Author: Jean-Philippe Gaudreau
MDL-32148 Backup: Adding config settings for skipping courses in automated backups
http://git.moodle.org/gw?p=moodle.git;a=commit;h=914442ae295570db1c69b1fd678cffa41f6e54bb
http://github.com/moodle/moodle/commit/914442ae295570db1c69b1fd678cffa41f6e54bb
+ 2.4 en [skiphidden,core_backup]
+ 2.4 en [skiphiddenhelp,core_backup]
+ 2.4 en [skipmodifdays,core_backup]
+ 2.4 en [skipmodifdayshelp,core_backup]
+ 2.4 en [skipmodifprev,core_backup]
+ 2.4 en [skipmodifprevhelp,core_backup]