Add descriptive comments to table definition

Author: helmo

install/sql/incremental/upd_dev_collection.sql

@@ -1 +1,3 @@
 ALTER TABLE `sys_datalog` ADD `session_id` varchar(64) NOT NULL DEFAULT '' AFTER `error`;
+ALTER TABLE `sys_user` CHANGE `sys_userid` `sys_userid` INT(11) UNSIGNED NOT NULL DEFAULT '1' COMMENT 'Created by userid';
+ALTER TABLE `sys_user` CHANGE `sys_groupid` `sys_groupid` INT(11) UNSIGNED NOT NULL DEFAULT '1' COMMENT 'Created by groupid';

install/sql/ispconfig3.sql

@@ -1785,8 +1785,8 @@ CREATE TABLE IF NOT EXISTS `sys_theme` (
 
 CREATE TABLE `sys_user` (
   `userid` int(11) unsigned NOT NULL auto_increment,
-  `sys_userid` int(11) unsigned NOT NULL default '1',
-  `sys_groupid` int(11) unsigned NOT NULL default '1',
+  `sys_userid` int(11) unsigned NOT NULL default '1' COMMENT 'Created by userid',
+  `sys_groupid` int(11) unsigned NOT NULL default '1' COMMENT 'Created by groupid',
   `sys_perm_user` varchar(5) NOT NULL default 'riud',
   `sys_perm_group` varchar(5) NOT NULL default 'riud',
   `sys_perm_other` varchar(5) NOT NULL default '',