use original filename when no name is provided when uploading a file
Merge pull request #160 from Kunstmaan/fix_empty_name

use original filename when no name is provided when uploading a file
Merge pull request #161 from Kunstmaan/fix_svg_thumbnails

do not try to make thumbnails for svg images
Merge branch 'master' into fix_svg_thumbnails

* master:
  use original filename when no name is provided when uploading a file