Neither of these should be null. I should not have to check they aren't null. But apparently they can be. So I do. Fixes #402.

src/main/java/electroblob/wizardry/util/WizardryUtilities.java

@@ -635,7 +635,7 @@ public final class WizardryUtilities {
 			// This is a perfect example of where you need to use .equals() and not ==. For most applications,
 			// this was unnoticeable until world reload because the UUID instance or entity instance is stored.
 			// Fixed now though.
-			if(entity.getUniqueID().equals(id)){
+			if(entity != null && entity.getUniqueID() != null && entity.getUniqueID().equals(id)){
 				return entity;
 			}
 		}