Cheer up, Washington. Despite the Auntie Em! force winds (that’s National Weather Service nomenclature) and the promise of D.C.’s favorite weather forecast on Sunday, the non-committal “wintry mix,” we’ve seen the promised land of spring. A few late season death rattles can’t take that away. They say that late January is the most depressing time of the year for most people. But with the continued cold, getting stuck in the ice daily last week, those…