Fix comment on meta ontology
Rename schema_resource to schema
Add a note about dbd:rdf_uri vs. rdf:uri
Add DbdOnto::Rdf with only 1 property (type)
Rename data/used_schema_predicates_list.csv
Remove unneeded require
Rename data/used_schema_predicates_data.csv
rdf:type is used
Version 0.0.15 (Add DbdOnto::Rdf)