Convert MsgGetBlocks errors to MessageError type.
Convert MsgGetBlocks errors to MessageError type.

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