Bug 11499: (regression tests) indexing modes not properly set on generated koha-conf.xml

Bug 11499: (regression tests) indexing modes not properly set on generated koha-conf.xml

t/db_dependent/Search.t creates its own temporary koha-conf.xml and
related files, and it fails to properly set indexing modes for
bibliographic and authority records.

This patch adds regression tests for that.

To test:

 $ prove -v t/db_dependent/Search.t 2> /dev/null | grep 11499

The test should fail unless the main page is applied.

Sponsored-by: Universidad Nacional de Cordoba
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>