SAIPAN, Northern Mariana Islands — WikiLeaks founder Julian Assange was sentenced to time served, for the five years he spent in a British prison, following his guilty plea to a felony charge of violating the Espionage Act. The deal, which allows him to return to his native Australia a free man, ends a 14-year saga that began when his organization obtained and published classified military and diplomatic documents in 2010. Assange departed Saipan on Wednesday afternoon.