LONDON, United Kingdom (AFP) — J.K. Rowling, creator of the mass-selling “Harry Potter” books, made an impassioned plea Monday for Britons to vote to stay in the EU, warning in a blog posting against rising nationalism across the world. The British author, whose novels and films about the boy wizard have become a global phenomenon, said many of those backing a Brexit in Thursday’s EU referendum were making a protest “against everything about modern life […]