Author: Farhan Karmali
MDL-67419 admin: New admin setting for lang during user creation
http://git.moodle.org/gw?p=moodle.git;a=commit;h=470f94dc46ab9c2b20b6152526676357f300640b
http://github.com/moodle/moodle/commit/470f94dc46ab9c2b20b6152526676357f300640b
+ 4.0 en [autolangusercreation,core_admin]
+ 4.0 en [configautolangusercreation,core_admin]