Author: Frederic Massart
MDL-42668 portfolio_boxnet: Notify the admins about the upgrade process
http://git.moodle.org/gw?p=moodle.git;a=commit;h=7c6ad254f3b1d03c4e1afe72be139ca09a5d996d
http://github.com/moodle/moodle/commit/7c6ad254f3b1d03c4e1afe72be139ca09a5d996d
+ 2.6 en [apiv1migration_message_content,portfolio_boxnet]
+ 2.6 en [apiv1migration_message_small,portfolio_boxnet]
+ 2.6 en [apiv1migration_message_subject,portfolio_boxnet]