Author: Michael Hawkins
MDL-74643 core_user: New admin setting for site support availability
This allows admins to configure whether contact site support is
available to everyone, authenticated users, or nobody.
The behat testing checks linked and direct access for each setting,
as well as adding testing that the support page override works as
expected.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e3b3ba90c8f5bf9b4b1224838c4895c70ac0e9a9
http://github.com/moodle/moodle/commit/e3b3ba90c8f5bf9b4b1224838c4895c70ac0e9a9
+ 4.1 en [availabletoanyone,core_admin]
+ 4.1 en [availabletoauthenticated,core_admin]
+ 4.1 en [configsupportavailability,core_admin]
+ 4.1 en [supportavailability,core_admin]