* [AP_VOID_FETCH,CKAN_AP,NEW] AP-stage for fetching VoID-described datasets.
* [ARCHIVE_EXT,NEW] Added predicated for only tarring.
* [RDF_PACKAGE,EXT] Option for choosing between TAR and TAR+BZIP2.
* [RDF_SERIAL,SC] Simplified rdf_directory_files/2.
* [RDF_SERIAL,EXT] Saving to N-Triples now uses the new Semweb predicate.