Fixed: FS#3857 - Users unable to write in home directory.

Till Brehm

2015-05-07 743330f11621b2817c43a1fc73a298b82d8a8867

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