Changed installer page to no_visible_elements

--HG--
branch : rc-botanic-webdev

code/ryzom/tools/server/ryzom_ams/ams_lib/autoload/helpers.php

@@ -33,7 +33,7 @@ class Helpers{
          $smarty -> debugging = false;
          // caching must be disabled for multi-language support
          $smarty -> caching = false;
-         $smarty -> cache_lifetime = 120;
+         $smarty -> cache_lifetime = 5;
 
           //needed by smarty.
          helpers :: create_folders ();

code/ryzom/tools/server/ryzom_ams/www/html/installer/libsetup.php

@@ -13,6 +13,7 @@
         error_reporting( E_ALL );
 
         $return = array();
+        $return['no_visible_elements'] = false;
             
         helpers :: loadTemplate( "install" , $return );
         exit;