Update for recent btcjson changes.
Update for recent btcjson changes.

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