do not show updates for bundled plugins

lib/plugins/extension/helper/extension.php

@@ -145,6 +145,7 @@ class helper_plugin_extension_extension extends DokuWiki_Plugin {
      */
     public function updateAvailable() {
         if(!$this->isInstalled()) return false;
+        if($this->isBundled()) return false;
         $lastupdate = $this->getLastUpdate();
         if ($lastupdate === false) return false;
         $installed  = $this->getInstalledVersion();

lib/plugins/extension/lang/en/lang.php

@@ -45,7 +45,7 @@ $lang['repository']                   = 'Repository:';
 $lang['unknown']                      = '<em>unknown</em>';
 $lang['installed_version']            = 'Installed version:';
 $lang['install_date']                 = 'Your last update:';
-$lang['available_version']            = 'Version:';
+$lang['available_version']            = 'Available version:';
 $lang['compatible']                   = 'Compatible with:';
 $lang['depends']                      = 'Depends on:';
 $lang['similar']                      = 'Similar to:';