Merge branch 'master' of git.ispconfig.org:ispconfig/ispconfig3

Till Brehm

2015-11-15 0c1bc352c2f2984b19e43cc5e6182976a155fc0c

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