added missing lang-string top_menu_mailuser + changed umlaut code to utf8 c...

cfoe

2012-05-24 ec3d9abb92487aab666cab95d6f5b3d4e9d23dbb

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