Fix for Bug 7148 - Add some error handling to Acquisitions' Z39.50 search to match...

Fix for Bug 7148 - Add some error handling to Acquisitions' Z39.50 search to match Cataloging's

- Copying over error handling for timeout(10007) and refused(10000)
- Copying over error handling for submission with no targets chosen
- Correcting "cancel" link in the template which was not modified
  when it was copied from cataloging's popup window template.

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>