Fix i18n problems

In the QmlEngine, a few tr() have been replaced by
QCoreApplication::translate().
In other files, Q_OBJECT has been added to the class definitions.

Change-Id: Ia0505c19934dc691cd3d67f4946293290c2fec68
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Daniel Teske <daniel.teske@theqtcompany.com>
Reviewed-by: hjk <hjk@theqtcompany.com>

src/plugins/cmakeprojectmanager/cmakesettingspage.cpp

@@ -378,6 +378,7 @@ void CMakeToolItemConfigWidget::load(const CMakeToolTreeItem *item)
 
 class CMakeToolConfigWidget : public QWidget
 {
+    Q_OBJECT
 public:
     CMakeToolConfigWidget() : m_currentItem(0)
     {
@@ -572,3 +573,5 @@ void CMakeSettingsPage::finish()
 
 } // namespace Internal
 } // namespace CMakeProjectManager
+
+#include "cmakesettingspage.moc"