Change 'Change' button text to 'View' on admin index page if user only has view perm for model

[ciarancourtney]

Somewhat related to https://github.com/ctxis/django-admin-view-permission/issues/5

[lefterisnik]

Yes, I know. This is annoying. I need to override the django templates. I will give it a try.

[ciarancourtney]

@lefterisnik I did try change the django template, although its not an officially 'override-able' template, so it would be difficult to maintain between versions