Author: Serge Gauthier
MDL-53527 tool_lp: Improving the help popup of scales
http://git.moodle.org/gw?p=moodle.git;a=commit;h=7dbff38a7ca6eb7b31776b2c66af63471b123e23
http://github.com/moodle/moodle/commit/7dbff38a7ca6eb7b31776b2c66af63471b123e23
+ 3.1 en [scale_help,tool_lp]