nevis
Makes JavaScript more object-orientated
picket
Picket allows you to create large-scale object-orientated architectures in JavaScript
ws-oop.js
A set of methods that help with object orientated javascript programming.
tap-chain
Supplies a single mixin to enable seamless function and method interop - see hughfdjackson.com/javascript/2012/11/30/tapping-into-the-method-chain/