Removed stalled update logic in task scheduling to avoid ending up with duplicate UpateWorkerTasks when the updates slow down.  Changed producer to stagger guests' connector updates smoothly around 3/4 of the day instead of all at once.  Added optional updateTime parameter to connector update related APIs to support staggering of connector update scheduling.
Merge branch 'v0.9.0025-deploy-131218b' into upstream_development
Fixed problem in admin with default page being 0 and causing negative offsets.  The default value is now 1 and the page is bounds checked to be valid.