+add utf-8 validation code, not hooked up properly yet

+ws autobahn / Add code to test websocket client compliance with the autobahn test-suite
+Ping received with a payload too large (> 125 bytes) trigger a connection closure
+cobra / add tracking about published messages
+cobra / publish returns a message id, that can be used when
+cobra / new message type in the message received handler when publish/ok is received (can be used to implement an ack system).

ws/ws.cpp

@@ -226,6 +226,9 @@ int main(int argc, char** argv)
     httpServerApp->add_option("--port", port, "Port");
     httpServerApp->add_option("--host", hostname, "Hostname");
 
+    CLI::App* autobahnApp = app.add_subcommand("autobahn", "Test client Autobahn compliance");
+    autobahnApp->add_option("--url", url, "url");
+
     CLI11_PARSE(app, argc, argv);
 
     // pid file handling
@@ -328,6 +331,10 @@ int main(int argc, char** argv)
     {
         ret = ix::ws_httpd_main(port, hostname);
     }
+    else if (app.got_subcommand("autobahn"))
+    {
+        ret = ix::ws_autobahn_main(url);
+    }
 
     ix::uninitNetSystem();
     return ret;