Update wheel to 0.30.0

[pyup-bot]

There's a new version of wheel available.
You are currently using 0.29.0. I have updated it to 0.30.0

These links might come in handy: PyPI | Changelog | Repo

Changelog

0.30.0

======

• Added py-limited-api {cp32|cp33|cp34|...} flag to produce cpNN.abi3.{arch}
  tags on CPython 3.
• Documented the license_file metadata key
• Improved Python, abi tagging for wheel convert. Thanks Ales Erjavec.
• Fixed > being prepended to lines starting with "From" in the long description
• Added support for specifying a build number (as per PEP 427).
  Thanks Ian Cordasco.
• Made the order of files in generated ZIP files deterministic.
  Thanks Matthias Bach.
• Made the order of requirements in metadata deterministic. Thanks Chris Lamb.
• Fixed wheel install clobbering existing files
• Improved the error message when trying to verify an unsigned wheel file
• Removed support for Python 2.6, 3.2 and 3.3.

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖

[pyup-bot]

Closing this in favor of #33