Git commits in Moodle 2.2.1 by David Mudrak

commit 7d8c4fb5afa2d4f428d8c2c0420904b228e93936
Author: David Mudrak <david@moodle.com>
Date:   Thu, 22 Dec 2011 03:41:37 +0800
Tag:    v2.2.1

MDL-30865 Workshop method aggregate_grading_grades_process() accepts explicit aggregation timestamp

commit 6cf3a650829ec500b70b1951b7513fd68b94bc5a
Author: David Mudrak <david@moodle.com>
Date:   Fri, 16 Dec 2011 04:26:45 +0800
Tag:    v2.2.1

MDL-30170 MNet peers administration - various usability improvements

commit 841b2a44ef6e9e89d3098087820cabc376edbb41
Author: David Mudrak <david@moodle.com>
Date:   Fri, 16 Dec 2011 04:15:56 +0800
Tag:    v2.2.1

MDL-30170 MNet peers administration - highlight the undelete widget