Include roll back option as separate permissions in the roles.

In large projects you don't want roll back to be available to everyone. Now we can't see what changes were made by who and what the impact is on the work that is done.

There is also no check question when you click on a rollback. This is executed immediately.

What do we want?

- Separate rights to be able to set for each role who may or may not perform a rollback.

- A check question when you click on Roll back so that you are asked again. Are you sure you want to do a roll back?