After more than half a decade, Rossignol has cleaned up its nomenclature — and this ski writer couldn’t be happier. There’s now a simple cleavage down the middle of the French giant’s ski line. On one side, there’s the Sender — the twinned, center-mounted ski line that dominates from the cliffs of the Freeride World Tour to the rails of Hyland Hills. And on the right, there’s now Soul 7. So… the Soul 7 is back? Not exactly. For those looking for…