phiamo/MopaBootstrapBundle — pull request #774 by peshi (2014-01-23 12:34:27+00:00)
Title: Ability to offset (align) a button.

Example usage:

```
$builder->add('submit', 'button', array(
'attr' => array('class' => 'btn-danger'),
'button_offset' => 'col-lg-offset-3 col-lg-9'
));
```