* Update references to `master` branch to say `main`
* Update external links
* Update links in old release notes
Use tagged versions of code rather than current code
Ref #6463, #6428
* pin isort to 5.6.4
* update isort version mentioned in python_guidelines.rst
* make lint commands consistent between make lint and circleci
* fix isort errors on files outside of /wagtail
* speed up isort by ignoring additional directories and filetypes
- use .add_css_file instead of .add_stylesheet in conf.py
- use .add_js_file instead of .add_javascript in conf.py
- fix duplicate clss references in pages model reference (for grouping of methods & attributes)
- rename wagtailspace.js to banner.js (may be used in the future for a generic banner)
This change copies the Wagtail admin favicon.ico (from
wagtail/admin/static_src/wagtailadmin/images) into the Sphinx build
directory so that built docs use the same favicon as the admin.
Makes use of [the Sphinx `html_favicon` setting](http://www.sphinx-doc.org/en/1.5.1/config.html#confval-html_favicon)
which adds this line to the generated HTML:
```html
<link rel="shortcut icon" href="_static/favicon.ico"/>
```
Fixes #4340.
This is where developers expect it to be, similar to Django and other
projects. The version info still exists at the old `wagtail.wagtailcore`
location, for backwards compatibility.
Fixes #2557
Django 1.9 requires this line before importing any models. Autodoc
imported models to get their docstrings, causing errors in the build
process.
Fixes #2014.
