Author: Frederic Massart
MDL-55089 core: Charts are displayed with a data table by default
Part of MDL-54987 epic.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=40912196a875fb350c82795b2c1b08227abb55f5
http://github.com/moodle/moodle/commit/40912196a875fb350c82795b2c1b08227abb55f5
+ 3.2 en [showchartdata,core]