Added Youtube download option

I agree that the code could be optimized. 
Also there is some duplicate code in the project which could be re-factored to make it re-usable. 

I can help out there.
Yeah I know what you mean @RolfKoenders, it's really hard to chose if the first is the artist or the title, because even that varies...

But I think it would be nice that IF a `-` is present, to split the title and artist up around the first `-` (just in case there are multiples, we wouldn't want to exclude the rest of the title)