Bug 9239: Allow the use of QueryParser for all queries

Bug 9239: Allow the use of QueryParser for all queries

With the inclusion of this patch, all searches will (try) to use
QueryParser for handling queries for both the bibliographic and authority
databases if UseQueryParser is enabled. If QueryParser is unavailable,
UseQueryParser is disabled, or the search uses CCL indexes, the old
search code will be used.

To test:
1) Apply patch.
2) Run the unit test with `prove t/QueryParser.t`
3) Enable the UseQueryParser syspref.
4) Try searches that should return results in the following places:
   * OPAC (simple search)
   * OPAC (advanced search)
   * OPAC (authorities)
   * Staff client (header search)
   * Staff client (advanced search)
   * Staff client (cataloging search)
   * Staff client (authorities)
   * Staff client (importing a batch using a match point)
   * Staff client (searching for an item for adding to a label)
   * Staff client (acquisitions)
   * Staff client (searching for a record to create a serial)
   * ANYWHERE ELSE I HAVE FORGOTTEN
5) Disable the UseQueryParser syspref. Repeat at least some of the
   searches you did above.
6) If all searches worked, sign off.

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Elliott Davis <elliott@bywatersolions.com>
Searching still works as expected for variuos places.
QueryParser syspref seemed to be enabled by default

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>