Load items and call itemsLoadedDone to transform data in objects

def loadItems(self, excludeRead=False, loadLimit=20, since=None, until=None):
        """
        Load items and call itemsLoadedDone to transform data in objects
        """
        self.clearItems()
        self.loadtLoadOk    = False
        self.lastLoadLength = 0
        self._itemsLoadedDone(self._getContent(excludeRead, None, loadLimit, since, until))