Templates/Listviews

* removed most templates by sensibly restructuring lvTab-data. Util::toJSON() does the rest.
 * taught Util::toJSON() to recognize values prefixed with $ as js-code
 * use Util::toJSON whenever possible
 * misc
   - mail attachments are displyed again
   - always show all currency rewards on Quest-LVs
   - suppress an error, when encountering unused ItemMods

pages/classes.php

@@ -27,13 +27,7 @@ class ClassesPage extends GenericPage
     {
         $classes = new CharClassList();
         if (!$classes->error)
-        {
-            $this->lvTabs[] = array(
-                'file'   => 'class',
-                'data'   => $classes->getListviewData(),
-                'params' => []
-            );
-        }
+            $this->lvTabs[] = ['class', ['data' => array_values($classes->getListviewData())]];
     }
 
     protected function generateTitle()