Author: Frederic Massart
MDL-44757 atto_equation: Use Moodle Docs URL for TeX doc
http://git.moodle.org/gw?p=moodle.git;a=commit;h=36beb828de8cc63b159461d6daaddf634be9f25e
http://github.com/moodle/moodle/commit/36beb828de8cc63b159461d6daaddf634be9f25e
+ 2.7 en [editequation,atto_equation]
- 2.7 en [editequation_desc,atto_equation]