various small changes to bitcore

Block.js

@@ -64,7 +64,7 @@ function spec(b) {
 
     var txCount = parser.varInt();
 
-    for (i = 0; i < txCount; i++) {
+    for (var i = 0; i < txCount; i++) {
       var tx = new Transaction();
       tx.parse(parser);
       this.txs.push(tx);

Connection.js

@@ -476,7 +476,7 @@ function spec(b) {
         lock_time: tx.lock_time,
         ins: tx.ins,
         outs: tx.outs,
-	tx: tx,
+	      tx: tx,
       };
 
     case 'getblocks':

Transaction.js

@@ -553,7 +553,7 @@ function spec(b) {
     var ins = this.ins.map(function (txin) {
       var txinObj = {
         prev_out: {
-          hash: new Buffer(txin.getOutpointHash()).reverse().toString(hex),
+          hash: new Buffer(txin.getOutpointHash()).reverse().toString('hex'),
           n: txin.getOutpointIndex()
         }
       };

const.js

@@ -1,7 +1,18 @@
 
-exports.MSG = {
+MSG = {
 	TX:		1,
 	BLOCK:		2,
 	FILTERED_BLOCK:	3,
 };
 
+MSG.to_str = function(t) {
+  switch(t) {
+    case MSG.TX: return 'transaction';
+    case MSG.BLOCK: return 'block';
+    case MSG.FILTERED_BLOCK: return 'filtered block';
+    default: return 'unknown';
+  }
+}
+
+exports.MSG = MSG;
+