fixed echo test.
fixed echo test.

swansontec/libbitcoin,Airbitz/libbitcoin,BWallet/libbitcoin,BWallet/libbitcoin,libmetrocoin/libmetrocoin-consensus,kaostao/libbitcoin,libtetcoin/libtetcoin-consensus,kaostao/libbitcoin,BWallet/libbitcoin,libmetrocoin/libmetrocoin-consensus,GroestlCoin/libgroestlcoin,swansontec/libbitcoin,Airbitz/libbitcoin,GroestlCoin/libgroestlcoin,libtetcoin/libtetcoin-consensus,Airbitz/libbitcoin,Airbitz/libbitcoin,libtetcoin/libtetcoin-consensus,kaostao/libbitcoin,kaostao/libbitcoin,libmetrocoin/libmetrocoin-consensus,GroestlCoin/libgroestlcoin,swansontec/libbitcoin,libmetrocoin/libmetrocoin-consensus,GroestlCoin/libgroestlcoin,libtetcoin/libtetcoin-consensus,swansontec/libbitcoin,BWallet/libbitcoin,libtetcoin/libtetcoin-consensus,libmetrocoin/libmetrocoin-consensus