Gone now was the shak-ing, frightened woman who clutched a Bible and barely whispered into the battery of microphones on the day in late ^ptember when she «iiTennereri in Raleigh.She has been replaced by a young woman who spoke boldly and confi-dently at rallies and during the occasional interviews her lawyers permitted before the trial oegan five weeks ago.KVEN HER physicalappearance has changed.Gone are the bushy Afro, the Ihighlcngth miai-skirls, the knee-high boots and sexy slacks. Now she wears short straightened hair, longer, soft, silky dresses and a quiet, almost demure demeanor in the courtroom.Joan Uttle's early years and background would not suggest her lor a naUonai symbol of anylhuig. She grew up without a father in the small farming community of Chocowuiity three mites southeast cd Washington, D.C., in Beaufort County. She spent lime in training school for refusing to go to school.