loglevel : Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods
ProseMirror : In-browser structured text editing component. A toolkit for building rich-text editors on the web.
Vex : Vex is a modern dialog library which is highly configurable, easily stylable, and gets out of the way. You'll love vex because it's tiny (6kb minified...
Leaflet : A Modern, Lightweight Open-Source JavaScript Library for Interactive Maps
polyfill : polyfill makes web development less frustrating by selectively polyfilling just what the browser needs. Use it on your own site, or as a service.
Automatic and enhanced Google Analytics tracking for common user interactions on the web.
