Bluebird CafeThe world of Australian writer Carmel Bird is one in which no hard line is drawn between everyday reality and unvarnished fantasy. Her new novel, The Bluebird Caf, is a delectable concoction. In the brew are an Historic Museum Village (a Tasmanian Disneyland under an enormous glass dome), a verdant horizontal forest, the mysterious disappearance of midget child Lovelygod, anorexic teenager and later famous writer Virginia O'Day who pens letters to