'Load framework wide configuration, including:
additional template lookup directories'

def load_configuration(self):

    for directory in self.directories:
        possible_path = os.path.join(directory, self.additional_template_paths_config_filename)
        if os.path.exists(possible_path):
            added_paths = self.parse_additional_template_paths(possible_path, directory)
            self.additional_template_paths.extend(added_paths)
