FAISALABAD, Pakistan — In mid-September, a Pakistani judge unexpectedly cleared a Christian teenager of charges that he had ripped up pages containing verses from the Koran, the Christian’s lawyer said. Judge Muhammad Abdul Sattar acquitted Shahid Masih, 18, at a lower court hearing in Faisalabad after prosecution witnesses Mohammad Younis and Khalid Mehmood dropped their claims that Masih’s co-defendant told…