Bug 10144 - koha-start-zebra error handling

Bug 10144 - koha-start-zebra error handling

koha-start-zebra now
- Checks the instance exists.
- Checks the instance is enabled.
- Checks if the zebra daemon is already running.

Regards
To+

Sponsored-by: Universidad Nacional de Córdoba
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Mason James <mtj@kohaaloha.com>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
(cherry picked from commit 98bde26d2571b43ecee07e017e36f45e1aa6e680)

Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>