* [AP_DOWNLOAD,FIX] Nonvar check for URI scheme is necessary.
* [CODES_EXT,FIX] Determinism of atomic_codes_nondet/3.
* [IANA_TO_RDF,URI_SCHEME,EXT] Integrating various IANA-related modules, vastly simplifying codebase.
* [ROW_EXT,SC] Replaced rows_to_lists/2 to row_to_list/2.
* [ROW_EXT,SC] Relocated SPARQL-specific rows_to_propositions/3 and rows_to_resources/2 to SPARQL module.
* [URI_QUERY,NEW] request_query_read/3 now reads atoms that are not converted to Prolog terms. Added request_query_read_pl_term/3 with the old behavior.