Made dictionary->chunk routine that uses ports and ends up taking about
9 seconds per dictionary on a weak computer instead of the 30 minutes or
so that's spent because of huge buffer handling.
Renamed func that extracts a pattern to extract-pattern/port because
it's more descriptive and accurate.
Removed require of define-test.rkt as it became superfluous.
Added *#* to ignore and removed define-test.rkt
Added extract-xml.rkt that converts from xml-files to xexpr files, basically.