Added world.getWorldFolder, server.getWorldContainer

src/main/java/org/bukkit/Bukkit.java

@@ -1,6 +1,7 @@
 package org.bukkit;
 
 import com.avaje.ebean.config.ServerConfig;
+import java.io.File;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -281,4 +282,8 @@ public final class Bukkit {
     public static Set<OfflinePlayer> getOperators() {
         return server.getOperators();
     }
+
+    public static File getWorldContainer() {
+        return server.getWorldContainer();
+    }
 }