Bump tinymce from 5.3.2 to 5.4.1

Bumps [tinymce](https://github.com/tinymce/tinymce-dist) from 5.3.2 to 5.4.1.
- [Release notes](https://github.com/tinymce/tinymce-dist/releases)
- [Changelog](https://github.com/tinymce/tinymce-dist/blob/master/changelog.txt)
- [Commits](https://github.com/tinymce/tinymce-dist/compare/5.3.2...5.4.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump eslint from 7.4.0 to 7.5.0

Co-authored-by: Andrea Ciantelli <a.ciantelli@dunbar.it>

Bumps [eslint](https://github.com/eslint/eslint) from 7.4.0 to 7.5.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v7.4.0...v7.5.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Add a table of supported Oscar versions to the readme.

Add documentation about the platforms and databases supported by Oscar

Also remove unused migrations test for MySQL.

Remove redundant bulk_edit_form.html from dashboard order list view.

Remove several deprecated model fields from order and partner apps.

Bump isort from 5.1.1 to 5.1.4

Bumps [isort](https://github.com/timothycrosley/isort) from 5.1.1 to 5.1.4.
- [Release notes](https://github.com/timothycrosley/isort/releases)
- [Changelog](https://github.com/timothycrosley/isort/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/timothycrosley/isort/compare/5.1.1...5.1.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump eslint from 6.8.0 to 7.4.0

Bumps [eslint](https://github.com/eslint/eslint) from 6.8.0 to 7.4.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v6.8.0...v7.4.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Update Travis config to use bionic build and PostgreSQL version 10.

Bump pillow from 7.1.2 to 7.2.0

Update pycountry requirement from <19.9,>=19.8 to >=19.8,<20.8

Bump isort from 4.3.21 to 5.1.1

Bumps [isort](https://github.com/timothycrosley/isort) from 4.3.21 to 5.1.1.
- [Release notes](https://github.com/timothycrosley/isort/releases)
- [Changelog](https://github.com/timothycrosley/isort/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/timothycrosley/isort/compare/4.3.21...5.1.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [pillow](https://github.com/python-pillow/Pillow) from 7.1.2 to 7.2.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst)
- [Commits](https://github.com/python-pillow/Pillow/compare/7.1.2...7.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Updates the requirements on [pycountry](https://github.com/flyingcircusio/pycountry) to permit the latest version.
- [Release notes](https://github.com/flyingcircusio/pycountry/releases)
- [Changelog](https://github.com/flyingcircusio/pycountry/blob/master/HISTORY.txt)
- [Commits](https://github.com/flyingcircusio/pycountry/compare/19.8.18...20.7.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Update ipython requirement from <7.16,>=7.12 to >=7.12,<7.17

Update django-extensions requirement from <2.3,>=2.2 to >=2.2,<3.1

Updates the requirements on [ipython](https://github.com/ipython/ipython) to permit the latest version.
- [Release notes](https://github.com/ipython/ipython/releases)
- [Commits](https://github.com/ipython/ipython/compare/7.12.0...7.16.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Use requirements.txt for lint dependencies so that they are pinned.

ProductCreateUpdateView: Avoid AttributeError

DELETE requests were failing with an exception instead
of the appropriate HTTP 405 response.

Fixes https://github.com/django-oscar/django-oscar/issues/3429

Bump ipdb from 0.13.2 to 0.13.3

Updates the requirements on [django-extensions](https://github.com/django-extensions/django-extensions) to permit the latest version.
- [Release notes](https://github.com/django-extensions/django-extensions/releases)
- [Changelog](https://github.com/django-extensions/django-extensions/blob/master/CHANGELOG.md)
- [Commits](https://github.com/django-extensions/django-extensions/compare/2.2.0...3.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [ipdb](https://github.com/gotcha/ipdb) from 0.13.2 to 0.13.3.
- [Release notes](https://github.com/gotcha/ipdb/releases)
- [Changelog](https://github.com/gotcha/ipdb/blob/master/HISTORY.txt)
- [Commits](https://github.com/gotcha/ipdb/compare/0.13.2...0.13.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

PostActionMixin: Avoid fallback when none exists

Fixes https://github.com/django-oscar/django-oscar/issues/3426

Bump requests from 2.23.0 to 2.24.0

Bumps [requests](https://github.com/psf/requests) from 2.23.0 to 2.24.0.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/master/HISTORY.md)
- [Commits](https://github.com/psf/requests/compare/v2.23.0...v2.24.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump uwsgi from 2.0.19 to 2.0.19.1

Remove dead link from readme

django-oscar-erp (or django-oscar_erp) bitbucket link doesn't exist anymore.

Fix display of product class for child products in dashboard order detail template

Bumps [uwsgi](https://github.com/unbit/uwsgi-docs) from 2.0.19 to 2.0.19.1.
- [Release notes](https://github.com/unbit/uwsgi-docs/releases)
- [Commits](https://github.com/unbit/uwsgi-docs/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>