Change settings text to TLS and explicitly only allow secure protocols

qml/pages/AddConnection.qml

@@ -180,7 +180,7 @@ Dialog {
                     }
 
                     MenuItem {
-                        text: "SSL"
+                        text: "TLS"
                     }
                 }
             }

src/sslrelayconnection.cpp

@@ -11,6 +11,10 @@ SSLRelayConnection::SSLRelayConnection(QSslSocket* socket, QObject* parent) :
 {
     QObject::connect(socket, SELECT<const QList<QSslError>&>::OVERLOAD_OF(&QSslSocket::sslErrors),
                      this, &SSLRelayConnection::socketSslErrors);
+
+    // Disable SSLv3 as it is old and vulnerable. This should use the protocols deemed safe by
+    // the Qt version deployed on the device.
+    sslSocket->setProtocol(QSsl::SecureProtocols);
 }
 
 void SSLRelayConnection::setHandler(ConnectionHandler* handler)