48af117bff
Re-review at 7286d320. -014 (Medium): AreInputsReady gated on value!=null, so a script
returning null (Good quality) permanently blocked change-triggered dependents at
BadWaitingForInitialData; now gates on the StatusCode Good bit only + test. -015:
TimerTriggerScheduler.Start throws on double-call. -016: fix wrong status-code comment.