- renamed (lower case) filenames and servicenames for no-ip.com, cloudflare.com and bind_nsupdate including modifing existing configurations #2375
- updated tld_names.dat

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

This is necessary when there are multiple records for the same domain,
otherwise the script will overwrite the first one returned by the API.
It has the secondary benefit of allowing faster updates by performing
only one API call instead of two.

In case 'rec_id' is not set the script behaves exactly as before.

Signed-off-by: Leonardo Brondani Schenkel <leonardo@schenkel.net>

modified source directory structure
  - files for production files
  - samples for sample files (not installed in final build)
modified Makefile
  - separate options for additional provider scripts
  - remove comments and empty lines from final build
add IPv4 100.64/10 (RFC 6598) and 169.254/16 (RFC 5735) to the range of default blocked IP's.
new option "bind_network" to force GNU Wget or cURL to use specific network/interface for communication
new "domains.google.com" as IPv4 DDNS provider #822

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

restructure startup of dnymaic_dns_updater.sh
 - first run load_all_config_options (it returns 1 if SECTION_ID not found) #779
 - set all defaults if necessary
 - verify if username and/or password is needed inside update_url #779
 - remove wait - will be done by retry_interval and retry_count if communication fails
provider specific update scripts
 - verify if username/password are needed
services_ipv6
 - added freedns.afraid.org
 - IPv6 should work due to their documentation
minor fixes

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

* remove CHANGELOG from distribution
* fix syslog output printing "\n" or other formating chars
* ddns configuration
    - new UCI-config value ddns.global.allow_local_ip "0" or "1"
(default "0") - (OpenWrt Ticket 18642)
* dynamic_dns_functions.sh
- new function split_FQDN() splits a given FQDN into host,
(registerable) domainname, and TLD using
https://publicsuffix.org/list/effective_tld_names.dat
- verify_host_port() use BIND host, if installed
- verify_host_port() not detecting ip, if already given
- fixed regexp for IP detection from nslookup's answer - (OpenWrt
Ticket 16363)
- support ddns.global.allow_local_ip to allow sending non public IP's
to DDNS provider like 127.x, 192.168.x.x or fxxx - (OpenWrt Ticket
18642)
* new file tld_names.dat
- used by dynamic_dns_functions.sh inside split_FQDN() function to
find valid TLD's
* update_cloudflare.sh
- modified subdomain/domain splitting using split_FQDN()
- modified support for AA12.09 (json_get_keys())
- minor fixes and cleanup
- many thanks to Aaron Tanner for testing

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

- moved /usr/lib/ddns/dynamic_dns_lucihelper.sh from luci-app-ddns into this package
	(Github openwrt/luci issue 251)
	(OpenWrt Trac tickets 18326 18347)
- fix: dynamic_dns_update.sh did not loop
	(OpenWrt Trac ticket 18336)
- add provider cloudflare.com IPv4 and IPv6 (Thanks to Paul for support and testing)
	(OpenWrt Trac ticket 12500)
- modified detection, if dynamic_dns_fuctions are used by dynamic_dns_lucihelper.sh
- redirect stdout of wget,curl,host,nslookup,nc etc to /tmp/ddns_$$.dat and *.err instead of variables
- extended error detection in get_local_ip function
- modified verify of option ip_script to allow parameters, when calling
- add provider selfhost.de IPv4
- add provider no-ip.pl (nothing to do with no-ip.com)
	(Github openwrt/packages issue #542)
	IPv4 (tested) and also added for
	IPv6 (NOT tested) because client IP is autodetected be provider
- add getlocalip_sample.sh as sample script for usage of
	option ip_source 'script'  together with
	option ip_script '/usr/lib/ddns/getlocalip.sh -4'
- cleanup whitespaces at line ends

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