* [CODES_EXT,NEW] Since we do not know which version is faster, we have added two versions of codes_replace/4.
* [DIR_EXT,FIX] Wrong directory using (home i.o. personal).
* [FILE_EXT,FIX] Rewrote safe_copy_file/2; should not require write access on from file.
* [FILE_EXT,EXT] safe_delete_file/1 now succeeds if there is no such file.
* [OS_EXT,FIX] Added module preservation for os_dependent_call/1.
* [RDF_SERIAL,FIX] file_or_rdf_graph/2 would not work for graphs.
* [SCRIPT_STAGE,EXT] Added the cow. Yay!
* [XML_SCHEMA_DATATYPES,FIX] Timestamps are now supported for the xsd:date and xsd:dateTime format (these are compound terms in Prolog).