Another Windows compilation fix

src/qinisettings.h

@@ -34,6 +34,8 @@
 #include <QSettings>
 
 class QIniSettings : public QSettings {
+  Q_OBJECT
+
 public:
   QIniSettings(const QString &organization, const QString &application = QString(), QObject *parent = 0 ):
 #ifdef Q_WS_WIN
@@ -49,6 +51,12 @@ public:
 
   }
 
+  QIniSettings& operator =(const QIniSettings &other) {
+    Q_UNUSED(other);
+    Q_ASSERT(0);
+    return *this;
+  }
+
 #ifdef Q_WS_WIN
   QVariant value(const QString & key, const QVariant &defaultValue = QVariant()) {
     QString key_tmp(key);