Parse configuration in YAML format into a Python dict

    :param filename: filename of a file with configuration in YAML format
    :return: unprocessed configuration object
    :rtype: dict

def read_yaml_configuration(filename):
    '''Parse configuration in YAML format into a Python dict

    :param filename: filename of a file with configuration in YAML format
    :return: unprocessed configuration object
    :rtype: dict
    '''
    with open(filename, 'r') as f:
        config = yaml.load(f.read())
    return config