Prop 219: Auction Module MinBidFee Update

During the Apollo upgrade, the Auction Module's MinBidFee Param was mistakenly set to 3110 ugraviton, when it was supposed to be set to 3110 GRAV. Because GRAV has 6 decimals of precision, the new value should be 3110000000 to represent the correct amount. For more information, see Proposal #203 here: https://commonwealth.im/gravity-bridge/proposal/203-set-minimum-bid-fee-parameter-to-3110-grav