1. Deprecated: `getdoc()`;
2. Feature: support app['lessweb.routes'];
3. Feature: support multiple positional-only parameters;
4. Feature: add e2e test (new tests/e2e/ dir);
5. Feature: when incorrectly used, raise TypeError as the standard specification;
6. Feature: add autopep8 linter;
7. Feature: assert endpoint name compatible with method-path;
8. Feature: Route add member: endpoint;