LP#1341703 Thinko in Batch Edit (hidden by older OpenSRFs)

There's a bug on line 272 of O::A::Cat.pm where we called a non-existent
method named respond_complete on the invocant object. Instead, we need to
call that on the client object (spelled $conn in this method). Batch bib
edit won't work on new OpenSRF's until this is fixed.

Signed-off-by: Mike Rylander <mrylander@gmail.com>
Signed-off-by: Bill Erickson <berick@esilibrary.com>