Update wheel to 0.32.0

[pyup-bot]

This PR updates wheel from 0.30.0 to 0.32.0.

Changelog

0.32.0

- Removed wheel signing and verifying features
- Removed the "wheel install" and "wheel installscripts" commands
- Added the ``wheel pack`` command
- Allowed multiple license files to be specified using the ``license_files``
option
- Deprecated the ``license_file`` option
- Eliminated duplicate lines from generated requirements in
``.dist-info/METADATA`` (thanks to Wim Glenn for the contribution)
- Fixed handling of direct URL specifiers in requirements
(PR by Benoit Pierre)
- Fixed canonicalization of extras (PR by Benoit Pierre)
- Warn when the deprecated ``[wheel]`` section is used in ``setup.cfg``
(PR by Jon Dufresne)

0.31.1

- Fixed arch as ``None`` when converting eggs to wheels

0.31.0

- Fixed displaying of errors on Python 3
- Fixed single digit versions in wheel files not being properly recognized
- Fixed wrong character encodings being used (instead of UTF-8) to read and
write ``RECORD`` (this sometimes crashed bdist_wheel too)
- Enabled Zip64 support in wheels by default
- Metadata-Version is now 2.1
- Dropped DESCRIPTION.rst and metadata.json from the list of generated files
- Dropped support for the non-standard, undocumented ``provides-extra`` and
``requires-dist`` keywords in setup.cfg metadata
- Deprecated all wheel signing and signature verification commands
- Removed the (already defunct) ``tool`` extras from setup.py

Links

• PyPI: https://pypi.org/project/wheel
• Changelog: https://pyup.io/changelogs/wheel/
• Repo: https://github.com/pypa/wheel

[pyup-bot]

Closing this in favor of #78