(Reuters) - Algerian Djamel Okacha has been named as a new commander in al Qaeda in the Islamic Maghreb (AQIM), replacing Abdelhamid Abou Zeid who was killed in fighting in northern Mali, Algerian Ennahar TV said on Sunday.An Algerian security source said Okacha, 34, was very close to AQIM's leader Abdelmalek Droukdel as both belonged to the Group of Algiers, made up of...