Release 2.3.5

Fix issue which caused typed object values to itemListElement to look like an incompatible value.

Release 2.3.4

Updates for schema.org 3.1 ("makemake").

• Don't use Rest::Client::Cache, which is not as important given JSON-LD Context caching.
• Use JSON-LD Preloaded Contexts (json-ld-preloaded).