Bug 9437 [Revised] Use DataTables on itemtypes administration page

Bug 9437 [Revised] Use DataTables on itemtypes administration page

Replace the tablesorter plugin with the DataTables plugin on the
itemtypes administration page.

To test, open the itemtypes administration page (Administration
-> Item types). Confirm that table sorting works correctly.

Revision corrects template path to datatables assets.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Comment: Sorting works. No errors.
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Amended patch: Delete an unused div block (used for pager).
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>