Variable 'feeds_in_progress_dir' added

When an import did not complete in one run, Feeds will save a temporary file on the file system which is used when the import continues. Previously, this file was saved in 'public://feeds'. Now this directory is configurable by setting the 'feeds_in_progress_dir' variable. The default 'in progress' directory also has been changed. This is now 'private://feeds/in_progress' (or 'public://feeds/in_progress' if you haven't a private file system configured).

You can override this variable by adding the following line to settings.php:
$conf['feeds_in_progress_dir'] = 'private://feeds/in_progress';