Bug 10678 - Allow framework selection when creating from Z39.50

Bug 10678 - Allow framework selection when creating from Z39.50

If we are creating a new record, we are forced to use the default framework
and then change it after we have the cataloguing form filled. This patch
adds the option to choose (from a splitted button dropdown) which framework
to use.

To test:
- Apply the patch.
- Go to More > Cataloguing
- Check there's a nice split button that says "New from Z39.50"
a) Click the button, the usual Z39.50 search popup should appear and work as expected
   (check the URL parameters and see frameworkcode= has no value
b) Click on the dropdown arrow, choose a framework and the usual Z39.50 search popup should
   appear, this time frameworkcode= should have the chosen value.

Edit: fixed a small bug that prevented the default framework to be called. Thanks Owen for testing.

Sponsored-by: Universidad Nacional de Cordoba
Signed-off-by: Melia Meggs <melia@bywatersolutions.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Notes on second patch.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>