SPENCER — The monks of St. Joseph's Abbey follow a Trappist tradition that dates back to the 17th century.They operate their brewery by the strict standards of the International Trappist Association and produce timeless styles of beer that float above the whims of craft's fleeting market.But, being in New England, their abbey cloister could not avoid one of the most polarizing trends in beer: the summer release of pumpkin beers, otherwise known as the pumpkin creep.