fix memory leak
fix memory leak

LanaCoin/lanacoin,IOCoin/iocoin,Whitecoin-org/Whitecoin,AquariusNetwork/ARCO,jyap808/jumbucks,CoinBlack/bitcoin,IOCoin/DIONS,valorbit/valorbit,IOCoin/iocoin,AquariusNetwork/ARCOv2,okcashpro/okcash,ALEXIUMCOIN/alexium,AquariusNetwork/ARCOv2,iadix/iadixcoin,CoinBlack/blackcoin,MOIN/moin,GeopaymeEE/e-goldcoin,landcoin-ldc/landcoin,TheoremCrypto/TheoremCoin,GeopaymeEE/e-goldcoin,ALEXIUMCOIN/alexium,shadowproject/shadow,som4paul/BolieC,MOIN/moin,prodigal-son/blackcoin,jyap808/jumbucks,VsyncCrypto/Vsync,blackcoinhelp/blackcoin,jyap808/jumbucks,IOCoin/iocoin,valorbit/valorbit-oss,landcoin-ldc/landcoin,elambert2014/cbx2,som4paul/BolieC,elambert2014/cbx2,ALEXIUMCOIN/alexium,CoinBlack/bitcoin,TheoremCrypto/TheoremCoin,LanaCoin/lanacoin,IOCoin/DIONS,shadowproject/shadow,landcoin-ldc/landcoin,greencoin-dev/GreenCoinV2,jyap808/jumbucks,ALEXIUMCOIN/alexium,greencoin-dev/GreenCoinV2,xranby/blackcoin,MOIN/moin,valorbit/valorbit,CoinBlack/bitcoin,lateminer/DopeCoinGold,IOCoin/DIONS,blackcoinhelp/blackcoin,iadix/iadixcoin,LanaCoin/lanacoin,Whitecoin-org/Whitecoin,okcashpro/okcash,GeopaymeEE/e-goldcoin,lateminer/DopeCoinGold,xranby/blackcoin,rat4/blackcoin,MOIN/moin,iadix/iadixcoin,iadix/iadixcoin,blackcoinhelp/blackcoin,prodigal-son/blackcoin,iadix/iadixcoin,xranby/blackcoin,VsyncCrypto/Vsync,lateminer/DopeCoinGold,MOIN/moin,landcoin-ldc/landcoin,prodigal-son/blackcoin,AquariusNetwork/ARCOv2,valorbit/valorbit-oss,valorbit/valorbit,AquariusNetwork/ARCO,CoinBlack/bitcoin,shadowproject/shadow,CoinBlack/blackcoin,IOCoin/DIONS,shadowproject/shadow,som4paul/BolieC,rat4/blackcoin,ALEXIUMCOIN/alexium,CoinBlack/bitcoin,shadowproject/shadow,iadix/iadixcoin,IOCoin/DIONS,blackcoinhelp/blackcoin,okcashpro/okcash,AquariusNetwork/ARCOv2,iadix/iadixcoin,LanaCoin/lanacoin,greencoin-dev/GreenCoinV2,pinkmagicdev/SwagBucks,IOCoin/iocoin,elambert2014/cbx2,dopecoin-dev/DopeCoinGold,CoinBlack/blackcoin,IOCoin/DIONS,CoinBlack/blackcoin,CoinBlack/blackcoin,VsyncCrypto/Vsync,TheoremCrypto/TheoremCoin,GeopaymeEE/e-goldcoin,Whitecoin-org/Whitecoin,IOCoin/iocoin,landcoin-ldc/landcoin,vectorcoindev/Vector,dopecoin-dev/DopeCoinGold,iadix/iadixcoin,AquariusNetwork/ARCO,GeopaymeEE/e-goldcoin,pinkmagicdev/SwagBucks,blackcoinhelp/blackcoin,CoinBlack/bitcoin,vectorcoindev/Vector,Whitecoin-org/Whitecoin,valorbit/valorbit-oss,xranby/blackcoin,prodigal-son/blackcoin,okcashpro/okcash,valorbit/valorbit,som4paul/BolieC,VsyncCrypto/Vsync,AquariusNetwork/ARCOv2,rat4/blackcoin,TheoremCrypto/TheoremCoin,vectorcoindev/Vector,dopecoin-dev/DopeCoinGold,prodigal-son/blackcoin,TheoremCrypto/TheoremCoin,okcashpro/okcash,okcashpro/okcash,iadix/iadixcoin,shadowproject/shadow,iadix/iadixcoin,vectorcoindev/Vector,rat4/blackcoin,pinkmagicdev/SwagBucks,valorbit/valorbit,elambert2014/cbx2,lateminer/DopeCoinGold,valorbit/valorbit-oss,iadix/iadixcoin,IOCoin/DIONS,greencoin-dev/GreenCoinV2,greencoin-dev/GreenCoinV2,AquariusNetwork/ARCO,vectorcoindev/Vector,AquariusNetwork/ARCO,som4paul/BolieC,jyap808/jumbucks,dopecoin-dev/DopeCoinGold,rat4/blackcoin,MOIN/moin,valorbit/valorbit-oss,IOCoin/DIONS,pinkmagicdev/SwagBucks,lateminer/DopeCoinGold,dopecoin-dev/DopeCoinGold,elambert2014/cbx2,LanaCoin/lanacoin,VsyncCrypto/Vsync,pinkmagicdev/SwagBucks,Whitecoin-org/Whitecoin