Update debian package changelog for 0.12.0 Final Release
Update debian package changelog for 0.12.0 Final Release

adpg211/bitcoin-master,adpg211/bitcoin-master,deadalnix/bitcoin,deadalnix/bitcoin,adpg211/bitcoin-master,deadalnix/bitcoin,zander/bitcoinclassic,adpg211/bitcoin-master,zander/bitcoinclassic,bitcoinclassic/bitcoinclassic,deadalnix/bitcoin,bitcoinclassic/bitcoinclassic,zander/bitcoinclassic,bitcoinclassic/bitcoinclassic,bitcoinclassic/bitcoinclassic,deadalnix/bitcoin,bitcoinclassic/bitcoinclassic,adpg211/bitcoin-master,zander/bitcoinclassic,zander/bitcoinclassic,bitcoinclassic/bitcoinclassic,deadalnix/bitcoin,adpg211/bitcoin-master,zander/bitcoinclassic