LONDON (Reuters) - Britain's Labour Party said it would cut rail season tickets and peak time fares by a third, saving the average commuter more than 1,000 pounds ($1,280) a year, under its plan to return rail services to public ownership if it wins an election this month.It said the move, which will apply to regulated fares that make up almost half of all tickets sold from January, would give relief to millions of rail commuters from years of price rises.Labour has already proposed a host of..