Merge branch 'dns-dnssec-fix-dbmaster' into 'stable-3.1'

Till Brehm

2016-04-12 c92a4ee47ce5a7bb6b0e32a321ce09fece3e11dc

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