After a police-assault conviction made her a rallying point for activists, an Occupy Wall Street protester was cleared Friday of charges stemming from another confrontation with police. Cecily McMillan was acquitted Friday of obstructing government administration, after her second trial this year. […] In the latest case, prosecutors said McMillan interfered with officers who’d stopped two accused fare-beaters in a Manhattan subway station in December 2013. McMillan claimed to be a lawyer, urged the two not to cooperate with police, hectored the officers and got in the way while shooting video when the officers took the two to a transit...