A new leader has been appointed for the Boko Haram terrorists group, which has its stronghold in north east Nigeria. Boko Haram, which pledged its allegiance to the dreadful Islamic State (ISIS) jihadist group, now has Abu Musab al-Barnawi as its new leader. Al-Barnawi replaces Abubakar Shekau, whose whereabouts has remained unknown and a source…