bibdocfile: disable HTTP range requests
bibdocfile: disable HTTP range requests

* HTTP Range request support when streaming static files via Python
  is now disabled by default as it currently breaks viewing PDF
  files with Acrobat Reader on Windows platforms when using the
  Reader plugin inside mainstream browsers.

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