Validate the conf for the given index

        :param index: the index of the model to validate
        :type index: QModelIndex
        :returns: True if passed and a False/True dict representing fail/pass. The structure follows the configobj. If the configobj does not have a configspec True is returned.
        :rtype: True|Dict
        :raises: None

def validate(self, index):
        """Validate the conf for the given index

        :param index: the index of the model to validate
        :type index: QModelIndex
        :returns: True if passed and a False/True dict representing fail/pass. The structure follows the configobj. If the configobj does not have a configspec True is returned.
        :rtype: True|Dict
        :raises: None
        """
        c = self.__configs[index.row()]
        if c.configspec is None:
            return True
        else:
            return c.validate(self.vld)