Developer credits
Git commits in Moodle 2.8.x by GeekSmith
commit d932630feb1c62bbb874835208da8bc8f6a59079 Author: GeekSmith <cbmegahan@geeksmith.com> Date: Sat, 13 Jun 2015 04:21:50 +0800 Tag: v2.8.7 MDL-50583 upgrade: Optimize upgrade_minmaxgrade
commit d932630feb1c62bbb874835208da8bc8f6a59079 Author: GeekSmith <cbmegahan@geeksmith.com> Date: Sat, 13 Jun 2015 04:21:50 +0800 Tag: v2.8.7 MDL-50583 upgrade: Optimize upgrade_minmaxgrade