conditional debugging

UdpSocket.ios.js

@@ -47,10 +47,12 @@ inherits(UdpSocket, EventEmitter)
 
 UdpSocket.prototype._debug = function() {
   // for now
+  if (typeof DEBUG !== 'undefined' && DEBUG) {
     var args = [].slice.call(arguments)
     args.unshift('socket-' + this._id)
     console.log.apply(console, args)
   }
+}
 
 UdpSocket.prototype.bind = function(port, address, callback) {
   var self = this