Fixes Denizen bug

[09:36:11] [Server thread/ERROR]: Could not pass event PlayerDropItemEvent
to Denizen v0.9.5-SNAPSHOT (build 1500)
org.bukkit.event.EventException

Caused by: java.lang.UnsupportedOperationException: Not supported yet.
at mc.euro.demolition.objects.Bomb.getUniqueId(Bomb.java:206) ~[?:?]
at net.aufdemrand.denizen.scripts.containers.core
   .EntityScriptHelper.getEntityScript(EntityScriptHelper.java:78)
at net.aufdemrand.denizen.objects.dEntity.<init>(dEntity.java:234)
at net.aufdemrand.denizen.scripts.containers.core
   .WorldScriptHelper.playerDropItem(WorldScriptHelper.java:3076)
at sun.reflect.GeneratedMethodAccessor521.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl
   .invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_55]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:296)
... 30 more