Thumb url parameter finally really fixed
Added a new private method to handle imdb thumb url parameters so finally those thumb images are correct.
It is possible to adjust the newImageHeight and newImageWidth variables to a value of your liking, this way the user has control on how big or small those thumb images going to be. At the moment this is possible only inside the methods that use thumb images. This can also be changed to method parameters, let me know if you would want that.