* [AP,EXT] Statistics updating now works.
* [AP,NEW] Added option `stat_lag` to ap_stage, used to set the lag in between print actions for statistics information.
* [AP_ACT,FIX] directory_file_path/3 and friends return the parent directory when a directory is given as file.
* [DIR_EXT,FILE_EXT,SC] Removed all experiment-related predicates. The idea is that automated processes (AP) are used for this instead.
* [OAEI,FIX] rdf_datatype/5 expects a datatype IRI (not a name).
* [RDFS_VOC,EXT] Allow the RDFS vocabulary to be loaded into arbitrary RDF graphs.