Bug 10862: Add search history to the intranet interface

Bug 10862: Add search history to the intranet interface

Like OPAC, the search history is now available for intranet.  This
is controlled by the EnableSearchHistory system preference.

Test plan:
 1/ Switch on the 'EnableSearchHistory' syspref.
 3/ Launch some biblio and authority searches.
 4/ Go on your search history page (top right, under "Set library").
 5/ Check that all yours searches are displayed.
 6/ Click on some links and check that results are consistent.
 7/ Delete your biblio history searches.
 8/ Delete your authority searches history searches.
 9/ Launch some biblio and authority searches
10/ Play with the 4 delete links (current / previous and biblio /
authority).

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>