- if local ip cannot be detected or is invalid then do not exit ddns-scripts #2950,
using multiple url's to detect local ip not jet implemented
- change spdns.de update url and add sydyn.de inside services file #2991
- move transfer- and lookup-program detection to dynamic_dns_functions.sh
so run once at startup in stead of at every transfer/lookup
- add khost, drill and hostip to verify_host_port() function
- updated tld_names.dat
Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>