staged MARC import: handle non-ASCII characters in items

staged MARC import: handle non-ASCII characters in items

The problem occured during the population of
import_items.marcxml -- the MARC::Record object
created to store the item did not have the Leader/09
set to 'a', which means that MARC::File::XML
tried to transcode code the item from MARC-8 to UTF-8, which
breaks since the MARC data is already in UTF-8 at that point.

Signed-off-by: Chris Cormack <crc@liblime.com>
Signed-off-by: Joshua Ferraro <jmf@liblime.com>