Keyify v3.0.1

• Update LICENSE for current year.

Closes #31.

Keyify v3.0.0

• Do not build with Node.js 10.

Closes #30.

Keyify v2.0.7

• Build with Node.js 16 on GitHub Actions.
• Build with Node.js 16 on Travis CI.

Closes #29.

Keyify v2.0.6

• Update LICENSE for 2021.
• Build with Node.js 10, 12, 14 and 15 on CI/CD.

Closes #28.

Keyify v2.0.5

• Add "chocolateboy" to contributors. Closes #26.
• Serialize and parse a null value. Closes #25.
• Fix package description

Closes #27.

Keyify v2.0.4

• Upgrade proof to ^9.0.2. Closes #22.
• Update LICENSE for 2020. Closes #21.

Closes #23.

Keyify v2.0.3

• Remove /.dots from .gitignore. Closes #19.

Closes #20.

Keyify v2.0.2

• Create Markdown readme with badges. Closes #17.
• Build with Actions, ship coverage to Codecov. Closes #16. Closes #15.
• Tidy .gitignore. Closes #14.
• Revert Keyify test to Proof. Closes #13.

Closes #18.