Bug 9435 [Revised] Use DataTables on libraries and groups administration page

Bug 9435 [Revised] Use DataTables on libraries and groups administration page

Replace the tablesorter plugin with the DataTables plugin on the
libraries and groups administration page.

To test, open the libraries and groups administration page (Administration
-> Libraries and groups). Confirm that table sorting works correctly.

Revision corrects template path to datatables assets.

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