Git commits in Moodle 2.1.7 by Aaron Barnes

commit 7d82a37b4985d1a41592412efc216b097a8709c8
Author: Aaron Barnes <aaronb@catalyst.net.nz>
Date:   Wed, 27 Jun 2012 06:38:24 +0800
Tag:    v2.1.7

MDL-34044 completion: Fix regression caused by MDL-26626

commit 28e0b61cd0f0f463bb5b10b702bd1e048ee7fcbb
Author: Aaron Barnes <aaronb@catalyst.net.nz>
Date:   Tue, 29 May 2012 10:34:16 +0800
Tag:    v2.1.7

MDL-33398 completion: Fix coding error (should be arrays not objects)

commit 676910acbd38bbca187d1921094e013f9e180341
Author: Aaron Barnes <aaronb@catalyst.net.nz>
Date:   Wed, 11 Apr 2012 14:54:40 +0800
Tag:    v2.1.7

MDL-32249 completion: Make grade criteria more consistent

commit 4ef74c4834b02b4d61674e631ab51de2ff018dea
Author: Aaron Barnes <aaron.barnes@totaralms.com>
Date:   Wed, 28 Mar 2012 05:53:09 +0800
Tag:    v2.1.7

MDL-32203 completion: Fix issues with data object where clauses