==================
- Test against Python 3.6.
- [runner] *Backwards-incompatible*: The `runner` module is deprecated. Install `aiohttp-devtools` and use the `adev runserver` command instead.
- [path_norm] *Backwards-incompatible*: The `path_norm` module is removed, as it is now available in `aiohttp` in `aiohttp.web_middlewares.normalize_path_middleware`.