Edit title granularity/permisions

Hi there,

First of all, thanks for the module, Good job :)

I think it'd be nice to add some permissions on who can edit the title once it's been auto-generated.

Some thing like "do not hide edit field" or "always access edit title". That permission could allow a role to always have access to edit title field even if the "Automatically generate the title and hide the title field" option has been chosen.

This feature would be very helpful for admin purposes, I've found that sometimes (usually when someone makes a mistake on the node creation) I need to manually edit a title.

I understand that if I choose the "Automatically generate the title if the title field is left empty" I can still do that but then I give any user the option to write/edit the node title which it's not what I want, only certain roles should have that permission.

Does it make sense?

Hope you have the time to implement this feature. I think it'd improve an already great module.

Thanks again