0.2.3 / 2019-11-18 * test_api_client.py: do not test /walk parameter validation * test_api_client: check HTTP status codes for bad requests * client.py: renamse check_status -> raise_for_status * add tests for parameter validation * REST API doc: document /last for all applicable methods * add /last sub-endpoint to only return destination in walks * REST API tests: skip /walk (currently disabled) * REST API: disable /walk * REST API doc: clarify edge restriciton semantics for the backward graph * REST API doc: fix minor markup error