Increase default mined block max size
Increase default mined block max size

spreadcoin/spreadcoin,spreadcoin-project/spreadcoin,spreadcoin/mrspread,spreadcoin/mrspread,spreadcoin/spreadcoin,spreadcoin/mrspread,spreadcoin/spreadcoin,spreadcoin-project/spreadcoin,spreadcoin/mrspread,spreadcoin-project/spreadcoin,spreadcoin-project/spreadcoin,spreadcoin/spreadcoin,spreadcoin/spreadcoin,spreadcoin/mrspread