LONDON -- The BBC on Wednesday reversed its controversial decision to scrap the lyrics of two patriotic songs during its annual end-of-summer concert, saying it had found a way around the problem a day after its new director-general took office.Britain’s publicly funded broadcaster said last week that the orchestra would perform instrumental versions of “Rule, Britannia!” and “Land of Hope and Glory,” instead of the traditional audience singalongs on the final night of its Proms concert