LP#1440890: add vandelay_queue to the types of containers retrieved by batch edit

LP#1440890: add vandelay_queue to the types of containers retrieved by batch edit

To test
-------
[1] Perform a batch bibliographic record import, then add the import
    queue to a new bucket.
[2] In the web staff client, go to Cataloging | Batch Edit.
[3] Note that the bucket created in step 1 does _not_ appear in the
    bucket selector on the batch edit page.
[4] In the web staff client, go to the record bucket and hit the
    Batch edit button.
[5] Note that the bucket created in step 1 does _not_ appear in the
    bucket selector on the batch edit page.
[6] Apply the patch and repeat steps 2-3. This time, the bucket
    should appear in the selector.
[7] Repeat steps 4-5. This time, the bucket should appear in the selector
    (and be the active choice).

Signed-off-by: Rogan Hamby <rhamby@esilibrary.com>
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>