mainwindow: set window title

gui/mainwindow.cpp

@@ -23,6 +23,7 @@ MainWindow::MainWindow(QWidget *parent) :
 	ui(new Ui::MainWindow)
 {
 	ui->setupUi(this);
+	setWindowTitle(QCoreApplication::applicationName());
 	QSettings settings;
 
 	db = QSqlDatabase::addDatabase("QSQLITE");