add_link added [ very easy ]

Add link allows you tu specify adding link. It is included in the jquery plugin. You only pass the parameter to the plugin_options.

Example:

```
 model = AutoCompleteSelectField(                                            
        'asset_model', required=True,                                           
        plugin_options=dict(add_link='/admin/assets/assetmodel/add/?name=')                                                                                                       
    )
```
See attachment for effect:

[Zrzut ekranu 2012-12-14 o 11 15 29](https://f.cloud.github.com/assets/552398/12993/577a894e-45d7-11e2-931b-5c88d7d900bc.png)