Cancels tosses for nonops

TossCanceller.java

package com.nullblock.vemacs.tosscanceller;

import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerDropItemEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class TossCanceller extends JavaPlugin implements Listener {
    public void onDisable() {
    }

    public void onEnable() {
        getServer().getPluginManager().registerEvents(this, this);
    }

    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
    public void onPlayerDrop(PlayerDropItemEvent event) {
      if (!event.getPlayer().isOp()) {
    		event.setCancelled(true);
    	}
    }
}