Stats: reporting holes

[max]

For a few days Channel TEN had less than 7 days data available -- from all sources, it seems. Ideally Shepherd should have flagged this in the stats pretty clearly, so we could immediately see that all grabbers are returning that particular hole. Instead we got two grabbers (ninemsn, yahoo7web) reporting failure and the rest not; it was impossible to tell what the without running Shepherd in debug mode and inspecting the logs.