Update for btcjson.ListUnspentResult fixes.
Update for btcjson.ListUnspentResult fixes.

Roasbeef/btcwallet,decred/dcrwallet,decred/dcrwallet,jrick/dcrwallet,Stash-Crypto/btcwallet,btcsuite/btcwallet,Roasbeef/btcwallet,synrg-labs/btcwallet,synrg-labs/btcwallet,jrick/btcwallet,Stash-Crypto/btcwallet,jrick/dcrwallet,btcsuite/btcwallet,jrick/btcwallet