Additional changes to work with RelEx2Logic

can you rename this to "parse-get-words-in-order", and restore the original (arbitrary-order) "parse-get-words" ?

The arbitrary-order version is much faster, and is sufficient for most uses. I think it will be quite rare that anyone actually needs the actual sequence. The big exception to this is anaphora resolution, and there the sequencing will be done by the pattern matcher.