- Precise credentials are dyndns ones, not infomaniak admin ones
- Add official guide link
- Precise to set IPv4 or IPv6 address depending on which IP version you want to use
- Remove `IPV6_PREFIX` environment variable (unneeded) and remove associated code
- Update all documentation for each provider supporting IPv6
- Build IPv6 as prefix:suffix when getting it from a public IP source for each record IPv6 suffix parameter
- Automatically disable provider_ip if public ip is IPv6 and IPv6 suffix is set (they are not compatible with each other)