accounts: legacy webuser import fix
accounts: legacy webuser import fix

NOTE: beware, patch amended by Tibor to use new file names

inspirehep/invenio-accounts,tiborsimko/invenio-accounts,tiborsimko/invenio-accounts,inveniosoftware/invenio-accounts,tiborsimko/invenio-accounts,inspirehep/invenio-accounts,inspirehep/invenio-accounts,inveniosoftware/invenio-accounts,inveniosoftware/invenio-accounts