Fixed safelock behavior on modes that needed it.

tetris/modes/big_a2.lua

@@ -124,6 +124,7 @@ function MarathonA2Game:onLineClear(cleared_row_count)
 		self.grid:clear()
 		self.roll_frames = -150
 	end
+	if self.level >= 900 then self.lock_drop = true end
 end
 
 function MarathonA2Game:updateScore(level, drop_bonus, cleared_lines)

tetris/modes/konoha.lua

@@ -21,6 +21,7 @@ function KonohaGame:new()
 	self.time_limit = 10800
 	self.big_mode = true
 
+	self.lock_drop = true	
 	self.enable_hold = true
 	self.next_queue_length = 3
 end

tetris/modes/marathon_a2.lua

@@ -151,6 +151,7 @@ function MarathonA2Game:onLineClear(cleared_row_count)
 		if self:qualifiesForMRoll() then self.grade = 32 end
 		self.roll_frames = -150
 	end
+	if self.level >= 900 then self.lock_drop = true end
 end
 
 function MarathonA2Game:updateSectionTimes(old_level, new_level)

tetris/modes/tgmplus.lua

@@ -126,6 +126,7 @@ end
 function TGMPlusGame:onLineClear(cleared_row_count)
 	self.level = math.min(self.level + cleared_row_count, 999)
 	if self.level == 999 and not self.clear then self.clear = true end
+	if self.level >= 900 then self.lock_drop = true end
 end
 
 function TGMPlusGame:advanceBottomRow()