Add decodescript support to btcctl.
Add decodescript support to btcctl.

runeaune/btcd,sysbot/btcd,btcsuitereleases/btcd,dan-da/btcd,cqswxj2013/btcd,jrick/btcd,stevenroose/btcd,cqswxj2013/btcd,1d4Nf6/btcd,Dirbaio/btcd,btcsuite/btcd,ppcsuite/ppcd-old,dajohi/btcd,cjepson/btcd,jimmysong/btcd,Dirbaio/btcd,ltcsuite/ltcd,jcmincke/dcrd,FactomProject/btcd,toddfries/btcd,danoctavian/btcd,BitGo/prova,FactomProject/btcd,btcsuite/btcd,decred/dcrd,aakselrod/btcd,jongillham/btcd,DanielKrawisz/btcd,Cleawing/btcd,adiabat/btcd,jongillham/btcd,jimmysong/btcd,Cleawing/btcd,Evil-Coin/Evil,pkothbauer/btcd,jcmincke/dcrd,decred/dcrd,stevenroose/btcd,toddfries/btcd,ppcsuite/ppcd,hectorj/btcd,glv2/ppcd,qchain/btcd,soapboxsys/ombfullnode,mathiasrw/btcd,wallclockbuilder/btcd,danoctavian/btcd,glv2/ppcd,aakselrod/btcd,runeaune/btcd,DanielKrawisz/btcd,CryptocurrencyCabal/htcd,ppcsuite/ppcd,soapboxsys/ombfullnode,jrick/btcd,hectorj/btcd,btcsuitereleases/btcd,ltcsuite/ltcd,dan-da/btcd,Roasbeef/btcd,1d4Nf6/btcd,mathiasrw/btcd,jcmincke/dcrd,Dirbaio/btcd,adiabat/btcd,jrick/dcrd,Stash-Crypto/btcd,cjepson/btcd,dajohi/btcd,CryptocurrencyCabal/htcd,pkothbauer/btcd,tb00/btcd,BitGo/prova,sysbot/btcd,wallclockbuilder/btcd,davecgh/btcd,ppcsuite/ppcd-old,qchain/btcd,tb00/btcd,dajohi/btcd,jrick/btcd,Evil-Coin/Evil,jrick/dcrd,Roasbeef/btcd,davecgh/btcd,Stash-Crypto/btcd