Fix reversed discoverability

hasUser: true should equal !discoverable

Author: andylintner

src/main/java/com/beowulfe/hap/HomekitRoot.java

@@ -100,7 +100,7 @@ public void start() {
 		webHandler.start(new HomekitClientConnectionFactoryImpl(authInfo,
 				registry, subscriptions, advertiser)).thenAccept(port -> {
 					try {
-						advertiser.setDiscoverable(authInfo.hasUser());
+						advertiser.setDiscoverable(!authInfo.hasUser());
 						advertiser.advertise(label, authInfo.getMac(), port);
 					} catch (Exception e) {
 						throw new RuntimeException(e);