Merge pull request #66 from insales/no_cache_s3_refactor_private_uploads

Забыли вызвать чтение у StringIO

lib/paperclip/storage/no_cache_s3.rb

@@ -97,7 +97,7 @@ module Paperclip
         return unless synced_to?(self.class.main_store_id)
 
         if self.class.download_by_url
-          create_tempfile(URI.parse(presigned_url(style)).open)
+          create_tempfile(URI.parse(presigned_url(style)).open.read)
         else
           download_from_store(self.class.main_store_id, style_key)
         end