Avoid CWalletTx copies in GetAddressBalances and GetAddressGroupings
Avoid CWalletTx copies in GetAddressBalances and GetAddressGroupings

Conflicts:
	src/wallet/wallet.cpp

chaincoin/chaincoin,chaincoin/chaincoin,chaincoin/chaincoin,chaincoin/chaincoin,chaincoin/chaincoin,chaincoin/chaincoin