Bitcoin-Qt: allow to differentiate Qt log entries from core
Bitcoin-Qt: allow to differentiate Qt log entries from core

- prepend "Bitcoin-Qt" in front of debug.log entries, which come from Qt
- move DebugMessageHandler installation upwards to the event handler
  installation, which fits much better

Conflicts:
	src/qt/bitcoin.cpp

pinkmagicdev/SwagBucks,pinkmagicdev/SwagBucks,valorbit/valorbit-oss,lateminer/DopeCoinGold,xranby/blackcoin,elambert2014/cbx2,greencoin-dev/GreenCoinV2,CoinBlack/blackcoin,prodigal-son/blackcoin,rat4/blackcoin,iadix/iadixcoin,valorbit/valorbit-oss,CoinBlack/bitcoin,AquariusNetwork/ARCO,blackcoinhelp/blackcoin,CoinBlack/bitcoin,iadix/iadixcoin,valorbit/valorbit,iadix/iadixcoin,valorbit/valorbit-oss,greencoin-dev/GreenCoinV2,prodigal-son/blackcoin,blackcoinhelp/blackcoin,lateminer/DopeCoinGold,iadix/iadixcoin,prodigal-son/blackcoin,elambert2014/cbx2,VsyncCrypto/Vsync,AquariusNetwork/ARCO,CoinBlack/bitcoin,landcoin-ldc/landcoin,CoinBlack/bitcoin,VsyncCrypto/Vsync,ALEXIUMCOIN/alexium,lateminer/DopeCoinGold,CoinBlack/blackcoin,iadix/iadixcoin,vectorcoindev/Vector,dopecoin-dev/DopeCoinGold,greencoin-dev/GreenCoinV2,valorbit/valorbit,blackcoinhelp/blackcoin,AquariusNetwork/ARCOv2,Whitecoin-org/Whitecoin,som4paul/BolieC,vectorcoindev/Vector,Whitecoin-org/Whitecoin,rat4/blackcoin,blackcoinhelp/blackcoin,prodigal-son/blackcoin,AquariusNetwork/ARCO,Whitecoin-org/Whitecoin,valorbit/valorbit-oss,rat4/blackcoin,xranby/blackcoin,dopecoin-dev/DopeCoinGold,landcoin-ldc/landcoin,prodigal-son/blackcoin,blackcoinhelp/blackcoin,iadix/iadixcoin,greencoin-dev/GreenCoinV2,VsyncCrypto/Vsync,vectorcoindev/Vector,CoinBlack/bitcoin,iadix/iadixcoin,som4paul/BolieC,CoinBlack/bitcoin,CoinBlack/blackcoin,iadix/iadixcoin,rat4/blackcoin,vectorcoindev/Vector,valorbit/valorbit-oss,som4paul/BolieC,pinkmagicdev/SwagBucks,CoinBlack/blackcoin,TheoremCrypto/TheoremCoin,som4paul/BolieC,Whitecoin-org/Whitecoin,lateminer/DopeCoinGold,ALEXIUMCOIN/alexium,TheoremCrypto/TheoremCoin,LanaCoin/lanacoin,dopecoin-dev/DopeCoinGold,ALEXIUMCOIN/alexium,iadix/iadixcoin,AquariusNetwork/ARCOv2,vectorcoindev/Vector,elambert2014/cbx2,landcoin-ldc/landcoin,dopecoin-dev/DopeCoinGold,landcoin-ldc/landcoin,AquariusNetwork/ARCOv2,dopecoin-dev/DopeCoinGold,iadix/iadixcoin,LanaCoin/lanacoin,AquariusNetwork/ARCOv2,iadix/iadixcoin,elambert2014/cbx2,valorbit/valorbit,Whitecoin-org/Whitecoin,greencoin-dev/GreenCoinV2,landcoin-ldc/landcoin,TheoremCrypto/TheoremCoin,som4paul/BolieC,xranby/blackcoin,LanaCoin/lanacoin,LanaCoin/lanacoin,rat4/blackcoin,valorbit/valorbit,xranby/blackcoin,LanaCoin/lanacoin,AquariusNetwork/ARCO,AquariusNetwork/ARCOv2,VsyncCrypto/Vsync,pinkmagicdev/SwagBucks,valorbit/valorbit,lateminer/DopeCoinGold,ALEXIUMCOIN/alexium,TheoremCrypto/TheoremCoin,ALEXIUMCOIN/alexium,AquariusNetwork/ARCO,elambert2014/cbx2,VsyncCrypto/Vsync,CoinBlack/blackcoin,TheoremCrypto/TheoremCoin,pinkmagicdev/SwagBucks