Added option to change the countdown interval, by default it is set to 20, meaning the spawner delay countdown hologram will update every second instead of 10 times per second as previous, this will drastically improve server performance, but you are fully open to customise it. It is preferred to set the countdown hologram distance low, so the server does not have to update it when players are further away.

Optimised other text related features.
Fixed crowbar calling the spawner break event causing to work incorrectly.
Fixed spawners not getting the required spawn locations.
Fixed spawner values updating even if the spawn event is cancelled.