Version 4.0.0

Improves consistency of is-a relationships and updates dependencies.

What's Changed

• Tell analyzer about bin/ and web/ directories by @glesica in #42
• Bump all the versions by @glesica in #45
• Fix is-a include bug by @glesica in #48
• Bump version and update docs by @glesica in #49

Full Changelog: v3.1.1...v4.0.0