ISLANDORA-171 Add permissoin check for book add pages tab.

ilives/book.inc

@@ -180,11 +180,13 @@ class IslandoraBook {
       '#content' => fedora_ilives_create_book_view($this->pid),
     );
     
+    if (user_access('ingest new fedora objects')) { 
       $tabset['add_pages'] = array(
         '#type' => 'tabpage',
         '#title' => t('Add pages'),
         '#content' => drupal_get_form('book_add_pages_form', $this->pid),
       );
+    }
     return $tabset;
   }
 }