Secondly, No lightsider has ever had Force Lightning, not even in the books and Comics.
It's generally frowned upon, but there's a handful of Jedi in the post-movie novels that use it sparingly. Off the top of my head, Jaden Korr and arguably Kyle Katarn have some. Luke uses a special green kind (which I guess makes it ok?). This is without bringing Starkiller / Force Unleashed into the equation obviously, because his questionably canon abilities are best left alone.