Added multiworld permissions support to WEPIF

src/main/java/com/sk89q/bukkit/migration/NijiPermissionsResolver.java

@@ -20,6 +20,7 @@
 package com.sk89q.bukkit.migration;
 
 import org.bukkit.Server;
+import org.bukkit.World;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginManager;
@@ -66,6 +67,15 @@ public class NijiPermissionsResolver implements PermissionsResolver {
         }
     }
 
+    public boolean hasPermission(String worldName, String name, String permission) {
+        try {
+            return api.getHandler().has(worldName, name, permission);
+        } catch (Throwable t) {
+            t.printStackTrace();
+            return false;
+        }
+    }
+
     @SuppressWarnings({ "static-access" })
     public boolean inGroup(String name, String group) {
         try {