Updated Node examples to be compatible with master
diff --git a/examples/node/greeter_server.js b/examples/node/greeter_server.js
index 2fb95f0..44b44af 100644
--- a/examples/node/greeter_server.js
+++ b/examples/node/greeter_server.js
@@ -36,8 +36,6 @@
 var grpc = require('grpc');
 var hello_proto = grpc.load(PROTO_PATH).helloworld;
 
-var Server = grpc.buildServer([hello_proto.Greeter.service]);
-
 /**
  * Implements the SayHello RPC method.
  */
@@ -50,14 +48,10 @@
  * sample server port
  */
 function main() {
-  var server = new Server({
-    "helloworld.Greeter": {
-      sayHello: sayHello
-    }
-  });
-
-  server.bind('0.0.0.0:50051');
-  server.listen();
+  var server = new grpc.Server();
+  server.addProtoService(hello_proto.Greeter.service, {sayHello: sayHello});
+  server.bind('0.0.0.0:50051', grpc.ServerCredentials.createInsecure());
+  server.start();
 }
 
 main();