Developer credits

Git commits in Moodle 2.3.2 by Michael Aherne

commit a11b507f507084716875fb377b6f752458e1b7be
Author: Michael Aherne <michael.aherne@strath.ac.uk>
Date:   Fri, 06 Jul 2012 22:14:10 +0800
Tag:    v2.3.2

MDL-34534 Backport activity chooser default setting to 2.3 stable

commit c82d7fc832d9ef4b0f2a6b1bba77049414b9c358
Author: Michael Aherne <michael.aherne@strath.ac.uk>
Date:   Tue, 03 Jul 2012 19:05:05 +0800
Tag:    v2.3.2

MDL-34156 Remove subselect from slow query