conf: added USE_AVG_PERF and rewrote MIN_PLAYER_COUNT_TO_RATE
conf: added USE_AVG_PERF and rewrote MIN_PLAYER_COUNT_TO_RATE

em92/pickup-rating,em92/pickup-rating,em92/quakelive-local-ratings,em92/quakelive-local-ratings,em92/quakelive-local-ratings,em92/quakelive-local-ratings,em92/quakelive-local-ratings,em92/pickup-rating