* [ARCHIVE_EXT,NEW] Added create_archive/2.
* [FILE_EXT,SC] Make http_path_correction/2 public. Used in RDF_SERIAL.
* [RDF_DATASET,FIX] Fixed assertion predicate.
* [RDF_PACKAGE,NEW] Added predicates for packaging VoID graphs and RDF datasets.
* [RDF_SERIAL,SC] Removed rdf_graph_source_file/2, simplified codebase.
* [RDF_SERIAL,FIX] Unchanged graph would be RDF-saved anyway.
* [VOID_TEST,NEW] New script for testing the new VoID implementation.