Add info icon on list organisation settings (#433)

Author: suelaP

public_html/lists/admin/defaultconfig.php

@@ -205,6 +205,7 @@
     'list_categories' => array(
         'value'       => '',
         'description' => s('Categories for lists. Separate with commas.'),
+        'infoicon'    => true,
         'type'        => 'text',
         'allowempty'  => true,
         'category'    => 'list-organisation',