countdown: Time in seconds before the countdown to trigger.
Added features
New behavior of plugin:
KICK-action: Kick idle players if all nonidle players are in bed(This is the old behavior of the plugin)
COUNTDOWN-action: When a player enter a bed there will be initiated a countdown. When this countdown is reached all players whom aren't in a bed will be kicked. If all players leave their bed this countdown will be aborted.
Will not kick idle players if they become idle when all other players are sleeping
