LP#1220387 silence deprecation warning in Normalizer

Avoid the following error:

UNIVERSAL->import is deprecated and will be removed in a future perl at
Open-ILS/src/perlmods/lib/OpenILS/Utils/Normalize.pm line 6

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Signed-off-by: Jason Stephenson <jstephenson@mvlc.org>