public static function saveConfiguration()
 {
     if (self::$_configurationSaved) {
         return;
     }
     self::$_configurationSaved = true;
     $dataObject = new Varien_Object();
     $dataObject->setVarDir(Mage::getBaseDir('var'));
     $json = Mage::helper('core')->jsonEncode($dataObject);
     $projectInfo = self::getProjectInfo();
     $file = self::getDebuggerDir() . '/var/' . $projectInfo['identifier'] . '.project.json';
     file_put_contents($file, $json);
 }