multi: update btcsuite API's to latest upstream changes

This commit makes a large number of minor changes concerning API usage
within the deamon to match the latest version on the upstream btcsuite
libraries.

The major changes are the switch from wire.ShaHash to chainhash.Hash,
and that wire.NewMsgTx() now takes a paramter indicating the version of
the transaction to be created.

chainntnfs/interface.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"sync"
 
+	"github.com/roasbeef/btcd/chaincfg/chainhash"
 	"github.com/roasbeef/btcd/wire"
 )
 
@@ -26,7 +27,7 @@ type ChainNotifier interface {
 	//
 	// NOTE: Dispatching notifications to multiple clients subscribed to
 	// the same (txid, numConfs) tuple MUST be supported.
-	RegisterConfirmationsNtfn(txid *wire.ShaHash, numConfs uint32) (*ConfirmationEvent, error)
+	RegisterConfirmationsNtfn(txid *chainhash.Hash, numConfs uint32) (*ConfirmationEvent, error)
 
 	// RegisterSpendNtfn registers an intent to be notified once the target
 	// outpoint is succesfully spent within a confirmed transaction. The
@@ -62,7 +63,7 @@ type ChainNotifier interface {
 type TxConfirmation struct {
 	// BlockHash is the hash of the block that confirmed the original
 	// transition.
-	BlockHash *wire.ShaHash
+	BlockHash *chainhash.Hash
 
 	// BlockHeight is the height of the block in which the transaction was
 	// confirmed within.
@@ -105,7 +106,7 @@ type ConfirmationEvent struct {
 // target output.
 type SpendDetail struct {
 	SpentOutPoint     *wire.OutPoint
-	SpenderTxHash     *wire.ShaHash
+	SpenderTxHash     *chainhash.Hash
 	SpendingTx        *wire.MsgTx
 	SpenderInputIndex uint32
 	SpendingHeight    int32
@@ -122,7 +123,7 @@ type SpendEvent struct {
 // main chain.
 type BlockEpoch struct {
 	Height int32
-	Hash   *wire.ShaHash
+	Hash   *chainhash.Hash
 }
 
 // BlockEpochEvent encapsulates an on-going stream of block epoch