v2.4.0

• Migrate from xenolf/lego to go-acme/lego.

Added:

• [dnsprovider] Add DNS Provider for Domain Offensive (do.de)
• [dnsprovider] Adds information about '_FILE' suffix.

Fixed:

• [cli,dnsprovider] Add 'manual' provider to the output of dnshelp
• [dnsprovider] hostingde: Use provided ZoneName instead of domain
• [dnsprovider] pdns: fix wildcard with SANs