* [SC] Replaced references to 'prasem' file search path with 'project'. A project that uses the PGC should define a file search path link to its project directory.
* [XML,SC] Added HTTP locations and file search paths used to detect DTD and CSS files.
* [XML,SC] Added stream_to_xml/2 to the public predicates.
* [RDF_SERIAL,DOC] Updated documentation.
* [GRAPH_EXPORT,FIX] Added missing import.
* [RDF_SERIAL,FIX] Fixed wrong predicate arity in public predicates list.
* [RDF_SERIAL,NEW] Added rdf_save2/2 wrapper of rdf_save2/3.
* [XML,SC] Use setup_call_cleanup/3 for file_to_xml/2.
* [XML,EXT] Close the stream after reading from it in file_to_xml/3.
* [XML,FIX] Added missing import.
* [GRAPH_GENRIC,FIX] Added missing import.
Singleton variables.
merge
Merge branch 'master' of https://github.com/wouterbeek/PrologGenerics
* [STCN,NEW] ClioPatria menu item for loading VoID datasets.