http://en.wikipedia.org/wiki/SRV_record
Like there is a command for that, it should work. But what about testing it by yourself? ;)
event.getEntity().getWorld().strikeLightning(event.getEntity().getLocaton());
Well, and whats the content of your plugin.yml? I hope you didn't just copy & paste it from the example :P
it would rather be public void onEntityDeath(EntityDeathEvent event) { [...]event.getEntity().getLocation()[...] }
Take a look at the Multiverse code -> https://github.com/Multiverse/Multiverse-Core
Separate names with a comma.