Peter Tork just took that last train to Clarksville. The performer, who died Thursday in Connecticut from complications from cancer, is another of those deaths that causes children of the ’60s to put down their burgers and fries and reach for the metamucil. The so-called “court jester” of The Monkees was 77. Not as cute as Davy Jones (who died in 2012), as lucky as Michael Nesmith (who inherited his mother’s “Liquid Paper” correction fluid business) or as charismatic as Micky Dolenz, Tork nevertheless had a puckish charm and a devoted fan following as one of television’s “Pre-Fab Four.” While…