Finish 1.0.3
Finish 1.1.0
Finish 1.1.1.
Remove explicit dependency on rdf-microdata to not needlessly pull in Nokogiri dependency.
Finish 1.1.2.
Update vocabularies and contexts.
Finish 1.1.3
Finish 1.1.3.1. Implement callback modes for #each_statement and #each_triple.
Update for RSpec 3.0
Define PTR and RDFA vocabularies.
Improve spec matchers.
Work around emergent JRuby Nokogiri document validation issue.
Merge remote-tracking branch 'origin/master' into develop
Version 1.1.3.2.
Finish 1.1.3.2.
RSpec 3.0, fuller definition of PTR and RDFA vocabularies.