CC-2654: use id

- added id to navigation
- using id instead of label

airtime_mvc/application/configs/navigation.php

@@ -57,7 +57,8 @@ $pages = array(
                 'label'      => 'Manage Media Folders',
                 'module'     => 'default',
                 'controller' => 'Preference',
-                'action'     => 'directory-config'
+                'action'     => 'directory-config',
+                'id'		 => 'managa_folder'
             ),
             array(
                 'label'      => 'Stream Settings',

airtime_mvc/application/views/scripts/menu.phtml

@@ -14,7 +14,7 @@
 		    </a>
 		    <ul class="sub">
 			    <?php foreach ($page->getPages() as $sub) :
-			             if($isSaas && $sub->getLabel() == "Manage Media Folders"){
+			             if($isSaas && $sub->getId() == "managa_folder"){
 			                 continue;
 			             } ?>
 			    <li>