Author: Frederic Massart
MDL-42666 repository_boxnet: Advise the user to run the migration tool
http://git.moodle.org/gw?p=moodle.git;a=commit;h=3fa4ae2a3365e68da359b0505e6d0478ed1917b0
http://github.com/moodle/moodle/commit/3fa4ae2a3365e68da359b0505e6d0478ed1917b0
+ 2.5 en [migrationadvised,repository_boxnet]