Fix custom functions

rules_shipping_framework_joomla.php

@@ -27,7 +27,7 @@ class RulesShippingFrameworkJoomla extends RulesShippingFramework {
 		$dispatcher = JDispatcher::getInstance();
 		$custfuncdefs = $dispatcher->trigger('onVmShippingRulesRegisterCustomFunctions',array());
 		
-		return array ();
+		return $custfuncdefs;
 	}
 	
 	protected function printWarning($message) {