1) Revert the changes to Form_Upload and Form_Textarea, so we don't have to change third party code.

2) Change drawForm to check for a non empty $input->class in order to determime if the element should be wrapped in <li>...</li>.  If $input->class is empty then treat as a hidden field.

modules/forge/libraries/Form_Textarea.php

@@ -13,7 +13,6 @@ class Form_Textarea_Core extends Form_Input {
 
 	protected $data = array
 	(
-	  'type' => 'textarea',
 		'class' => 'textarea',
 		'value' => '',
 	);