Audit trail for users, and roles

As a Promaster, I want to be able to see when and who created users, and when updates to the users profile was made from within the users section of Process Manager, so that I have a full audit trail of user management that is easy to access.

I would also like to be able to see who is creating roles and when. This is open to all users to be able to create and in some instances there are multiple roles being created, similar roles just worded differently, incorrect roles or responsibilities etc. I would like to be able to identify who is creating them and when they were created so that I am able to provide feedback and training to the right users.