He's gone to Middle Earth and now he's back again: Peter Jackson has finally agreed to executive-produce not one, but TWO films of "The Hobbit." New Line Pictures, which produced the massively successful and critically acclaimed "Lord of the Rings" films, had originally dumped Jackson from the "Hobbit" sequels because of ongoing disputes over profits Jackson claimed he was owed for "The Fellowship of The Ring." But this morning's press release declares that all litigation......