/ddns"
-#	option run_dir "/var/run/ddns"
+#	option ddns_rundir "/var/run/ddns"
 
 	###########
 	# set log directory to use for .log files
 	# there will be a separate file for every running service section
 	# default: "/var/log/ddns"
-#	option log_dir "/var/log/ddns"
+#	option ddns_logdir "/var/log/ddns"
 
 	###########
 	# set number of lines stored in .log file before auto truncated
 	# default: "250" lines
-#	option log_lines "250"
+#	option ddns_loglines "250"
 
 	###########
 	# Whether to allow to send Private/Special IP's to the DDNS provider
 	# IPv4: 0.x, 10.x, 127.x, 172.16.x-172.31.x, 192.168.x
 	# IPv6: ::, Fxxx:
 	# default: "0"	disabled
-#	option allow_local_ip "0"
+#	option upd_privateip "0"
 
 #####################################################################
 # DDNS service settings