jashkenas/underscore — pull request #1363 by tinganho (2013-11-28 09:53:23+00:00)
Title: Added pass test for _.pick

It would be convenient to have pass test callback _.pick();

for instance:
```javascript
_.pick({a:1, b:2, c:3}, function(key) { if( key != 'b') return true});
// returns {a: 1, c:3}
```