Bug 10464: Patron search on placing a hold now supports autocomplete

Bug 10464: Patron search on placing a hold now supports autocomplete

The patron search box for placing a hold request on a bib in the
staff interface now supports autocomplete if the CircAutocompl
system preference is enabled.

This patch grabs the autocomplete handling javascript stuff from patron-search-box.inc
and puts an adjusted version on reserve/request.tt.  It sets form and input
IDs to match those configured in the autocomplete call, adjusted where needed to
avoid name collisions with the patron-search-box.inc that is present everywhere.

This patch also doubles the width of the patron search input field.

To test:
- On a biblio record, go to the Holds tab, mine looks like
  /cgi-bin/koha/reserve/request.pl?biblionumber=2
- A search box is shown for patron searching.
- Search for a patron: it works as usual.
- Make sure CircAutocompl is "Don't try"
- Apply the patch
- Click the Holds tab again, and do the same search: functionality should remain intact.
- Change CircAutocompl to "Try"
- Click the Holds tab again
- Autocomplete should show you the possible options, and once you choose one result,
  it should work as usual.

Sponsored-by: Universidad Nacional de Córdoba
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Passes all tests and QA script.
Adding a nice new autocomplete feature.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit dc94a9bef79dc6d186fe93d82dac10cab0468d24)
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>