Bug 25308: Escape querystring for Z39.50 popup from cataloging

Bug 25308: Escape querystring for Z39.50 popup from cataloging

Test plan:

1. For bonus fun, Administration -> MARC Frameworks -> New framework,
with the code A&B and description Ants & Bees
2. In the A&B Actions menu, choose MARC structure since Import won't
work
3. Accept the offer to copy in structure from default
4. Cataloging -> New record -> Ants & Bees
5. Type This & That in the 245$a (and for extra credit, in 020$a, and
create an author authority with an & in it so you can put it in the
100/110)
6. Click Z39.50/SRU search, make sure everything you typed is prefilled
including the parts after &
7. Search for anything that will retrieve a record (the ISBN This &
That probably won't), choose Import
8. Check that the record came back, and verify in the Settings menu that
it's still in the Ants & Bees framework.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>