Finish 1.1.3.1. Implement callback mode of Reader#each_triple.
Dup context when parsing to prevent modifying the original.
Make Resource Enumerable to allow easy RDF serialization.
Change .gemspec to json-ld.gemspec for Windows compatibility
Version 1.1.4
Finish 1.1.4
Windows compatibility.
Fixed bug in context parsing which removed elements.
Made Resource an RDF::Enumerable.