Made it **fail** if legacy data_root is present in attributes or on disk
Made it **fail** if legacy data_root is present in attributes or on disk

infochimps-labs/ironfan-pantry,yieldbot/ironfan-pantry,yieldbot/ironfan-pantry,infochimps-labs/ironfan-pantry,yieldbot/ironfan-pantry,infochimps-labs/ironfan-pantry,infochimps-labs/ironfan-pantry,yieldbot/ironfan-pantry