Inquirer editor stuns colleagues by retiring In Philadelphia for 17 months, he says 'it's time' By WILLIAM BUNCH & CHRIS BRENNANIT WAS A story that a newsroom full of some of Philadelphia's most hardened, veteran journalists didn't see coming - even when Inquirer publisher Bob Hall called them to the city desk for a late-afternoon announcement.Walker Lundy, the 60-year-old Inquirer editor who'd arrived in town just 17 months ago with big plans for reinvigorating Philadelphia's largest newspaper, had decided to retire this summer.Hall said yesterday that Lundy's surprising move "was really more of a personal decision" and that tight fiscal...