Merge branch 'dnssec-fix-cron' into 'stable-3.1'

Till Brehm

2016-04-07 6a85386aa4a1fd2072341546f4b07937cdbd94e5

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