Implemented: FS#1003 - Autoresponder: Start and end date (Install)

install/sql/ispconfig3.sql

@@ -542,6 +542,8 @@ CREATE TABLE `mail_user` (
   `quota` bigint(20) NOT NULL default '-1',
   `homedir` varchar(255) NOT NULL,
   `autoresponder` enum('n','y') NOT NULL default 'n',
+  `autoresponder_start_date` datetime NOT NULL default '0000-00-00 00:00:00',
+  `autoresponder_end_date` datetime NOT NULL default '0000-00-00 00:00:00',
   `autoresponder_text` mediumtext NULL,
   `move_junk` enum('n','y') NOT NULL default 'n',
   `custom_mailfilter` mediumtext,