Ghana#039;s President John Mahama has said he and other African leaders will discuss plans next week to quot;deal permanentlyquot; with Boko Haram militants. He said he wanted African Union (AU) countries to produce a quot;specific plan of actionquot; for tackling the Nigeria-based Islamist group collectively. quot;This has to end. We have to make this terror end,quot; he said. Boko Haram has seized control of many towns and villages in north-east Nigeria in a six-year insurgency. It has also begun threatening Nigeria#039;s neighbours and earlier this week launched a raid on a military base in northern Cameroon. Cameroon fight Mr...