We are rapidly updating schema.org due to the Coronavirus situation.

See #2490 for 7.0, #2501 for 7.01, #2517 for 7.02

This release:

• (COVID-19 response fast track) Create and document a representation of CDC CSV fields #2521 (COVID-19) Adds a document and schema definitions capturing a 1:1 representation of a CDC CSV format for hospital reporting.
• webFeed should be expected on SpecialAnnouncement #2519 (COVID-19) Clarifies that /webFeed can be expected on the /SpecialAnnouncement type.
• (COVID-19 response fast track) Create and document a representation of CDC CSV fields #2521 (COVID-19) representation of CDC hospital reporting CSV format.
• Make 3DModel a subtype of MediaObject rather than CreativeWork #2518 Updated pending draft of /3DModel to place it under /MediaObject rather than clutter /CreativeWork

(the 3DModel change did not need fast-tracking and can be reverted if anyone has concerns, but seemed trivial and useful)