InfGames: Replaced expert avatar with new art. Replaced player avatar with proxy art.
Avatars now have 'emotions', based on whether they hit or missed their guess.
Merge branch 'seg-srri-umass-tp-data-games/master'
Inference Games: update DG when results of round are displayed, not after.
Splits endOldRound() into closeRoundData() and resetPlayers() since sometimes we don't want to do both.