Bug 9466 [Revised] Use DataTables on saved reports page

Bug 9466 [Revised] Use DataTables on saved reports page

Replace the tablesorter plugin with the DataTables plugin on the
saved reports page.

To test, open the saved reports page (Reports > Use saved).
Confirm that table sorting works correctly.

Revision makes default result count (20) match options for number of
pagination entries (10,20,50,100,all).

Further revision corrects template path to datatables assets.
Further revision fixes JavaScript error as reported by QA

Signed-off-by: Nicole C. Engard <nengard@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>