Release 3.3.0

Updates for version 3.3.0 with minimum Ruby version 3.0.

Release 3.2.1

• Explicitly add include to RDF::Enumerable::Enumerator.
• Update documentation links to use gh-pages, and add action to publish gh-pages from Yard docs.

Release 3.2.0

• Minimum Ruby version now 2.6.

Release 3.1.1

• Update doap:license to https://unlicense.org/1.0/.
• Use Statement#terms instead of #to_quad to retrieve all non-statement terms from embedded statements. This supports RDF* datasets.
• Better use of keyword arguments (internally) and note that options other than :canonicalize are ignored.

3.1.0

• Updates for 3.1 release and Ruby 2.7 calling sequences.
• Remove support for Ruby < 2.4.

Release 3.0.0

Synchronize with RDF.rb 3.0 release.

Release 2.2.0

Update minumum ruby version to 2.2.2. See ruby-rdf/rdf#307.

2.0.0.beta1

Finish 2.0.0.beta1