QHash<QString, QHash<QString, QVariant> > Settings::settingsCache;
QHash<QString, QHash<QString, SettingsChangeNotifier *> > Settings::settingsChangeNotifier;
QHash<QString, QHash<QString, QVariant> > Settings::settingsCache;
QHash<QString, QHash<QString, SettingsChangeNotifier *> > Settings::settingsChangeNotifier;