s/rcmail/rcube/

program/include/rcube_output.php

@@ -44,7 +44,7 @@ abstract class rcube_output
      */
     public function __construct($task = null, $framed = false)
     {
-        $this->app     = rcmail::get_instance();
+        $this->app     = rcube::get_instance();
         $this->config  = $this->app->config;
         $this->browser = new rcube_browser();
     }

program/include/rcube_plugin.php

@@ -202,7 +202,7 @@ abstract class rcube_plugin
       foreach ($texts as $key => $value)
         $add[$domain.'.'.$key] = $value;
 
-      $rcmail = rcmail::get_instance();
+      $rcmail = rcube::get_instance();
       $rcmail->load_language($lang, $add);
 
       // add labels to client