Covador

======

* [Fix] Do not parse semicolons in urlencoded POST body

======

* [Fix] error_to_dict fail on BadField error.

====

* [Break] ``covador.aiohttp.AsyncValidationDecorator`` removed in favour of unified
sync/async through AST transformation (``_async/gen_validator.py``).
* [Feature] python 3.8 support.
* [Feature] view function can raise ``covador.errors.Invalid`` exception and
covador will handle it with an appropriate error handler.
* [Fix] use AST transformer to get legacy and new style coroutines for
``covador.aiohttp.get_form`` and ``covador.aiohttp.get_json``. Fixes
``coroutine`` deprecation warning in python3.8.

======

* [Fix] Right hand pipe must coerce value to item.

======

* [Feature] web frameworks in integration tests were updated.
* [Fix] aiohttp query_string decorator led to deprecation error.

======

* [Fix] length(min=N) was treated as length(N) -- sequence must
have length of N exactly. This is confusing and wrong behavior.