This is a sub-issue of the longstanding #113 Geo* cleanup. WGS84 is implied (and used in the specs ours was based on) but wasn't mentioned. Also GeoCoordinates is hard to re-use / extend in extensions since address was a property of a Place that had the GeoCoordinates as value of a 'geo' property. We should allow the simple option of a GeoCoordinates directly carrying 'address' property.
Cleanup fixes for GeoCoordinates and its properties.
Mentioned WGS84 on the properties, and marked 'address' as expected on GeoCoordinates.
I forgot to include GeoShape here too - doing both for consistency. See also #808 which supports address having simple textual fields for when data is unstructured.
Tweaked #802 - inclusion of GeoShape to work with 'address'.
Fixed in http://schema.org/docs/releases.html#v2.2 - thanks all