/**
  *  This function scans the connector plugins directory and adds the plugin to the plugin helper
  *
  */
 function install_plugins()
 {
     global $ai1ec_importer_plugin_helper;
     // Scan the plugin directory for php files
     foreach (glob(AI1EC_IMPORT_PLUGIN_PATH . "/*.php") as $filename) {
         // The class name should be the same as the php file
         $class_name = Ai1ec_String_Utility::classify($filename);
         // If the class exist
         if (class_exists($class_name) && is_subclass_of($class_name, 'Ai1ec_Connector_Plugin')) {
             // Instantiate a new object and add it as a plugin.
             // In the constructor the plugin will add his hooks.
             $ai1ec_importer_plugin_helper->add_plugin(new $class_name());
         }
     }
     $ai1ec_importer_plugin_helper->sort_plugins();
 }