BibEdit: fix import of record_modify_controlfield
BibEdit: fix import of record_modify_controlfield

* Fixed some problems with the branch, such as missing import of
  record_modify_controlfield() and a wrong call of get_cache_file_contents().

tiborsimko/invenio,tiborsimko/invenio,inveniosoftware/invenio,inveniosoftware/invenio