Added the ghost piece to modes that needed them.

tetris/modes/marathon_a1.lua

@@ -171,6 +171,9 @@ end
 
 function MarathonA1Game:drawGrid()
 	self.grid:draw()
+	if self.piece ~= nil and self.level < 100 then
+		self:drawGhostPiece(ruleset)
+	end
 end
 
 function MarathonA1Game:drawScoringInfo()

tetris/modes/marathon_a3.lua

@@ -346,6 +346,9 @@ function MarathonA3Game:drawGrid()
 		end
 	else
 		self.grid:draw()
+		if self.piece ~= nil and self.level < 100 then
+			self:drawGhostPiece(ruleset)
+		end
 	end
 end
 

tetris/modes/survival_a1.lua

@@ -141,9 +141,6 @@ end
 
 function SurvivalA1Game:drawGrid()
 	self.grid:draw()
-	if self.piece ~= nil and self.level < 100 then
-		self:drawGhostPiece(ruleset)
-	end
 end
 
 function SurvivalA1Game:drawScoringInfo()