Merge branch 'stable-3.1' of git.ispconfig.org:ispconfig/ispconfig3 into st...

Till Brehm

2016-06-22 df19dd8574710e166d347a3cb6935058147661bc

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