Libyan protesters say they will keep demonstrating until all the ruling elites quit power after rallies in most main cities on Friday culminated in a crowd storming the parliament building and torching parts of it. Protesters held their biggest rally in Tripoli for years, chanting slogans against Libya’s feuding political elites, and demonstrators blocked off roads in Benghazi and Misrata and set fire to government buildings in Sebha and Qarabuli. “We affirm our determination to continue the path of peaceful demonstration until the last breath to achieve our goals,” the Beltrees youth movement…