Git commits in Moodle 2.3.7 by Andrew Davis

commit abd110f8f977b96564d4668f646bbf610470a505
Author: Andrew Davis <andrew@moodle.com>
Date:   Mon, 29 Apr 2013 10:15:08 +0800
Tag:    v2.3.7

MDL-32913 core_grade:made it more obvious when the gradebook is broken due to a broken calculation

commit a035b96fd52da924818cf270ab2562ef6e18d6aa
Author: Andrew Davis <andrew@moodle.com>
Date:   Sun, 21 Apr 2013 15:30:13 +0800
Tag:    v2.3.7

MDL-31713 core_grade: added updating of grade min and max to update_final_grade()

commit 12091f27cf394af17cab9e957e30e319b19b8182
Author: Andrew Davis <andrew@moodle.com>
Date:   Fri, 19 Apr 2013 21:25:18 +0800
Tag:    v2.3.7

MDL-31713 core_grade:added a unit test to replicate a raw grade max bug

commit fa15dda77348b27842e105c9fb063cf4099a0fce
Author: Andrew Davis <andrew@moodle.com>
Date:   Fri, 12 Apr 2013 11:59:08 +0800
Tag:    v2.3.7

MDL-35385 mod_chat: made sure no message popups display within the chat window

commit aeacefdb197a5c471310d2c7c2c5e73419f8cc5b
Author: Andrew Davis <andrew@moodle.com>
Date:   Wed, 10 Apr 2013 08:34:04 +0800
Tag:    v2.3.7

MDL-29877 core_grade:add some upgrade code to fix broken grade items introduced by bad restores

commit bf5f227817ec65cfdf76d4bdc961af81a701bc31
Author: Andrew Davis <andrew@moodle.com>
Date:   Tue, 05 Mar 2013 12:00:59 +0800
Tag:    v2.3.7

MDL-37475 core_grade:fixed the handling of show totals