Bug 20078: Add accelerated reading indexes to getIndexes

Bug 20078: Add accelerated reading indexes to getIndexes

To test:
1 - Find a bib with 526$c and 526$d populated, or populate them
 e.g. 526$a 5.5 | 526$d 14
2 - Try searching for 'arl:5.5' or 'arp:14'
3 - Your record should be returned in results
4 - Add the indexes as dropdowns by entering the following in intranetuserjs:
$(document).ready(function(){
        // Add Accelerated Reading Level to advanced search
    if (window.location.href.indexOf("catalogue/search.pl") > -1) {
        $(".advsearch").append('<option value="arl">Accelerated Reading Level</option>');
    }

    // Add Accelerated Reading Point to advanced search
    if (window.location.href.indexOf("catalogue/search.pl") > -1) {
        $(".advsearch").append('<option value="arp">Accelerated Reading Point</option>');
    }
});
5 - Search using these in the dropdown, your record will not be found
6 - Apply patch
7 - Repeat searches directly and by using dropdown, your record should be returned.
8 - prove t/db_dependent/Search.t

Signed-off-by: Margie Sheppard - Central Kansas Library System CKLS <msheppard@ckls.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>