1. Scripting stages.
2. VoID loading.

* [ATOM_EXT,FIX] Progress bar division by zero.
* [FILE_EXT,EXT] Added script stages to merge_into_one_file/[2,3]. TODO!
* [LIST_EXT,FIX] List replace determinism.
* [SCRIPT_EXT,NEW] Another rewrite: a single predicate call for a complete script (i.e. script/3) with a parameter that takes stage descriptions.
** This allows automatic numbering of stages.
** This allows settings on the script and of the stage level.
** Added support for skipping the entire script (if the results are in `Output`).
** Automatically remove the last, empty stage directory.
* [VOID_FILE,EXT] Datadumpt are now loaded relative to the directory of the VoID file describing them.
* [XML_TO_RDF,FIX] Another attempt at excluding spaces from created IRIs.
* [XSD,FIX] dateTime was not recognized by xsd_datatype/2.
* [META_EXT,FIX] Relocated meta-predicate declaration.