MARVEL ENTERTAINMENT ANNOUNCE MARVEL CHARACTER THEMED EPISODE OF PROJECT RUNWAY: UNDER THE GUNN, PREMIERING APRIL 3rd, 2014 ON LIFETIME   Hosted by Tim Gunn with Guest Judge JAIMIE ALEXANDER   NEW YORK, NY (April 1, 2014) – Lifetime’s newest fashion competition series, Project Runway: Under the Gunn (#UnderTheGunn), will be “making it work” the Marvel…