Merge branch 'domain_specific_welcome_message' into 'stable-3.1'

Marius Burkard

2016-01-20 6cc90d3444407a32d5a1f6ff29ebf8f01c0e760d

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