Better permissions

I found a few issues with the permissions used by this module.

Firstly, the 'simplify node hide settings' permission was not intuitive. It's hard to know what it means so should be re-named.

Secondly, let's say I wanted to apply the Simplify settings to all users except the Administrator. There's no way to do this because checking the box for 'Authenticated' in Drupal 7 also applies that permission to all other roles (such as 'Administrator'). I think this needs to be reversed (i.e. have a permission to override Simplify's settings, so that all users see the simplified interface except those selected).