change data version for v0.4.2
change data version for v0.4.2

ManfredKarrer/exchange,bisq-network/exchange,metabit/bitsquare,bisq-network/exchange,sakazz/exchange,ManfredKarrer/exchange,haiqu/bitsquare,metabit/bitsquare,sakazz/exchange,bitsquare/bitsquare,bitsquare/bitsquare,haiqu/bitsquare