Merged revisions 2916-2941 from stable branch.

tbrehm

2012-02-22 dec0dfa3a81e23a5a123be56ae8b36e0f1ed9137

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