LONDON — Everton and Crystal Palace announced on Tuesday that they had completed a swap deal involving wingers Brennan Johnson and Dwight McNeil. Wales international Johnson, who has signed a four-year contract at David Moyes’ Everton, only joined Palace in January in a £35 million ($47 million) move from Tottenham. “There were a lot of reasons why I was so keen to join -– the manager, the players, the direction the team is going in,” Johnson told Everton TV. McNeil, 26, had been close to a switch to the Eagles during the January transfer window, but the deal could not be completed in time. Everton finished 13th in the Premier League last season after a disappointing end to the campaign, two places above Palace.