WebSearch: reverse order and scores

* Fixes a bug in presenting search results where,
  When order was inversed, the scores were not, leading
  to the wrong association.

Reviewed-by: Samuele Kaplun <samuele.kaplun@cern.ch>
BibEdit: fix revert when no 005 in history

* Avoids an error when a record tries to be reverted to a version in
  history which did not have the 005 controlfield.

Reviewed-by: Samuele Kaplun <samuele.kaplun@cern.ch>