Admin Panel Cloud Editing

[almahmoud]

When editing a cloud in the admin panel, if the 'Name' is changed, the cloud gets modified, but if the 'Slug' is changed, it instead creates a new Cloud and keeps both.

[afgane]

The slug is treated as the primary key in the Cloud model (https://github.com/CloudVE/djcloudbridge/blob/master/djcloudbridge/models.py#L39), so it's probably best not to change it as the name (i.e., an identifier) changes.

Should be force unique names?