Bug 27751: Phase out jquery.cookie.js: Batch item modifications

Bug 27751: Phase out jquery.cookie.js: Batch item modifications

To test, apply the patch and go to Tools -> Batch item modification.

- Submit a batch of barcodes for modification.
- Uncheck some checkboxes to hide columns in the table showing your
  submitted items.
- Return to the batch item modification page and submit your batch
  again.
- The columns you selected should still be hidden.
- Submit a batch of items for deletion.
- The same columns should be hidden here too.
- Also test that the "Show all columns" and "Hide all columns" buttons
  work and that the changes persist across batches.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>