Refactor typescript message handler
This makes it so that, to register a handler on a given topic, you just
need to call a single function, rather than assembling the entire
flatbuffer request message by yourself.
Change-Id: I540f475d9650ab27efe715a05d7586719045aeed
diff --git a/aos/network/www/main.ts b/aos/network/www/main.ts
index 1840ffb..79a39d8 100644
--- a/aos/network/www/main.ts
+++ b/aos/network/www/main.ts
@@ -7,4 +7,4 @@
PingHandler.SetupDom();
-conn.addHandler(PingHandler.GetId(), PingHandler.HandlePing);
+conn.addHandler('/aos', PingHandler.GetId(), PingHandler.HandlePing);