Author: Adrian Greeve
MDL-61131 repositories: Added a key to verify incoming urls.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f1d1a60e0ac8549c08e66062f3cd0110e4a92e24
http://github.com/moodle/moodle/commit/f1d1a60e0ac8549c08e66062f3cd0110e4a92e24
+ 3.5 en [missingsourcekey,core_repository]
+ 3.5 en [sourcekeymismatch,core_repository]