Implement XEP-0133: Service Administration

Requirement

As a component administrator, I would like to be able to use a familiar interface to manage certain aspects of the component.

Notes

Not every use case documented in XEP-0133 applies, but some clearly do.

1. Add User
2. Delete User
3. Disable User
4. Re-Enable User
5. End User Session
6. Get User Password
7. Change User Password
8. Get User Roster (Get list of endpoints)
9. Get User Last Login Time
10. Get User Statistics
11. Edit Blacklist
12. Edit Whitelist
13. Get Number of Registered Users
14. Get Number of Disabled Users
15. Get Number of Online Users
16. Get Number of Active Users
17. Get Number of Idle Users
18. Get List of Registered Users
19. Get List of Disabled Users
20. Get List of Online Users
21. Get List of Active Users
22. Get List of Idle Users
23. Send Announcement to Active Users
24. Set Message of the Day
25. Edit Message of the Day
26. Delete Message of the Day
27. Set Welcome Message
28. Delete Welcome Message
29. Edit Admin List
30. Restart Service
31. Shut Down Service