Author: Andrew Nicols
MDL-45635 javascript: Make core dialogue translatable
http://git.moodle.org/gw?p=moodle.git;a=commit;h=0d1d5423327fccd30a1f7e1e4adacc61de250875
http://github.com/moodle/moodle/commit/0d1d5423327fccd30a1f7e1e4adacc61de250875
+ 2.8 en [areyousure,core]
+ 2.8 en [closebuttontitle,core]
+ 2.8 en [unknownerror,core]