fix rdf for area terms, add area jsonld
update terms inventory
add links to new classes
add count jsonld, json-schema
fix property in vote json example
add "paired" to option code list
fix memberships property description in json schema
use org:Role as the range of Vote#role
fix type of Count#value in json-schema
fix area ttl example
switch to a single top-level identifier for vote event
update list of relating properties
add vote jsonld and json-schema
add vote event jsonld and json-schema