Author: Dongsheng Cai
MDL-71964 dashboard: add welcome message for all users
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a2d5d432235df8fccc7a1312e501f0bdab8f8cb3
http://github.com/moodle/moodle/commit/a2d5d432235df8fccc7a1312e501f0bdab8f8cb3
+ 4.0 en [welcomeback,core]
+ 4.0 en [welcometosite,core]
+ 4.0 en [privacy:metadata:user_preference:core_user_welcome,core_user]