vhost quota not correctly pointing to document root (DF -T) (fixes #3984)

Pascal Dreissen

2016-07-08 a481a62a13c241df0b3269f7f915789f4451d51b

1
ALTER TABLE  `sys_session` CHANGE  `session_id`  `session_id` VARCHAR( 64 ) CHARACTER SET latin1 COLLATE latin1_swedish_ci NOT NULL;