fix test after rebase 2

test/test.blockchain.Insight.js

@@ -9,6 +9,7 @@ try {
 } catch (e) {
   var copay = require('../copay'); //node
 }
+var Buffer = bitcore.Buffer;
 var Insight = copay.Insight || require('../js/models/blockchain/Insight');
 
 var ID = '933bf321393459b7';

test/test.network.Async.js

@@ -17,6 +17,7 @@ describe('Network / Async', function() {
     var fakeSocket = {};
     fakeSocket.emit = function() {};
     fakeSocket.on = function() {};
+    fakeSocket.disconnect = function() {};
     n.createSocket = function() {
       return fakeSocket;
     };