The year 1979 featured both good and bad for the former Beatles.      John was enjoying his time away from the music industry, a world traveler busking around, writing and playing music on his own schedule.     George was promoting a new record, while also traveling the world with an eye on Formula One.     Ringo, on the other hand suffered through major surgery and a house fire in Los Angeles.     Next week, WTWF presents Paul's '79, and the year for other Beatles-related figures.