Setting HTTPS hostname verification to be on by default when using TLS

Signed-off-by: James Sutton <james.sutton@uk.ibm.com>

Author: jpwsutton

org.eclipse.paho.client.mqttv3/src/main/java/org/eclipse/paho/client/mqttv3/MqttConnectOptions.java

@@ -65,7 +65,7 @@ public class MqttConnectOptions {
 	private char[] password;
 	private SocketFactory socketFactory;
 	private Properties sslClientProps = null;
-	private boolean httpsHostnameVerificationEnabled = false;
+	private boolean httpsHostnameVerificationEnabled = true;
 	private HostnameVerifier sslHostnameVerifier = null;
 	private boolean cleanSession = CLEAN_SESSION_DEFAULT;
 	private int connectionTimeout = CONNECTION_TIMEOUT_DEFAULT;