* [HTML_PL_TERM,NEW] Added support for `how` terms and `how_class` terms.
* [HTML_PL_TERM,NEW] Added `LocationId` arguments; as in HTML_RDF_TERM.
* [HTML_PL_TERM,EXT] Added module query term in operator and predicate link.
* [HTML_PL_TERM,SC] Updated all uses of html_pl_term//2.