Author: Jean-Michel Vedrine
MDL-48912 mod_lesson: Essay page title disclosed to student
http://git.moodle.org/gw?p=moodle.git;a=commit;h=cb69eb8a003eba7ccf0e7d3e28ffe01643537bd4
http://github.com/moodle/moodle/commit/cb69eb8a003eba7ccf0e7d3e28ffe01643537bd4
+ 2.9 en [essayemailmessage2,mod_lesson]
+ 2.9 en [essayemailsubject,mod_lesson]