Add HTTP handler registration to the HTTP server

tests/standalone/src/io/HttpTest.dart

Index: tests/standalone/src/io/HttpTest.dart
diff --git a/tests/standalone/src/io/HttpTest.dart b/tests/standalone/src/io/HttpTest.dart
index 545b1a0925ad91df2a5a00f9de48f57aceabe332..df198bda53f8ebc1c894bb4840ec403ee8e09904 100644
--- a/tests/standalone/src/io/HttpTest.dart
+++ b/tests/standalone/src/io/HttpTest.dart
@@ -186,7 +186,7 @@ class TestServer extends Isolate {
         _server = new HttpServer();
         try {
           _server.listen("127.0.0.1", 0);
-          _server.onRequest = (HttpRequest req, HttpResponse rsp) {
+          _server.defaultRequestHandler = (HttpRequest req, HttpResponse rsp) {
             _requestReceivedHandler(req, rsp);
           };
           replyTo.send(new TestServerStatus.started(_server.port), null);
@@ -515,7 +515,7 @@ void testExpires() {
 
 
 void main() {
-  //testStartStop();
+  testStartStop();
   testGET();
   testPOST(true);
   testPOST(false);