Fix powerman is not exited after logout

debian/control

@@ -20,6 +20,7 @@ Build-Depends: cmake,
                libpolkit-qt5-1-dev,
                libpolkit-agent-1-dev,
                libkf5windowsystem-dev,
+               libkf5globalaccel-dev,
                libqt5x11extras5-dev,
                qtbase5-dev,
                qtdeclarative5-dev,

powerman/main.cpp

@@ -17,13 +17,13 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <QCoreApplication>
+#include <QApplication>
 #include "application.h"
 
 int main(int argc, char *argv[])
 {
-    QCoreApplication a(argc, argv);
+    QApplication a(argc, argv);
     Application app;
-    // a.setQuitOnLastWindowClosed(false);
+    a.setQuitOnLastWindowClosed(false);
     return a.exec();
 }