[minor doc] Update demo and small fix to node-http-proxy

demo.js

@@ -60,8 +60,9 @@ util.puts('http proxy server '.blue + 'started '.green.bold + 'on port '.blue +
 // Http Proxy Server with Latency
 //
 httpProxy.createServer(function (req, res, proxy) {
+  var paused = proxy.pause(req);
   setTimeout(function() {
-    proxy.proxyRequest(9000, 'localhost');
+    proxy.proxyRequest(req, res, 9000, 'localhost', paused);
   }, 200)
 }).listen(8002);
 util.puts('http proxy server '.blue + 'started '.green.bold + 'on port '.blue + '8002 '.yellow + 'with latency'.magenta.underline);
@@ -80,11 +81,11 @@ util.puts('http proxy server '.blue + 'started '.green.bold + 'on port '.blue +
 //
 // Http Server with proxyRequest Handler and Latency
 //
+var standAloneProxy = new httpProxy.HttpProxy();
 http.createServer(function (req, res) {
-  var proxy = new httpProxy.HttpProxy(req, res);
-
+  var paused = standAloneProxy.pause(req);
   setTimeout(function() {
-    proxy.proxyRequest(9000, 'localhost');
+    proxy.proxyRequest(req, res, 9000, 'localhost', paused);
   }, 200);
 }).listen(8004);
 util.puts('http server '.blue + 'started '.green.bold + 'on port '.blue + '8004 '.yellow + 'with proxyRequest handler'.cyan.underline + ' and latency'.magenta);

lib/node-http-proxy.js

@@ -114,6 +114,8 @@ exports.createServer = function () {
 
 var HttpProxy = exports.HttpProxy = function (options) {
   events.EventEmitter.call(this);
+  
+  options = options || {};
   this.options = options;
   
   if (options.router) {
@@ -184,7 +186,6 @@ HttpProxy.prototype.proxyRequest = function (req, res, port, host, paused) {
   // always ignore the proxyTable if an explicit `port` and `host`
   // arguments are supplied to `proxyRequest`.
   //
-  
   if (this.proxyTable && !host) {
     location = this.proxyTable.getProxyLocation(req);