george/prediction_tracker: Manage and score predictions on arbitrary topics. @ bc99d85e703c65e4e202522694fcae7566b262bc

George C. Privon bc99d85e70 write -> display. remove as many hand-coded newline charcters as is easy		%!s(int64=6) %!d(string=hai) anos
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create_database.rkt	976166a797 improve require formatting	%!s(int64=6) %!d(string=hai) anos
scoring_rules.rkt	7d3b4d3c4a type annotations, more appropriate computation of log score	%!s(int64=6) %!d(string=hai) anos
update_predictions.rkt	bc99d85e70 write -> display. remove as many hand-coded newline charcters as is easy	%!s(int64=6) %!d(string=hai) anos