refine shuffle fn to remove first
fixed region diff, also comma spacing
fixed det_score() to take into account arraylengths
removed the 70s and sort_decade()
remove 70s, update 2pac in json
delete sort_decade() from src/matches.js
clean up det_score() in matches.js, removed inner constants
clean parse.js, add parse_tester.js as sep
further cleaning
manhattan clarification