Patch 1

For some reaction (maybe order of elements) the columns options do not executes as wanted.

```javascript
$('elm').AwesomeGrid({
  'columns': {
    'defaults': 5,
    '1200': 4, // more than one kind of media query
    '800': 3,
    '500': 2
  }
});
```

This update resolves this issue.