/**
  * Returns the full SilverCart version number.
  *
  * @return string
  *
  * @author Sebastian Diel <*****@*****.**>
  * @since 24.01.2013
  */
 public static function SilvercartFullVersion()
 {
     if (is_null(self::$silvercartFullVersion)) {
         $version = self::SilvercartVersion();
         $minorVersion = self::SilvercartMinorVersion();
         self::$silvercartFullVersion = $version;
         if (!is_null($minorVersion) && !empty($minorVersion)) {
             self::$silvercartFullVersion .= '.' . $minorVersion;
         }
     }
     return self::$silvercartFullVersion;
 }