Add code for resumable downloads from S3

storage/s3.py

@@ -83,6 +83,9 @@ class S3Storage(BaseStorage):
     key.set_contents_from_string(content, encrypt_key=True)
     return path
 
+  def get_supports_resumable_downloads(self):
+    return True
+
   def get_direct_download_url(self, path, expires_in=60):
     self._initialize_s3()
     path = self._init_path(path)