Author: Frederic Massart
MDL-44764 atto_image: Reword the alt related labels
http://git.moodle.org/gw?p=moodle.git;a=commit;h=89331bc2173a96ed2f476c13f156d4d176f4eff7
http://github.com/moodle/moodle/commit/89331bc2173a96ed2f476c13f156d4d176f4eff7
+ 2.7 en [enteralt,atto_image]
+ 2.7 en [presentation,atto_image]
+ 2.7 en [presentationoraltrequired,atto_image]