mennovanslooten/Observable-Arrays — pull request #3 by jcollum (2013-01-23 18:43:43+00:00)
Title: improved compatibility with node and node console

All tests are passing.

Usage:
```
und = require('underscore');
observableMixin = require('./assets/js/lib/underscore.observable.js');
observableMixin(und);
```

Maybe it should be taking a guess at the existence of the _ variable when it's loaded via require?