Developer credits
Git commits in Moodle 3.0.4 by Grigory Baleevskiy
commit b08fc23a6cb0a34d4e4ba212a99f86c812af4b10 Author: Grigory Baleevskiy <grigory@catalyst-au.net> Date: Sun, 31 Jan 2016 09:14:48 +0800 Tag: v3.0.4 MDL-52978 core_lib: fixed wrong days showing for dates in datepicker