views: file_download_ui permissions fix
views: file_download_ui permissions fix

* Fixes issue where file_download_ui did not check read permissions for
  files.

Signed-off-by: Lars Holm Nielsen <7eaffca9f7cd98839b5821d0d23e09ff764b82cd@cern.ch>

inveniosoftware/invenio-files-rest,inveniosoftware/invenio-files-rest