update jquery-cron to have a option 'enableSeconds'. Right now this jst lets it correctly parse a 6 part cron with the first part being seconds. I needed this to support Quartz scheduling. Although currently there is no UI to support selecting seconds but you can now turn it on and read or output it with 0 seconds or add custom crons
it nows outputs ? in the day of week or the day of month as per cronmaker and other crons