v3.0.0

⚠️ Breaking changes

• Changed the API from rbush(...) to new RBush(...). #93
• RBush is now published as a ES module with a modern syntax, while still providing a ES5-compatible UMD build for browsers and Node. #89
• Removed the format constructor argument, eliminating eval-like code and making RBush fully compliant with strict CSP environments. The new way to define custom formats is described here.