v1.3.1

Direct download: unordered_dense.h

What's Changed

• Enable consistent .clang-tidy style style, fix all style warnings by @martinus in #23
• add versioning namespace with a test. Fixes #13 by @martinus in #25
• Fixes deallocation of nullptr bucket by @martinus in #26

Full Changelog: v1.3.0...v1.3.1