(Editor's note: This story was updated at 6:00 p.m. on Nov. 4 to include new information from Pentagon officials on plans for additional Joint Strike Fighter testing as well as from Lockheed Martin on a new target date for first flight.) Concerned that production F-35 aircraft are not ready for prime time, the Pentagon is directing six additional months of testing for the first Joint Strike Fighters off the assembly line, a previously unreported development that will delay pilot...