Author: Eloy Lafuente
MDL-13435 xmlize - now throwing exceptions on parsing error. Credit goes to Tim/Mahmoud
http://git.moodle.org/gw?p=moodle.git;a=commit;h=5423b5f5b10c8fa2ead02e21bf1e247c1fe76adf
http://github.com/moodle/moodle/commit/5423b5f5b10c8fa2ead02e21bf1e247c1fe76adf
+ 2.0 en [errorparsingxml,core_error]