More robust manifest revalidation code.
More robust manifest revalidation code.

iychoi/syndicate,jcnelson/syndicate,jcnelson/syndicate,jcnelson/syndicate,jcnelson/syndicate,iychoi/syndicate,jcnelson/syndicate,jcnelson/syndicate,jcnelson/syndicate,iychoi/syndicate,iychoi/syndicate,iychoi/syndicate,jcnelson/syndicate,iychoi/syndicate,iychoi/syndicate,iychoi/syndicate