Bug 15745: C4::Matcher gets CCL parsing error if term contains ? (question mark)

Bug 15745: C4::Matcher gets CCL parsing error if term contains ? (question mark)

Signed-off-by: Olli-Antti Kivilahti <olli-antti.kivilahti@jns.fi>

Also fixes ! and +
Rebased to master
Signed-off-by: Tomas Cohen Arazi <tomascohen@unc.edu.ar>
It makes perfect sense and works as expected. This part of the code is too
under-tested so no point requiring a regression test for such a simple change.

Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>
(cherry picked from commit fcbd81049f590e5fc0c31030bcdb1311951c1444)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>