only try to shutdown in release mode, wait for process

LenaPi/EnergySaver.cpp

@@ -1,6 +1,8 @@
 #include "EnergySaver.h"
 
 #include <QDebug>
+#include <QProcess>
+#include <iostream>
 
 EnergySaver::EnergySaver(QObject *parent) : QObject(parent)
 {
@@ -61,5 +63,10 @@ void EnergySaver::initTimer(int interval)
  */
 void EnergySaver::onTimeout()
 {
-    qDebug() << "shutting down.";
+    std::cout << "Shutting down.";
+#ifndef _DEBUG
+    QProcess p;
+    p.start("/usr/local/sbin/do_shutdown.sh");
+    p.waitForFinished();
+#endif
 }