Git commits in Moodle 3.0.3 by Colin Campbell

commit f71446f628d05f6d48476996d8eafac2164b3c1e
Author: Colin Campbell <colin@umn.edu>
Date:   Mon, 02 Nov 2015 23:45:36 +0800
Tag:    v3.0.3

MDL-51715 lib/grade: Unit test for aggregationweight

commit 26933d15b00103c528f320dcfcf5e6f87954393b
Author: Colin Campbell <colin@umn.edu>
Date:   Sat, 10 Oct 2015 00:14:04 +0800
Tag:    v3.0.3

MDL-51715 lib/grade: Zero out aggregationweight for novalue and dropped