So we have to include it separately. It's a little more text.

See https://github.com/OAI/OpenAPI-Specification/issues/417

* The "old" Destination is now in destination-any but still called Destination.
* There is now a PublicDestination (w/o contactInfo and callback) and a PrivateDestination
* Removed notice about missing fields depending on scope (since its now obvious from the schema)

Reasoning: It't not version 20 but version 2.

400: useless for a GET request
401: handled by API-Gateway

Resolves: #55
Resolves: #58