ansible/ansible — pull request #1000 by mavimo (2012-09-05 11:08:08+00:00)
Title: Add support to removes control param

Execute action only if specified file using param removes exist (execute reverse control of creates).

Some usage eg.:

```yaml
- name: enable apache2 default websites
action: command /usr/sbin/a2ensite $item creates=/etc/apache2/sites-enabled/$item
with_items:
- default
- default-ssl

- name: disable apache2 default websites
action: command /usr/sbin/a2dissite $item removes=/etc/apache2/sites-enabled/$item
with_items:
- default
- default-ssl
```