WebJournal: finer-grained editor restrictions
WebJournal: finer-grained editor restrictions

* Added 'with_editor_rights' argument to 'cfgwebjournal'
  action to provide read-only access to admin interface for
  roles connected with with_editor_rights != 'yes'.

* Added demo authorizations to access WebJournal admin
  interface.

* Added web tests to check access to retricted areas of the
  WebJournal admin interface.

tiborsimko/invenio-access,tiborsimko/invenio-access,inveniosoftware/invenio-access,inveniosoftware/invenio-access