Author: Luca Bösch
MDL-31443 backup: Title and cancel messages stating import and restore
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f55b45e473210727e1ddd83e2714e58e99f76c67
http://github.com/moodle/moodle/commit/f55b45e473210727e1ddd83e2714e58e99f76c67
+ 3.6 en [confirmcancelrestore,core_backup]
+ 3.6 en [confirmcancelimport,core_backup]
+ 3.6 en [importrootsettings,core_backup]