Bug 24043: Fix retrieval of of status name

Bug 24043: Fix retrieval of of status name

This patch modifies the way in which a request's status name is
retrieved. I think the previous way it was done (which can never have
worked properly) must have come from a time when we weren't embedding
the request's backend capabilities in each request. So now we can just use
the current row.

Test plan:

1. *Before applying the patch*:
2. Ensure you have at least two requests, from two different backends.
One of the backends you are using must have a possible status that
doesn't exist in the other. For example, the BLDSS backend has a status
of STAT, that doesn't not exist in any other backends.
3. Ensure that the request who's backend has the unique status is *not*
the first request in the returned list.
4. Load the "View ILL requests" page
5. Observe that the page JS fails with a "Cannot read property 'name' of
undefined" error
6. Apply the patch
7. Reload the page (maybe doing a hard reload to ensure the JS is not
cached)
8. TEST: Observe that the error no longer occurs and the requests all
have their statuses displayed correctly.

Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>