PHP Core libraries

- add 4dev/ folder

4dev/database/trigger/trg_edit_log.sql

@@ -0,0 +1,6 @@
+-- $Id: trg_edit_log.sql 3158 2010-09-02 02:49:00Z gullevek $
+
+-- DROP TRIGGER trg_edit_log ON edit_log;
+CREATE TRIGGER trg_edit_log
+BEFORE INSERT OR UPDATE ON edit_log
+FOR EACH ROW EXECUTE PROCEDURE set_generic();