On vacation on Richard Branson's Necker Island
                                
                                
                                    (Newser) -
                                    The Obamas are relaxing post-White House at Necker Island, the luxury Caribbean island owned by Virgin founder Richard Branson. Barack Obama's latest vacation activity? Learning to kitesurf,  Time  reports. On his  blog , Branson notes that Obama wasn't allowed to enjoy watersports, which he previously loved, while president. As...