Fix applicator meta-schema for unevaluatedProperties

it is possible to have both $ref and $recursiveRef in the traversed schema path

(cherry picked from commit 36d9fe5)

Fix a raw "$" in two patterns and add a missing "$defs" in three paths

(cherry picked from commit 1b48546)

(cherry picked from commit 325e3c4)

(cherry picked from commit 4af51fc)

The spec allows values of false. This fixes the schema to match the spec.

(cherry picked from commit 568e20f)

missing updates to existing 2019-09 metaschemas

The links.json schema uses `$recursiveRef` wrong. In fact,
`$recursiveRef` is not capable of expressing the relationship that was
intended. With this version, schemas in the `links` keyword are pinned
to the 2019-09 hyperschema dialect even if `$recursiveRef` is used to
extend the 2019-09 hyperschema dialect. While not exactly what was
intended, this covers all but advanced use-cases.

Refs: json-schema-org/website#201

…abulary-from-vocabs-2019-09

remove `$vocabulary` from vocab meta-schemas (2019-09)

…19-09

Update the link to the JSON Schema website for 2019-09