Author: Andrew Davis
MDL-48975 core_registration: altered registration strings
http://git.moodle.org/gw?p=moodle.git;a=commit;h=3efd707d63c68b69e4f0392639a0c9819ecbf2f9
http://github.com/moodle/moodle/commit/3efd707d63c68b69e4f0392639a0c9819ecbf2f9
+ 2.9 en [pleaserefreshregistration,core_admin]
+ 2.9 en [registermoodleorg,core_admin]
+ 2.9 en [registerwithmoodleorg,core_admin]
- 2.9 en [registermoodleorgli3,core_admin]
+ 2.9 en [registeredon,core_hub]
+ 2.9 en [registrationconfirmedon,core_hub]