Refactored Dolibarr triggers:

Created a DolibarrTriggers abstract class.
Moved common variables out of construct class
Improved run_trigger method signature

htdocs/core/class/interfaces.class.php

@@ -23,6 +23,7 @@
  *   \brief			Fichier de la classe de gestion des triggers
  */
 
+require_once DOL_DOCUMENT_ROOT.'/htdocs/core/triggers/DolibarrTriggers.class.php';
 
 /**
  *   Class to manage triggers