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.

lnwallet/interface.go

@@ -6,6 +6,7 @@ import (
 	"sync"
 
 	"github.com/roasbeef/btcd/btcec"
+	"github.com/roasbeef/btcd/chaincfg/chainhash"
 	"github.com/roasbeef/btcd/txscript"
 	"github.com/roasbeef/btcd/wire"
 	"github.com/roasbeef/btcutil"
@@ -42,7 +43,7 @@ type Utxo struct {
 // the wallet, or has outputs that pay to the wallet.
 type TransactionDetail struct {
 	// Hash is the transaction hash of the transaction.
-	Hash wire.ShaHash
+	Hash chainhash.Hash
 
 	// Value is the net value of this transaction (in satoshis) from the
 	// PoV of the wallet. If this transaction purely spends from the
@@ -58,7 +59,7 @@ type TransactionDetail struct {
 	// BlockHeight is the hash of the block which includes this
 	// transaction. Unconfirmed transactions will have a nil value for this
 	// field.
-	BlockHash *wire.ShaHash
+	BlockHash *chainhash.Hash
 
 	// BlockHeight is the height of the block including this transaction.
 	// Unconfirmed transaction will show a height of zero.
@@ -142,7 +143,7 @@ type WalletController interface {
 	// paying out to the specified outputs. In the case the wallet has
 	// insufficient funds, or the outputs are non-standard, an error
 	// should be returned.
-	SendOutputs(outputs []*wire.TxOut) (*wire.ShaHash, error)
+	SendOutputs(outputs []*wire.TxOut) (*chainhash.Hash, error)
 
 	// ListUnspentWitness returns all unspent outputs which are version 0
 	// witness programs. The 'confirms' parameter indicates the minimum
@@ -203,23 +204,23 @@ type WalletController interface {
 type BlockChainIO interface {
 	// GetBestBlock returns the current height and block hash of the valid
 	// most-work chain the implementation is aware of.
-	GetBestBlock() (*wire.ShaHash, int32, error)
+	GetBestBlock() (*chainhash.Hash, int32, error)
 
 	// GetTxOut returns the original output referenced by the passed
 	// outpoint.
-	GetUtxo(txid *wire.ShaHash, index uint32) (*wire.TxOut, error)
+	GetUtxo(txid *chainhash.Hash, index uint32) (*wire.TxOut, error)
 
 	// GetTransaction returns the full transaction identified by the passed
 	// transaction ID.
-	GetTransaction(txid *wire.ShaHash) (*wire.MsgTx, error)
+	GetTransaction(txid *chainhash.Hash) (*wire.MsgTx, error)
 
 	// GetBlockHash returns the hash of the block in the best block chain
 	// at the given height.
-	GetBlockHash(blockHeight int64) (*wire.ShaHash, error)
+	GetBlockHash(blockHeight int64) (*chainhash.Hash, error)
 
 	// GetBlock returns the block in the main chain identified by the given
 	// hash.
-	GetBlock(blockHash *wire.ShaHash) (*wire.MsgBlock, error)
+	GetBlock(blockHash *chainhash.Hash) (*wire.MsgBlock, error)
 }
 
 // SignDescriptor houses the necessary information required to successfully sign