Add user's profile setting page, test and link to it.
Add update action with validation tests.
Add the authorization to edit page for non-signed in user.(9.2.1)
Add authorization for disable editing another user's page.
Add friendly forwarding(9.2.3).
Add all users index page (9.3.1).
Add pagination to the index page (9.3.3).
Refactored index.html.erb (9.3.4).
Add admin column to the user model (9.4.1).
Finally finished user edit, update, index, and destroy actionsgit add .