MILAN, Feb 19 : Four years after she stepped away from her sport saying she had lost her love for it, American Alysa Liu skated on Thursday night as though she had flicked the light back on in a long-darkened disco, and soared to Olympic women's gold. Her joyful programme to Donna Summer's "MacArthur Park" - in a glittering gold dress with her striking brunette and platinum-blonde striped hair - felt much more about fun than perfection. The reigning world champion started the day in third, but