Spirit Airlines is keeping fares cheap — but adding a Gucci belt. After months of unfounded rumors that the budget airline might close permanently or be sold off, Spirit said Tuesday it has reached a deal to help it emerge from its second Chapter 11 bankruptcy "in late spring or early summer."It has been a rough few years for staff and customers alike: the airline has eliminated unprofitable routes, exited numerous markets, cut pilot and flight attendant pay, and sold millions of dollars' worth of airplanes ...