Resolved nginx + letsencrypt problem, Fixes: #3845

Marius Burkard

2016-04-27 4a060eecaa15e60e6e886ba9c81546a79829334a

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