updated installer for postfix-services for postfix >= 2.11

Florian Schaal

2016-02-12 9c6782b8ca5c72218790ac6c18fcb10c83124756

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