WebSearch: fix issue with breadcrumb

* Fixes an issue where the breadcrumb did not display the record title,
  due to using a wrong bibfield field.
pidutils: fix ISSN validation issue

* Fixes an issue where an 8-character non-ISSN string would cause an
  exception.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
WebDeposit: fix field list values update

* Fixes an issue with field lists not being updated with values
  provided by the server.