Added localAddress to connect options

Author: luop90

lib/client.js

@@ -28,6 +28,7 @@ var Client = function(config) {
   this.host = this.connectionParameters.host;
   this.password = this.connectionParameters.password;
   this.replication = this.connectionParameters.replication;
+  this.localAddress = this.connectionParameters.localAddress;
 
   var c = config || {};
 
@@ -60,7 +61,7 @@ Client.prototype.connect = function(callback) {
   if(this.host && this.host.indexOf('/') === 0) {
     con.connect(this.host + '/.s.PGSQL.' + this.port);
   } else {
-    con.connect(this.port, this.host);
+    con.connect(this.port, this.host, this.localAddress);
   }