adding arrow to sorting column
fixing arrow
Merge pull request #28 from AcklenAvenue/C9-3-as-an-admin-user-i-can-see-all-users-sorted-by-first-last-name-or-email-address-paged-by-20-items-per-page

C9 3 as an admin user i can see all users sorted by first last name or email address paged by 20 items per page