/**
  * Marks OpenX as installed, removes any TASKS file. Removes UPGRADE file.
  *
  */
 protected function finalizeInstallation()
 {
     $oUpgrader = $this->getUpgrader();
     $oUpgrader->setOpenadsInstalledOn();
     OX_Upgrade_PostUpgradeTask_Controller::cleanUpTaskListFile($oUpgrader);
     $upgradeFileRemoved = $oUpgrader->removeUpgradeTriggerFile();
     if (!$upgradeFileRemoved) {
         $this->setModelProperty('aMessages', array('error' => array($GLOBALS['strOaUpToDateCantRemove'])));
     }
 }