balance_api: decrease max weigth for map-rating to 0.25
balance_api: decrease max weigth for map-rating to 0.25

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