Module connectors/fs.py runs into an error with option publishwithupsert

[sas-rocks]

The module connectors/fs.py needs to be modified to work with option: publishwithupsert: The statement in current line 117: publish_with_upsert=prop('publishwithupsert', dtype='boolean') needs to be replaced with publishwithupsert=prop('publishwithupsert', dtype='boolean')