Renamed method SignStream::hash into SigntStream::sign
Renamed method SignStream::hash into SigntStream::sign

alekseysidorov/exonum,exonum/exonum,exonum/exonum,exonum/exonum,exonum/exonum,alekseysidorov/exonum,alekseysidorov/exonum,alekseysidorov/exonum