'Return the configuration (header_) value for the current plugin.
...or the one given by the plugin_name var.'

def get_conf_value(self, value, header='', plugin_name=None):

    if (plugin_name is None):
        plugin_name = self.plugin_name
    if (header != ''):
        plugin_name = ((plugin_name + '_') + header)
    try:
        return self._limits[((plugin_name + '_') + value)]
    except KeyError:
        return []
