DAKAR - Nigeria's President Goodluck Jonathan has rejected the idea of a swap of Boko Haram prisoners for schoolgirls who were kidnapped by the Islamist group a month ago, Britain's minister for Africa said after talks with him in Abuja on Wednesday."He made it very clear that there would be no negotiations with Boko Haram that involved a swap of abducted schoolgirls for prisoners," Mark Simmonds told a news conference.