[See all issues & PRs for v0.6](https://github.com/requests-cache/aiohttp-client-cache/milestone/5?closed=1)
* Add a `bulk_delete()` method for all backends to improve performance of `delete_expired_responses()`
* Update session cookies after fetching cached responses with cookies
* Update session cookies after fetching cached responses with _redirects_ with cookies
* Add support for additional request parameter types that `aiohttp` accepts:
* Strings
* `(key, value)` sequences
* Non-`dict` `Mapping` objects
* Fix URL normalization for `MultiDict` objects with duplicate keys
* E.g., so `http://url.com?foo=bar&foo=baz` is cached separately from `http://url.com?foo=bar`
* Update `ignored_params` to also apply to headers (if `include_headers=True`)