“You’re officially open,” Mayor Richard Hofeld declared after snipping the blue ribbon on Friday to mark the reopening of Homewood’s Dairy Queen after it had been closed for six weeks. And with that, staff member Natalie Hamilton brought out a giant sundae covered in chocolate syrup and strawberries and owner Kevin Welsh started passing out spoons encouraging people to taste the delicious ice cream treat. “It’s perfect,” Welsh declared. “Eat it up!” But most people preferred to wait in line to place an order, even though the line was long and the sun . . .