Security fix for Launchpad Bug 1003052.

Security fix for Launchpad Bug 1003052.

Bug reported by James Fournie:

Revoking the UPDATE_MARC permission doesn't actually seem to prevent a
user from editing a record. Our use case is that we would like a user
to create new records but not edit existing MARC records.

Changing CREATE_MARC to UPDATE_MARC in OpenILS::Application::Cat's
biblio_record_replace_marc() method seems to fix the problem.

Signed-off-by: Jason Stephenson <jstephenson@mvlc.org>
Signed-off-by: Lebbeous Fogle-Weekley <lebbeous@esilibrary.com>