fix a broken restriction and loosen a stupidly strict one so that we can inherit sensibly
rename fmpos to gpos to be easily compatible with TieBreaker (no need to make a new name for it now when gpos makes sense)
upgrade to tournament 0.20.2 and use the built in matchTieCompute helper instead
if subclasses dont allow multiple final round matches and remove the gpos attribute - still allow tiebreaking
cleanups and history for 0.5.0
0.5.0