Bug 33484: Fix for suggestions

Bug 33484: Fix for suggestions

This ugly fix is retrieving all CGI params and consider them attributes
for suggestions. So we need to exclude other ones...

There is more to make it works properly on this table.

Signed-off-by: Pedro Amorim <pedro.amorim@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>