Call her the small wonder or call her the little mermaid, but there’s no stopping for the 17-year-old British phenomenon Ellie Simmonds as she clutched her 2nd Gold at the 2012 London Paralympics. With a world record in the SM6 200m individual medley on Monday she has just added up to her S6400 freestyle title she defended earlier in the games. Setting a new world record, she finished her game…