public static function Start() {
      
      self::$Prefixes = array(
         self::CONTEXT_CORE            => 'c',
         self::CONTEXT_APPLICATION     => 'a',
         self::CONTEXT_PLUGIN          => 'p',
         self::CONTEXT_THEME           => 't'
      );
      self::$ContextOrder = array(
         self::CONTEXT_THEME,
         self::CONTEXT_LOCALE,
         self::CONTEXT_PLUGIN,
         self::CONTEXT_APPLICATION,
         self::CONTEXT_CORE
      );
      
      self::$Maps = array();
      self::$MapGroups = array();
   
      // Register autoloader with the SPL
      spl_autoload_register(array('Gdn_Autoloader', 'Lookup'));
      
      // Configure library/core and library/database
      self::RegisterMap(self::MAP_LIBRARY, self::CONTEXT_CORE, PATH_LIBRARY.'/core');
      self::RegisterMap(self::MAP_LIBRARY, self::CONTEXT_CORE, PATH_LIBRARY.'/database');
      self::RegisterMap(self::MAP_LIBRARY, self::CONTEXT_CORE, PATH_LIBRARY.'/vendors');
      
      // Register shutdown function to auto save changed cache files
      register_shutdown_function(array('Gdn_Autoloader', 'Shutdown'));
   }