Align specifications with international standards

[gerardsn]

We are developing at the cutting edge of technology, so many of the international standards are still in development or even in a draft status when we start using them. This inevitably means that we will deviate from the current status of a standard from time to time. This issue keeps track of these deviations so we can resolve them over time.

• Support DID URL dereferencing according to DID specifications #244