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

Till Brehm

2015-04-01 3f916ccb6ae7dca534054f1be1e337732b171ed0

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