Author: Daniel Thies
MDL-44925 Add SVG output option to TeX notation filter with PNG or MathJax for backup
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a57a336fd3760e4b6943e9cda712efa0a2d66383
http://github.com/moodle/moodle/commit/a57a336fd3760e4b6943e9cda712efa0a2d66383
+ 2.8 en [configconvertformat,filter_tex]
+ 2.8 en [convertformat,filter_tex]
+ 2.8 en [pathdvisvgm,filter_tex]