NASA fuels space shuttle for second launch try

* Shuttle launch scheduled for 5:40 a.m. EDT (0940 GMT)* Fuel leak stymied first launch try* Shuttle to deliver Japanese porch to space stationBy Irene KlotzCAPE CANAVERAL, Fla., June 16 (Reuters) - Delayed by bad weather, NASA on Tuesday began filling space shuttle Endeavour's fuel tank for launch, hoping to begin a key construction mission at the International Space Station.Fueling