Update for recent notifyspent changes.
Update for recent notifyspent changes.

Closes #2.

tb00/btcd,davecgh/btcd,jrick/dcrd,davecgh/btcd,aakselrod/btcd,aakselrod/btcrpcclient,jrick/btcrpcclient,aakselrod/btcrpcclient,jrick/btcrpcclient,ltcsuite/ltcd,wallclockbuilder/btcrpcclient,btcsuite/btcrpcclient,runeaune/btcrpcclient,jrick/btcd,aakselrod/btcd,decred/dcrd,jrick/btcd,ppcsuite/btcrpcclient,FactomProject/btcrpcclient,decred/dcrd,btcsuite/btcrpcclient,dajohi/btcd,btcsuite/btcd,tb00/btcd,runeaune/btcrpcclient,wallclockbuilder/btcd,Roasbeef/btcd,dajohi/btcd,Roasbeef/btcd,wallclockbuilder/btcrpcclient,ppcsuite/ppcd,wallclockbuilder/btcd,ppcsuite/btcrpcclient,dajohi/btcd,ppcsuite/ppcd,Stash-Crypto/btcd,jrick/btcd,Stash-Crypto/btcd,jrick/dcrd,ltcsuite/ltcd,FactomProject/btcrpcclient,btcsuite/btcd,davecgh/btcrpcclient