Updates for btcscript api changes.
Updates for btcscript api changes.

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