Author: jerome mouneyrac
restore MDL-24536 [[backupmode30]] => 'Hub'
http://git.moodle.org/gw?p=moodle.git;a=commit;h=5a91e9ba7e4f6097b1d952c0ff79a39fc0ee76e3
http://github.com/moodle/moodle/commit/5a91e9ba7e4f6097b1d952c0ff79a39fc0ee76e3
+ 2.0 en [backupmode30,core_backup]