Additional functions for FhirClient
Merge branch 'client-DSTU-update' of https://github.com/ewoutkramer/fhir-net-api into client-DSTU-update
Fixes to conform to updated Fhir.Api
Merge branch 'client-DSTU-update' of https://github.com/ewoutkramer/fhir-net-api into client-DSTU-update