[DONE] A few duplicated authors

[Rafał]

1) Please merge Rafal Kuc to Rafał Kuć

2) Please merge Marek Rogozi Ski and Marek Rogozi?ski to Marek Rogoziński

3) Please merge Rafal Olbinski and Rafal Olbinsky to Rafał Olbiński

4) Please merge J.R.R. Tolkie and J. R. R. Tolkien to J.R.R. Tolkien

5) Please merge Julian Tuwim i in. to Julian Tuwim. "i in." means "and others" in Polish.

6) Please split Julian Tuwim, J. Kulmowa i inni, il. Zbigniew Rychlicki into Julian Tuwim, Joanna Kulmowa and Zbigniew Rychlicki (Illustrator)

[Abcdarian]

Working on ... and done.

[Rafał]

Thanks :)