By Steve Rushin The past year has provided countless feelgood moments. These are not among them. THREE YARDS AND A CLOUD OF DUSTAfter a fan illicitly scattered the ashes of a loved one onto Heinz Field during the Steelers-Broncos game in Pittsburgh, another fan told WTAE’s Action News 4 that “remains blew onto him and others in the stadium, as well as into their food.” __GRISTLED VETERAN__Twins center fielder Byron Buxton had a root canal in spring training after chipping his tooth while eating a steak\. __DIVER\-TICULITIS__A Cape Cod lobster diver was wholly ingested by a humpback whale that …