Git commits in Moodle 1.6.0 by jgraham909

commit 53f6a21e5e157ef33d58c7beaca5b0b439e309f6
Author: jgraham909 <jgraham909>
Date:   Fri, 17 Mar 2006 03:50:28 +0800
Tag:    v1.6.0

Fixed grade_category table definitions to handle change in MySQL versions 5.0.3 and greater see http://moodle.org/mod/forum/discuss.php?d=41501 for more details.