Author: Marina Glancy
MDL-61424 admin: reset registration if token is rejected
http://git.moodle.org/gw?p=moodle.git;a=commit;h=01ed2a4b1c2683b2253a16c1eb18042a452b66d5
http://github.com/moodle/moodle/commit/01ed2a4b1c2683b2253a16c1eb18042a452b66d5
+ 3.4 en [errorwstokenreset,core_hub]
+ 3.4 en [unregisterexplained,core_hub]