Not disconnect on 3rd PING failure

modules/xmpp/strophe.ping.js

                         GlobalOnErrorHandler.callErrorHandler(
                             new Error(errmsg));
                         logger.error(errmsg, error);
-                        self.connection.disconnect();
+                        // FIXME it doesn't help to disconnect when 3rd PING
+                        // times out, it only stops Strophe from retrying.
+                        // Not really sure what's the right thing to do in that
+                        // situation, but just closing the connection makes no
+                        // sense.
+                        //self.connection.disconnect();
                     } else {
                         logger.warn(errmsg, error);
                     }