v4.0.2

Features

• Added event.detail to single-spa:app-change, single-spa:no-app-change, and single-spa:routing-event events. The detail is the original routing event (such as PopStateEvent). (#254)
• Added module to package.json, for webpack and other bundlers. (#262)
• Started work on exposing functionality for the dev tools (#266) @frehner

Fixes

• Removed unused import (#257) @mmemory