added interface of the new decoupled libraries concept gh-92

admin/models/custom_code.php

@@ -79,7 +79,7 @@ class ComponentbuilderModelCustom_code extends JModelAdmin
 	{
 		if ($item = parent::getItem($pk))
 		{
-			if (!empty($item->params))
+			if (!empty($item->params) && !is_array($item->params))
 			{
 				// Convert the params field to an array.
 				$registry = new Registry;