By Walt Hickey Quadball Seeking to turn the corner as a legitimate sport and vaguely ashamed at the direction the inventor of the game has taken, U.S. Quidditch, Major League Quidditch and soon the International Quidditch Association will rebrand their sport as “quadball.” The names of the positions and balls will remain the same for the time being, as will the rules, but this does move them slightly out from under the shadow of the full might of the Warner Brothers corporation, which does own the copyright on the word “quidditch.” The sport was first played at Middlebury College in Vermont in 2005 taking inspiration from the game in the