Josh and Naveen follow up on SMART app registration 

SMART on FHIR App Registration: Follow-up Discussion
In this follow-up from the discussion at • Developer experience: ... we review:
* App registration process at fhir.epic.com
* SMART on FHIR "asymmetric" client authentication at hl7.org/fhir/sm...
* USCDI updates including USCDIv3 at www.healthit.g...
* CARIN Blue Button FHIR profiles for Coverage and ExplanationOfBenefit at hl7.org/fhir/u...
* Humana FHIR sandbox at fhir.humana.co...