The performance artist who turned heads and made headlines with a bizarre interpretive dance before the Portland City Council in March is taking her show about incontinence to Scotland. Sara Juli, 39, of Falmouth will perform her original piece, “Tense Vagina: an actual diagnosis,” at the Edinburgh Fringe Festival in August. The festival in Scotland was the first and remains the largest alternative and experimental theater festival of its kind, and one of the largest gathering of artists in the world.