* [DIR_INFRA,SC] Renamed create_ouput_directory/1 to output_directory/1.
* [DIR_INFRA,NEW] Added set_data_directory/0 wrapper.
* [PL_CLAS,FIX] Loading projects based on command line arguments did not work in rewrite.
* [RDF_SERIAL,SC] Split off parts of this big module into novel modules RDF_CONVERT, RDF_FILE, RDF_SERIAL_EXT.