Wtforms-html5

Bugfixes

- :hammer: fix tasks and template for CHANGELOG

Features

- :white_check_mark: add support for Python `3.10`

Changes

- :hammer: use [Towncrier](https://github.com/twisted/towncrier) for CHANGELOG
generation (and switch back to Markdown)
- :rotating_light: use `flake8` instead of `flakehell` as Python linter
- :package: use [pip-tools](https://github.com/jazzband/pip-tools) to generate
a constraints file for requirements
- :sparkles: update Makefile: set `$PATH` for virtual environment, add `audit`
task and update tasks for testing and packaging

Deprecations and Removals

- :coffin: remove the support for _end of life_ Python versions `2.7` and `3.6`

Add some polish to the CI.

Added Features

- 📝 added badges for various CI checks and stuff to the README

Changes

- 👷 switched CI from [Travis](https://travis-ci.org/) to Github actions
- ➕ switched to [xdoctest](https://xdoctest.readthedocs.io/) for _doctest_

Moved to a `src/` layout. Also differentiate more between dev- and install
dependencies. Local development is done via `Makefile` (and virtual
environment, with package in _edit-able_ mode), CI testing via `tox` (and
generated environments, with distributed package version).

Added Features

- 🚨 Added _editorconfig_ configuration.
- 🚨 Added _pre-commit_ configuration.

Changes

- 🏗 Switched to a `src/` layout. Install package editable for dev setup.
- 📦 Switched to a contemporary (declarative) build setup with `setup.cfg`
and `build`.
- 📌 Only development requirements are kept in _requirement files_ (unpinned).
Package dependencies are kept in `setup.cfg` (loosely pinned as needed).
- 🚨 Moved all linting to _pre-commit_ (and _Black_).

Removed

- 📦 Ditched _Pipfile_ (and related tooling).

All around update.

Added Features

- ✨ Added support for `maxlenght` and `minlength`. **Thanks** to
[Gowee](https://github.com/Gowee). Closing [Issue
4](https://github.com/brutus/wtforms-html5/issues/4).

- ✅ Added tested support for Python `3.6` and `3.7`.

Changes

- 📦 Added _Pipfile_ for [Pipenv](https://github.com/pypa/pipenv).

- 🚨 Use [autopep8](https://github.com/hhatto/autopep8) for automatic
formatting.

- 📝 Use [reno](https://pypi.org/project/reno/) for CHANGELOG generation.

Updates

- 🏗 Updated `Makefile`.

- 📝 Updated docs.

- 👽 New import path for `MultiDict` from
[Werkzeug](https://palletsprojects.com/p/werkzeug/).

Removed

- 🔥 Removed old `CHANGES.md`.

Misc

- 👥 Added new contributor: [Gowee](https://github.com/Gowee) - Thanks!

Small code re-factoring.

Changes

- ♻️ Put each auto–setting in it's own function.

- 📦 Changed linting tool-set from
[flake8](http://flake8.pycqa.org/en/latest/) and
[pylint](https://www.pylint.org/) to
[pylama](https://github.com/klen/pylama).

Updates

- 📝 Updated the docs.