Relace RDF and other gem dependencies to prepare for 0.4.x.
Compat with RDF.rb version 0.3.4.
Add requires for json/ld, rdf/turtle and rdf/microdata
Documentation update.
Soft include SPARQL gem, instead of SPARQL::Client
Add back soft-dependency on sparql-client, in addition to sparql.
Update gem dependencies.
Keep TriX at 0.3.0
Version 0.3.4.2
Update dependencies for RDF.rb 0.3.5
Rake build command.
Update github links for ruby-rdf.
Update homepage and authors.
Update RDF.rb link to GH Page.
Update locations for gem READMEs and documentation.
Update gem links to GHPages.
Release 1.0.0.
Release 1.0.0.