Merge pull request #81 from Tetro48/std-rs-lockpatch

Patch standard.lua to prevent midair lock

tetris/rulesets/standard.lua

@@ -93,6 +93,8 @@ function SRS:onPieceMove(piece, grid)
 		if piece.manipulations >= SRS.MANIPULATIONS_MAX then
 			piece.locked = true
 		end
+	else
+		piece.locked = false
 	end
 end