Data requests should be sorted by ascending status and request date

1. Login as a user s1.
2. Go to your user profile.
3. Click on Data requests and create a new export data request r1-1.
4. Cancel the request.
5. Create another request r1-2 for s1.
6. Login as another user s2 and create a data request r2.
7. Run cron.

   php admin/cli/cron.php

8. Login as another user s3 and create a data request r3
9. Login as admin and go to "Site administration / Privacy and policies / Data requests"
10. Confirm that the requests are listed in the following order: r3 (Pending), r1-2 (Awaiting approval), r2 (Awaiting approval), r1-1 (Cancelled).
11. View s1's request and approve it.
12. Confirm that the requests are listed in the following order: r3 (Pending), r2 (Awaiting approval), r1-2 (Approved), r1-1 (Cancelled).
13. Run cron again.
14. Refresh the data requests page.
15. Confirm that the requests are listed in the following order: r2 (Awaiting approval), r3 (Awaiting approval), r1-2 (Complete), r1-1 (Cancelled).

Bottom line is:

• The request in the early stage of the process should be the first on the list.
• For requests with the same status, the request which was made earlier should be shown before the later requests.