Author: Sam Hemelryk
MDL-36297 caching: added for HTML purified text
http://git.moodle.org/gw?p=moodle.git;a=commit;h=118e933e2d4e634b43ced2d0327ca4c5856e2b6b
http://github.com/moodle/moodle/commit/118e933e2d4e634b43ced2d0327ca4c5856e2b6b
+ 2.4 en [cachedef_htmlpurifier,core_cache]