BibEdit: amend textmarc to xmlmarc unit test

* Amends failing textmarc to xmlmarc unit test after the new behaviour.
  (Empty fields are simply ignored now.)  (closes #1269)
WebSearch: fix browsing deleted/restricted records

* Amends the browse_pattern functionality such that deleted and restricted
  records are no longer included in the results unless their collection is
  explicitly defined.  (Only for restricted records and authorized users.)
  (closes #1292)

Co-authored-by: Jerome Caffaro <jerome.caffaro@cern.ch>
Reviewed-by: Tibor Simko <tibor.simko@cern.ch>
DocExtract: journal rawref search fix

* Handles Invenio journal format. The tag was hard coded for INSPIRE.
  (closes #1306)

Reviewed-by: Tibor Simko <tibor.simko@cern.ch>