Index futures are quiet Sunday night, sort of like an anthrax-spore sizing up a new host, or a cobra fixing to snare a dormant rodent.  Summer’s over, and it’s unlikely the markets will remain quiescent for long. Will the next big move be up? Last year, the Dow tacked on 1000 points right after Labor Day.  I’d bet dollars to donuts, though, that it’s not about to happen again.