Stats back to regular updates (almost)

We’ve got the stats back to their regular 2 hour updates, although we’re keeping the 3rd party stats still to every 12 hours until Sunday morning PST.  We’ve cleaned up some aspects of how the internal stats scripts work and see a way to speed up the stats input significantly (perhaps 4x), but we’ll leave that until this mess has blown over before we start trying to make any further improvements (to avoid introducing any new errors at a sensitive time).