* can be used with API of hosting.de
* can also be used with ICANN registrar http.net
* needs just API key and endpoint
* support wildcard certificates
The _get_records function currently returns the first 100 records. As our TXT is added most recently, if you have > 100 records it will not be returned.
I've changed the function to sort by ID DESC, so it will always return the latest 100 records.
on Ubuntu 14.04.1 LTS if nsupdate runs without port number given it treated argument following server name as port number.
and throws error:
```
port 'update' is not numeric
syntax error
```