 mountlib: log when poll-interval is ineffective
 mountlib: log when poll-interval is ineffective

 Notify the user in case poll-interval is used on a unsupported remote

B4dM4n/rclone,ncw/rclone,B4dM4n/rclone,olihey/rclone,seuffert/rclone,yonjah/rclone,olihey/rclone,olihey/rclone,ncw/rclone,B4dM4n/rclone,ncw/rclone,olihey/rclone,seuffert/rclone,ncw/rclone,yonjah/rclone,yonjah/rclone,seuffert/rclone,yonjah/rclone,seuffert/rclone,B4dM4n/rclone