By Kate Kelland LONDON (Reuters) - Robert Edwards, a British Nobel prize-winning scientist known as the father of in-vitro fertilization (IVF) for pioneering the development of "test tube babies", died on Wednesday aged 87 after a long illness, his university said. Edwards, who won the Nobel prize for medicine in 2010, started work on fertilization in the 1950s, and the first so-called test tube baby, Louise Brown, was born in 1978 as a result of his research. ...