Create Region and Category fields
Fix headers on admin options view
Create root on login to regions view
Add sign out and logo link in application layout

Now our users can sign out. They can also be directed to the root page
(Regions).
Place admin control link in layout/application
Fix typo in Admin Control header

Found in the index view of admin_options.
Change regions name from :region to :regions

had = get "/", to: "regions#index", as: :region
now = get "/", to: "regions#index", as: :regions
Add user email to sign out link.

"You are signed in as [current_user.email] (sign out?)."