mapbox/dyno — pull request #37 by mick (2014-10-08 18:34:34+00:00)
Title: support NULL/NON_NULL conditionals

ref #36

This is now supported:
````
dyno.updateItem(key, actions, {
expected: {
'range': 'NOT_NULL',
'id': {'EQ': 'yo'}
}
}, function(err, resp){});
````