* [CKAN_LOD,EXT] Logging messages now applies to all messages and exceptions during (1) download, (2) archive extraction, (3) RDF loading, (4) canonical RDF writing.
* [CKAN_LOD,SC] Made the code more modular.
* [CKAN_LOD,SC] Removed the asserion of the URL in file basename. This is now part of the metadata file.