use separate queues for unhighlighting block when stepping
use separate queues for unhighlighting block when stepping

rodibot/turtleblocksjs,tchx84/turtleblocksjs,tradzik/turtleblocksjs,garyservin/turtleblocksjs,hemantkasat/turtleblocksjs,walterbender/turtleblocksjs,tchx84/turtleblocksjs,rodibot/turtleblocksjs,hemantkasat/turtleblocksjs,garyservin/turtleblocksjs,Daksh/turtleblocksjs,tchx84/turtleblocksjs,rodibot/turtleblocksjs,hemantkasat/turtleblocksjs,garyservin/turtleblocksjs,walterbender/turtleblocksjs,tradzik/turtleblocksjs,Daksh/turtleblocksjs,walterbender/turtleblocksjs,Daksh/turtleblocksjs,tradzik/turtleblocksjs,i5o/turtleblocksjs,i5o/turtleblocksjs,i5o/turtleblocksjs