Path view formatter

Hi,

Attached s a patch that adds the path to the view as a formatter option. Why I needed this:

1. Create a view with row style 'fields' that references nodes which have a viewreference field defined
2. Add the viewreference field as the first output field of the view but hide it ('exclude from display')
3. You may now output the other fields as links ('output this fiels as a link') that point to the referenced view

Hope that makes sense.