Version 3.0.0

Major

• Support Node.js v8+, from v6+.

Minor

• Support the nullable literal type (?).
• Support the void literal type (function(): void).
• Automatically adjust heading levels in descriptions and examples to suit the surrounding document.

Patch

• Updated dependencies.
• Reduced the published size of package.json by moving dev tool configs to separate files.
• Removed .html from usejsdoc.org links.
• Removed the test file glob from the test:js script args as tap now finds the files automatically.
• Refactored typeJsdocAstToMdAst.
• Test typeJsdocAstToMdAst with an unknown type, and more clearly test every possible type.
• Test outlineMembers with missing members.
• Test membersToMdAst with a parameter default value.