Update N-Triples/N-Quads to support end-of-line comment.
Add some NQuads test cases.
Fis Solutions#limit for JRuby.
Fix frozen string issues with encode!
This resolves issue #138
Fix RDF::Statement to either return <(http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement> if no arguments are given, or an insteance of RDF::Statement.
Merged 'develop'.
Finish NTriples