Fix problem with TxOut.bitcoin_address.
Fix problem with TxOut.bitcoin_address.

Tetchain/pycoin,lekanovic/pycoin,Magicking/pycoin,antiface/pycoin,shivaenigma/pycoin,Treefunder/pycoin,Kefkius/pycoin,shayanb/pycoin,Treefunder/pycoin,Pan0ram1x/pycoin,XertroV/pycoin,shayanb/pycoin,devrandom/pycoin,lekanovic/pycoin,gitonio/pycoin,Bluejudy/pycoin,mperklin/pycoin,Kefkius/pycoin,XertroV/pycoin,pycoin/pycoin,zsulocal/pycoin,Pan0ram1x/pycoin,Tetchain/pycoin,thirdkey-solutions/pycoin,zsulocal/pycoin,thirdkey-solutions/pycoin,richardkiss/pycoin,shivaenigma/pycoin,richardkiss/pycoin,Bluejudy/pycoin,mperklin/pycoin,ptcrypto/pycoin,tomholub/pycoin,Magicking/pycoin,moocowmoo/pycoin,pycoin/pycoin,devrandom/pycoin,gitonio/pycoin,antiface/pycoin,ptcrypto/pycoin,moocowmoo/pycoin,tomholub/pycoin