By: RHETT MANUEL Sports Editor MAMOU – Now, that’s how you end a skid. After taking a 19-0 loss last Saturday to Catholic-New Iberia, the Mamou Green Demons enacted revenge in a big way Monday night on their home turf. A six-run first inning, a Devin Ardoin grand slam homer in the fourth inning and six Westgate fielding errors set the table for a Brady Fontenot complete game shutout as Mamou cruis…