Author: Eloy Lafuente (stronk7)
MDL-29262 backup: new setting to control the ttl of backup logs
Add one new backup setting, moving from the general CFG->loglifetime,
to be able to delete backup logged information often.
Conflicts:
admin/settings/courses.php
version.php
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c3cc54fcce94a1e16f420a5caedc2886e15db821
http://github.com/moodle/moodle/commit/c3cc54fcce94a1e16f420a5caedc2886e15db821
+ 2.2 en [configloglifetime,core_backup]
+ 2.2 en [generalsettings,core_backup]
+ 2.2 en [loglifetime,core_backup]