Logerr : Experimenting with window.onerror, trying to make JavaScript debugging easy.
What does it do?
Provides JavaScript error details in a readable format. ...
Crafty : JavaScript Game Engine, HTML5 Game Engine
rsvp.js : A lightweight library that provides tools for organizing asynchronous code
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.
InstantClick : InstantClick is a JavaScript library that dramatically speeds up your website, making navigation effectively instant in most cases.
Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods