Acq+Vandelay : skip unneeded vandeley forms

Acq+Vandelay : skip unneeded vandeley forms

If all lineitems in question are linked to catalog records, avoid
showing the unnecessary vandelay form.  This was already true from the
PO activation action, but this patch adds the same check to the
create-po action from a selection list and PO 'load bibs and items'.

Minor label change for consistency in li_table (Queue -> queue).

Signed-off-by: Bill Erickson <berick@esilibrary.com>