This plugin was created for my private tekkit server.
Tested minecraft versions: 1.6.4 Cauldron (Tekkit server with Bukkit plugin support), 1.6.4 Bukkit-R2.0
/enableautoshutdown <true/false> -- Toggles this plugin (Requires /reload for changes to apply)
/setshutdowntimer <seconds> -- Amount of time to wait to shutdown the server when no player is found online.
You can also change the above variables in the configuration file which is in: plugins/serverIdlePoweroff/config.yml