Port to new connect api

conf/widgetannottools.cpp

@@ -266,8 +266,8 @@ EditAnnotToolDialog::EditAnnotToolDialog( QWidget *parent, const QDomElement &in
     QPushButton *okButton = buttonBox->button(QDialogButtonBox::Ok);
     okButton->setDefault(true);
     okButton->setShortcut(Qt::CTRL | Qt::Key_Return);
-    connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
-    connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
+    connect(buttonBox, &QDialogButtonBox::accepted, this, &EditAnnotToolDialog::accept);
+    connect(buttonBox, &QDialogButtonBox::rejected, this, &EditAnnotToolDialog::reject);
     okButton->setDefault(true);
 
     QLabel * tmplabel;

core/chooseenginedialog.cpp

@@ -29,8 +29,8 @@ ChooseEngineDialog::ChooseEngineDialog( const QStringList &generators, const QMi
     QPushButton *okButton = buttonBox->button(QDialogButtonBox::Ok);
     okButton->setDefault(true);
     okButton->setShortcut(Qt::CTRL | Qt::Key_Return);
-    connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
-    connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
+    connect(buttonBox, &QDialogButtonBox::accepted, this, &ChooseEngineDialog::accept);
+    connect(buttonBox, &QDialogButtonBox::rejected, this, &ChooseEngineDialog::reject);
     okButton->setDefault(true);
     QWidget *main = new QWidget( this );
     m_widget = new Ui_ChooseEngineWidget();

shell/main.cpp

@@ -29,9 +29,10 @@
 
 int main(int argc, char** argv)
 {
+    QApplication app(argc, argv);
+
     KAboutData aboutData = okularAboutData();
 
-    QApplication app(argc, argv);
     app.setApplicationName(aboutData.applicationData().componentName());
     app.setApplicationDisplayName(aboutData.applicationData().displayName());
     app.setApplicationVersion(aboutData.version());