My dog digs Jackson Hole, as the bumper sticker goes. Jackson Hole real estate activity: NEW: Polo Ranches home with 5 beds, 3,000+ square feet of living, listed for $1.395 million. NEW: Teton Pines cluster home on the 13th hole of the Arnold Palmer course, 3,800+ square feet, $2.1 million. NEW: 2-bed Golf Creek townhouse, off third hole at Jackson Hole Golf & Tennis, $520,000. NEW: Aspens...