Author: Huong Nguyen
MDL-81428 core: Display the correct status for the contact request
http://git.moodle.org/gw?p=moodle.git;a=commit;h=49bab9140b7b340cbf4364ee33fbe9acd448afa6
http://github.com/moodle/moodle/commit/49bab9140b7b340cbf4364ee33fbe9acd448afa6
+ 4.3 en [waitingforcontactaccept,core_message]