Merged revisions 4069-4117 from stable branch.

tbrehm

2013-08-21 7b47c0aa0aeee6f059f00008e36cc210ca89ecb9

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